SKU: DCS-12V-200Ah-SL
DCS 12V 200Ah Slim Line (Lithium)

safe

Ultra-Safe

Explosion-proof / No leakage

stable

Stable

Low Internal Resistance / Proven Stability

long

Long Life

Ultra-long cycle life

guarentee

Guaranteed A Grade

Contracted A Grade cell supply

  • Perfect for UTEs, Dual Cabs, and Campers, Capable of Starting Large Diesel Engines with 1200 LCA
  • DCS 3.2V 20Ah Cylindrical (LifePO4) Cells
  • Equipped with a powerful 250A DCS BMS and Active CMS
  • Housed in a Metal Enclosure with a White Pearlescent Finish
  • Weight: 31.50KGs
  • 4000 Cycles @ 100% DOD ≥ 80% Capacity Retention @ 25°C
  • Temperature working range -25 degrees to 80 degrees C
  • Backed by a 5-year Unlimited Cycle Warranty

Availability: Out of Stock – Next Availability First Week of June

$2,499.00

Available on back-order

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The 200Ah slim lines feature a pair of terminals on each side (POS & NEG) that are internally bridged with copper busbars – this allows more surface area for more connections and the ability to run two cables one off each pair of terminals for large inverters and also comes in handy when expanding multiple batteries in parallel.

Encased in a metal enclosure, ensures these batteries are fully serviceable and even after the 5yr warranty period has lapased all parts, cell packs and Battery Management Systems are available and supported and these batteries can be returned to our service department for servicing and upgrades.

Featuring our Australian designed and developed DCS Battery Management System and Cell Management System this power plant supports 3000W inverters and has also been designed to pass Military Standards 810G vibration testing and ensures these batteries remain super reliable even in the most punishing of conditions.

All DCS batteries now feature our comprehensive Bluetooth System available on both Android and Apple operating systems that shows a lot of cool things.

These slimline DCS batteries are ideal for utes, dual cabs and for squeezing in between drawers and in campers. Why not run your entire vehicle from one of these? They provide 1200 LCA’s, so they will start even the largest of diesel engines. It is an amazing battery technology that can do it all.

Single DCS 12V 200Ah battery used for running everything in this 79 series, cranking, deep cycling, fast charging directly off alternator and running 3000W inverter

  • Cell status showing real-time cell balancing operation
  • BMS MOSFET temperature (great info when you are winching or running a large inverting load or your trolling motor to know how hard you are pushing the electronics).
  • SOC% estimate (using impedance tracking – the App learns the SOC after the first 10 cycles)
  • Battery pack voltage and cycle count
  • Amp meter – showing charge and discharge current
  • Connectivity distance up to 10m
  • Now there is no need to install battery monitors or shunts in boats, campers or vehicles. You have all the info you need at your fingertips.
  • The SOC estimate is accurate on single batteries, the more batteries that are expanded in parallel, the less accurate the SOC becomes.
  • This free application provides the perfect tell-tale about the battery packs state of health as it ages
  • Assists installers & integrators to quickly diagnose any system issues.
Specifications:
Nominal Voltage 12.8V
Nominal Capacity (1Hr) 200Ah
Case Dimensions (L x W x H) 512mm x 125mm x 325mm
Weight 31.50 Kgs
Cycling voltage 11.5 ~ 14.6V
Charge voltage 14.0 ~ 14.6V
Float Voltage 13.5 ~ 13.7V
Maximum Charge Current 200A
Recommended Charge Current ≤140A
Maximum Discharge Current ≤250A
DCS BMS (internal) DCS active cell management system, over/under voltage, over current charge/discharge, low/high temperature protections, satisfies the AS/NZS 3001.2:2022 lithium battery standards
Cell Chemistry DCS 3.2V 20Ah Cylindrical LFP (LiFePO4)
Cycle Performance 4000 Cycles @ 100% DOD ≥ 80% Capacity Retention @ 25°C
Cell Pack Design Laser Welded Aluminium With Thermal Interface Resin
LCA 1200
Ingress Protection IP53
Case Metal with white pearlescent finish
Operating temp Range -25°C to 80°C
Terminals Top Mount M8 Stainless steel / Copper
Parallel Connections Up To 10
Warranty 5 years
Certifications UN 38.3, UL 1642, IEC 62133 & 62619, CE

DCS 40135 & Tesla 4680 battery cell cycle testing comparison

Looking for a sturdy mount to secure your new 200ah dcs battery in an upright position?

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Click Here for more information on our stainless steel lazer cut battery trays….

200A Insulated Busbars For DCS 200AH Slim Lines

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DCS 6AWG 230mm Parallel Cables with M8 Ring Terminals

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DCS High Performance 2C Charge & Discharge Curves

DOWNLOAD APP (DCS LFP)

DCS Bluetooth Technology powered by DCS LFP, this APP is only for DCS LFP batteries which is based on BLE 4.0 technology. Every DCS battery pack comes standard with our detailed battery monitoring via Bluetooth.

This App provides comprehensive monitoring for DCS LFP batteries, including:

  • SOC%
  • Time Remaining
  • Battery pack voltage, Power & Current
  • Battery Management MOSFET temperature
  • Individual Cell Status with balancing indicators.
  • Connectivity distance up to 10 meters.
  • Every DCS battery pack comes standard with our detailed battery monitoring via Bluetooth

Learn More About the DCS LFP APP

Click Here to Watch the App Overview Video

For High-Capacity, Efficient Energy, Choose Our 200 amp Lithium Ion Battery. The 200ah Slimline Lithium Battery Delivers Exceptional Power in a Slim Design.

12v 200ah lithium battery

Technologically advanced electric appliances result in resource efficiency as every new generation overcomes the issues of preceding versions. Your previous electric appliances may be efficient enough; however, the advanced versions are eco-efficient, which means efficiency and compliance standards for environmental safety. To lower the greenhouse gases, you may run the generator on gasoline instead of diesel for electricity production; however, the solar system is efficient and eco-friendly at the same time. There is no need to pay for diesel or gas as sunlight is a free alternator. The solar arrays power up appliances during the daytime, while the 12v 200ah lithium battery units provide backup power during non-solar production hours.

Solar System for Self-Sufficiency

Sunlight is a gift by nature that we can easily use to power the electricity demand of the entire earth population. The estimated solar capacity of the earth is somewhere between 1500 to 50000 exajoules which is higher than the total world energy consumption of 560 exajoules by 2012. It means sunlight can easily power the entire planet earth if utilized intelligently. We can supply solar electricity to areas that aren’t favourable for solar production through the energy distribution system.

The drastic change will be no carbon emission, reduced electricity cost, and improved environmental conditions. The broad scope of solar energy covers domestic use, agriculture and horticulture applications, solar-powered transportation, and industrial consumption. The military camps and bases worldwide are also shifting over solar technology at large.

A well-designed on-grid solar system can lower peak demand during expensive hours set by local grid management, even during evening time, via battery power. You can have zero electricity expense by exporting extra produced electricity to the grid via net metering and harmful bills. During the winter season, these negative bills will support you to lower the electricity cost to absolute.

BATTERY STORAGE TYPES

Power batteries are the backbone for a solar system as you can increase efficiency by having a suitable capacity battery unit to match your power requirements. The battery types for solar systems are:

LEAD-ACID BATTERY

The lead-acid battery is the oldest version serving for over 150 years. It is best known for its low prices among the public. The downside includes heavyweight, outdated technology, low energy density, high memory effect, shorter lifespan, and low discharge rate. Though the new technologies are feature-rich and more efficient, the flooded acid batteries are high in the sale, but you couldn’t expect much from them.

lithium battery 12v 200ahAGM Battery

AGM or Absorbed Glass Mat battery banks are sealed acid battery units, also known as gel batteries, updated versions of a lead-acid battery. AGM battery has a limited amount of electrolyte absorbed within a plate separator. These batteries require less maintenance and are recharged five times earlier than a lead-acid battery.

Lithium Battery 12v 200ah

The lithium battery 12v 200ah is the technologically most advanced and feature-rich battery bank full of options. It works as a battery storage container for the solar system so that you can draw power when required. People often think that lithium-ion is more expensive than an AGM battery, which isn’t true. An AGM battery has a maximum of half of the discharge rate, which means you would require a double amount of ampere-hours to meet your power requirements. Further, the AGM batteries are heavier and need more connectors, accessories, and space. Lithium-ion batteries are lightweight due to their high energy density.

200ah lithium battery200ah Lithium Battery is the Perfect Power Backup Solution

Solar energy is an efficient, cleaner and greener form of energy for sustainability and environmental impacts. In these times of planet earth being polluted due to inefficient energy use, solar energy is the long-term answer for efficient energy usage. 200ah lithium battery is the perfect candidate when installing solar systems. They provide clean, green and efficient energy by supplying maximum power at all times according to their capacity.

Deep Cycle Systems is a leader in solar energy powered batteries and systems. Our solar batteries can work efficiently in a wide usage range regardless of environmental conditions. The Deep Cycle Systems battery pack works perfectly everywhere, whether on-grid or off-grid usage. Our solar purpose-built lithium batteries can provide you with constant high power without any voltage drop. In addition, our lithium powered solar batteries are suitable for solar charging. Hence, when you buy our lithium powered solar storm, it packs adequate energy to power your appliances or devices.

WHY SOLAR 200Ah DEEP CYCLE BATTERY IS A GOOD IDEA?

Following are characteristics of lithium solar battery

PREVENTING OVERCHARGE

Lithium batteries can charge very fast as compared to lead-acid batteries. When connected to a proper lithium charger, a good lithium battery prevents the battery from over-charging. Thus the charge is maintained without the risk of overcharging the battery.

200ah deep cycle battery

ANALYZE COST OF CHARGER/BATTERY

You want the best deal for your lithium powered solar battery. Therefore choose your option wisely as DCS lithium chargers are the affordable and highest quality for your solar powering lithium battery needs.

200AH DEEP CYCLE BATTERY – FREE CHARGING

Solar 200ah deep cycle battery is essentially providing you with free power. Since the batteries are being charged via solar panels, a one-time investment saves you from expensive electrical bills while committing to cleaner and greener energy. The power source for charging your battery is solar (via solar panels). It means that you are getting power for essentially free once you have a solar system set up at your property. Lithium batteries do not possess any charging memory. Therefore you can use them without having to charge fully.

100% EFFICIENT

Lithium Phosphate batteries have a 100% capacity available. Coupled with their fast charging and discharge rates, they can be an excellent fit for all applications. The quick charging ability delivers power bursts power in a short amount of time.

Deep Cycle Systems

WHY IS DEEP CYCLE SYSTEMS SUITABLE FOR SOLAR LITHIUM POWERED SYSTEMS?

Deep Cycle Systems offers premium solar systems solutions and a wide range of products. We at DCS specialize in lithium-ion batteries, lithium chargers, chargers etc. Deep Cycle Systems is a one-stop solution provider for power-related electrical supplies. When buying at DCS, we ensure to deliver our valuable customers a premium, trouble and hassle-free solution.

Deep Cycle Systems product line is top-notch. Over the years, we have provided our customers with durable, long-lasting products. Deep Cycle System takes pride in developing each product after research and development for years. Providing robust, strong power solutions, Deep Cycle Systems is one of the best options to shop for your needs. Pricing of products is another factor in the consumer mind. Everyone naturally wants the most value for their money. Deep Cycle Systems offers reasonable pricing for top of the line power solution products.

200ah slim lithium battery

200AH SLIM LITHIUM BATTERY – ONE OF THE LARGEST DEEP CYCLE BATTERIES FOR A BIG SOLAR SYSTEM

Deep cycle batteries have been around for several years now. However, with each year passing by, the technological advancement in deep cycle batteries is widely noticeable. A 200ah slim lithium battery can power an extensive solar system installed at the house of an office which requires an additional amount of energy compared to traditional homes. Due to their advancements in technology, deep cycle batteries can provide more power for bigger houses and offices with larger loads.

Deep Cycle Systems is a leading manufacturer for supplying top-notch deep cycle batteries. Our batteries are built to deliver the highest industrial standards. Deep Cycle Systems is one of the best deep cycle battery providers. Our batteries provide reliable and durable service life. Deep Cycle Systems offers deep cycle batteries with extended service life and increased performance. Deep Cycle Systems has been producing deep cycle batteries for years. Henceforth, our ample experience combined with years’ worth of research and development enables us to create high-quality deep cycle batteries. Deep Cycle Systems is one of the best deep cycle battery providers in the market.

IS A 200AH SLIM LITHIUM BATTERY GOOD?

The answer is yes! A 200ah slim lithium battery has many advantages and benefits over traditional lead-acid or advanced lithium batteries. Following are some of the advantages deep cycle battery offers.

INCREASED ENERGY BACKUP

Deep cycle batteries of the same size offer more in terms of power backup as compared to a standard deep cycle battery. Henceforth, the same sized deep cycle battery can provide more extended energy backup than the traditional lead-acid battery.

STEADY ENERGY SUPPLY

Deep cycle batteries have a constant supply of voltage at all times. This means that there is no change in the amount of voltage if the deep cycle battery is running low on charge. Henceforth, this steady voltage supply enables the energy system to work more efficiently and trustworthy.

EASILY TRANSPORTABLE

Deep cycle batteries are packed. The majority of the deep cycle batteries used are sealed batteries. This functionality enables the deep cycle batteries to be easily carried and transported. Therefore, deep cycle batteries are widely used in RV’s and off-road vehicles because of their increased ability to transport.

NO MAINTENANCE

Deep cycle batteries, especially dry ones, are easier to maintain. Deep cycle batteries, therefore, do not require any active maintenance. In comparison, lead-acid batteries require frequent maintenance of at least monthly acid-water level check-ups. Deep cycle batteries, therefore, are maintenance-free.

Overall, deep cycle batteries are a safer and wise investment when it comes to energy storage solutions. Due to their factor of producing renewable energy production, these batteries are clean and green for the environment. Henceforth, deep cycle batteries are environmentally friendly.

largest deep cycle battery

WHY DEEP CYCLE SYSTEMS FOR RELIABLE LARGEST DEEP CYCLE BATTERY?

Deep Cycle Systems is a market leader for manufacturing high-quality energy solutions. Our energy solution products are built to withstand harsh weather conditions along with increased rigidity. Deep Cycle Systems is one of the best energy solution providers. We have been in the business of providing reliable and largest deep cycle battery for years.

Our years’ worth of field experience combined with extended development and research enables us to be one of the best energy solution providers. Deep Cycle Systems offers affordable energy solutions and expert installation services at your doorstep. Therefore, once you shop for energy solutions from us, we deliver peace of mind.

slim line lithium battery

SLIMLINE LITHIUM BATTERY WILL NEVER LEAVE YOU STRANDED ON ROAD-SIDE

Lithium-ion batteries can be used as car batteries to power up headlights gauges and, in some cases, power the heater when the car is idling. The slimline lithium battery is highly reliable as they require no maintenance. Lead-acid batteries are notorious for running low when a vehicle is parked for days and weeks, eventually leading to weaker battery cells. However, lithium-ion batteries pose a low discharge rate; hence, the battery level is maintained even when not in use. So, a lithium-ion battery is a suitable perfect solution if you don’t want to jump-start your vehicle after parking it for weeks.

Deep Cycle Systems is a leading battery provider with an extensive range of lithium-ion batteries for cars. Our lithium-ion batteries have been produced under extensive research and development over the years. At Deep Cycle System, we develop durable, long-lasting, reliable batteries that provide years of service for your private and commercial vehicles. Deep Cycle System will never lead you to push-start your car in the early morning to work even in the coldest and harshest temperature.

Slimline lithium battery

WHY USE SLIMLINE LITHIUM BATTERY IN YOUR VEHICLE?

The most common problem with lead-acid batteries is running out of charge, stranding you. Such traditional batteries require regular maintenance, still running weak, especially in hot weather. On the other hand, a lithium-ion battery is pretty much connected and plays as it maintains its charge, preventing charging cells from going weak. In addition, you get rid of checking the acid level in your car every few days. Lithium-ion battery works for long years, whereas a typical lead-acid battery will only last two years.

Lead Acid batteries are reliable, maintenance-free, long-lasting and rigid. The initial cost of a lithium-ion battery may seem higher initially; however, lithium-ion batteries prove their worth as it works efficiently with time.

Slimline lithium battery supplies a constant voltage to the device it is powering, in this case, your car. A lithium-ion battery provides hassle-free power to your vehicle without fluctuations in power delivery. Lithium-ion batteries are standard in automotive sectors ranging from compact sizes used in cars and motorcycles to RV for camping and other special off-grid vehicles.

DEEP CYCLE SYSTEM SPECIALISED LITHIUM-ION BATTERY

Deep Cycle System is a top-notch power solution provider. We at Deep Cycle System offer various products ranging from batteries to solar systems, solar chargers, solar controllers, etc. Pricing is a critical factor in any purchase decision. Deep Cycle System offers reasonable pricing on excellent products. Our products are affordable along with maximum durability. Deep Cycle System delivers long-lasting power solutions for your off-grid and on-grid usage.

Deep Cycle system is equipped with a highly skilled team of installers. The product installation and guidance is more straightforward and seamless. In addition, Deep Cycle Systems has excellent sales services for our valuable customers as we are committed to providing the best product and after-sales services to our clients. Shop with us for a premium experience for your power solutions.

Largest Deep Cycle Battery

A largest deep cycle battery for your home is the best way to store solar energy and reduce electricity bill. We have deep cycle battery packs that you can use for your home to store solar energy and reduce electricity bill. Why go through all that hassle? Just drop by our online store and order a 200ah battery pack to keep at your home!

What Could I Get from a Largest Deep Cycle Battery?

If you have ever wondered what is a Deep Cycle Battery and what could you get from a largest deep cycle battery for your home? A deep cycle battery is a rechargeable battery that can be drained and recharged many times. It is designed to be discharged even below 50% of its capacity hundreds of times over the life of the battery.

Whereas other common batteries are only meant to be used until they half of their capacity. The most popular use for this type of technology would be in golf carts, forklifts and scooters but there are many other uses for these devices as well.

We have Largest Deep Cycle Battery packs that you can use for your home to store solar energy and reduce electricity bill. You can get a battery with a higher amp hour rating, but it will be heavier and more expensive. On the other hand, you can get a battery with a lower amp hour rating, but it will be lighter and cheaper.

200ah Deep Cycle Battery for Marine applications

You can use a 200ah Deep Cycle Battery as a starting battery, but it will not last very long. Deep cycle batteries are designed to provide steady power over extended periods of time. A starting battery is designed to provide bursts of high current (for example, when you start your car engine). When used in this way, the life expectancy of a 100ah deep cycle battery would be about 25-30 starts before it needs replacing.

A 200Ah deep cycle marine battery can also be used for power for other devices on your boat such as lights and electronics. These devices can draw up to 10 amps continuously over hours or days at a time so this type of application is ideal for larger capacity batteries like those found on boats with multiple cabins or people living aboard full time who want to run air conditioners etcetera all day long without worrying about recharging or running out of power mid-cruise!

200ah Deep Cycle Battery for under bonnet

A 200ah deep cycle battery is the best choice for under bonnet, super capacitors and hybrid vehicles. This type of battery is also called as “deep cycle” because it has a larger capacity than the traditional starting battery. It can be used for home solar power systems, electric golf carts and forklifts.

The first thing to know about this type of battery is that it has a much higher energy density than other types of batteries in its class (e.g., starting and deep cycle). This means you will get more out of every single amp hour compared to other types available on the market right now!

Deep Cycle System Battery AhRole of Deep Cycle System Battery Ah Capacity

Deep Cycle Systems (DCS), a leader in battery technology in Australia, emphasises the importance of ampere-hour (Ah) capacity in deep cycle batteries. The Deep Cycle System, Battery Ah capacity, is a pivotal measure, indicating the amount of energy the battery can store and deliver over time. For applications like renewable energy systems or backup power, a higher Ah means a longer-lasting energy supply. DCS’s range of deep cycle batteries, with varied Ah capacities, cater to diverse energy needs. They ensure reliable performance, even in demanding situations, making them an essential component in off-grid and auxiliary power setups.

With DCS’s commitment to quality, their deep cycle batteries with high amp hour battery capacity stand out. These batteries offer a robust solution for sustained power delivery. The higher the Ah rating, the more energy can be stored, translating into longer run times for devices and systems. This makes DCS batteries ideal for situations requiring consistent power over extended periods, such as in remote locations or emergency power systems. Their batteries are designed to withstand repeated charging and discharging, ensuring durability and efficiency.

Best Deep Cycle System BatteryBest Deep Cycle System Battery for Electricity Backup

When it comes to electricity backup, the best Deep Cycle System battery packs in Australia are second to none. Their batteries are engineered for resilience and longevity, providing dependable backup power during outages. This reliability is crucial for critical systems and households alike, ensuring uninterrupted power supply. DCS batteries are designed to seamlessly integrate with existing power systems, offering a hassle-free backup solution. With their advanced technology and superior build, these batteries are an investment in peace of mind and convenience.

Buy A Reliable Backup Energy Storage

DCS’s deep cycle batteries are distinguished by their deep discharge capability, making them perfect for backup applications. They can maintain power over extended periods, which is essential during prolonged outages. The robust design ensures they can handle the rigours of frequent power fluctuations and deep discharges without losing efficiency. For consumers seeking a top-notch electricity backup option, DCS’s deep cycle batteries are the go-to choice. They offer a blend of performance, durability, and reliability that is hard to match, making them an ideal choice for any backup power requirement.

200 Amp Lithium Battery200 Amp Lithium Battery for On-Grid Solar Power System

Deep Cycle Systems (DCS) has revolutionised on-grid solar power systems with their 200 amp lithium battery packs. These batteries are designed to maximise energy storage from solar panels, enhancing the efficiency of solar power systems. The high-capacity 200 amp lithium batteries are ideal for on-grid applications, storing excess solar energy for use during peak demand or low sunlight periods. This not only reduces reliance on the grid but also lowers electricity bills. DCS’s lithium batteries are lightweight, compact, and boast a longer lifespan compared to traditional batteries.

200 Amp Lithium Battery Ensures Reliable Energy Backup Option

In an on-grid solar power setup, DCS’s 200 amp lithium batteries play a critical role in energy management. They provide a stable and reliable energy source, ensuring that households and businesses have access to solar power even when the sun isn’t shining. The batteries’ high capacity allows for greater energy storage, making solar systems more efficient and effective. Additionally, DCS’s lithium batteries require minimal maintenance, adding to their convenience. Their integration into on-grid solar systems represents a smart investment in sustainable energy, aligning with Australia’s growing focus on renewable resources.

Lithium 200ah BatteryLithium 200ah Battery for Off-Grid Solar Power System

Deep Cycle Systems (DCS) offers the Lithium 200ah battery, a cornerstone for off-grid solar power systems. This battery is expertly designed to store and deliver energy effectively, ensuring that off-grid setups are powered efficiently. Its 200ah capacity allows for substantial energy storage, making it ideal for locations without grid access. With this battery, users can harness solar energy during the day and utilise it at night or during low sunlight periods, enhancing the autonomy of off-grid solar systems.

Maximising Solar Energy Utilization

The DCS Lithium 200ah battery not only stores energy but also optimises its usage. This is crucial in off-grid locations where every watt counts. Its efficient energy management ensures that solar power is utilised to its fullest potential, minimising waste and maximising availability.

Lithium Ion Battery 200ah has 12.8v Nominal Voltage – What is Nominal Voltage Capacity in a Battery?

The Lithium Ion Battery 200ah capacity and 12.8v nominal voltage, like those provided by Deep Cycle Systems (DCS), is a powerhouse of efficiency. Nominal voltage is essentially the default operating voltage of the battery. In this case, 12.8 volts is the average voltage at which the battery runs under normal conditions. It’s a critical spec, as it determines the compatibility of the battery with the devices it powers.

Lithium Ion Battery 200ahUnderstanding Battery Compatibility and Performance

Knowing the nominal voltage of a battery is key to matching it with appropriate applications. For DCS’s 200ah lithium-ion battery, the 12.8v nominal voltage indicates its suitability for a wide range of solar power systems and electronic devices. This compatibility ensures optimal performance and longevity of both the battery and the connected equipment.

Reliable DCS 200 Amp Lithium Ion Battery Provides Exactly 200A

The 200 Amp Lithium Ion Battery from Deep Cycle Systems (DCS) is a testament to reliability and precision. Engineered to deliver exactly 200 amps, this battery is a reliable power source for a variety of applications. Its precise amperage delivery is essential for devices and systems requiring consistent and accurate power input, making it a preferred choice for both professionals and hobbyists alike.

Precision Power for Critical Applications of 200 Amp Lithium Ion Battery Packs

Accuracy in power output is crucial, and the DCS 200 Amp Lithium Ion Battery excels in this aspect. Its ability to provide exactly 200A is particularly beneficial for sensitive equipment that demands steady and precise power input. This level of precision ensures the efficient and safe operation of connected devices, underlining the battery’s role as a vital component in critical power systems.

Li Ion Battery 200Ah Vs Lead-Acid Battery – Capacity Retention Ability

When comparing a Li ion battery 200Ah to a lead-acid counterpart, the difference in capacity retention ability is stark. Li-ion batteries, like those offered by Deep Cycle Systems (DCS), retain their capacity much longer than lead-acid batteries. This means they can deliver close to their full capacity even after hundreds of charge cycles. In contrast, lead-acid batteries tend to lose their capacity quickly, necessitating more frequent replacements. The superior capacity retention of Li-ion batteries makes them a more reliable and cost-effective choice in the long run.

Sustained Performance Over Time

Li-ion batteries maintain their performance over a longer period, making them ideal for applications where consistent power delivery is crucial. With a 200Ah Li-ion battery, users experience a consistent energy output, whereas lead-acid batteries might show a decline in performance as they age. This aspect is vital for systems requiring a stable power supply.

200 Amp Hour Lithium Battery is A Good Replacement Option for an AGM Battery

200 amp hour lithium battery is an excellent replacement for an AGM (Absorbent Glass Mat) battery, especially in terms of efficiency and longevity. Deep Cycle Systems (DCS) offers lithium batteries that are lighter, have a higher energy density, and charge faster than AGM batteries. This not only makes lithium batteries more convenient to use but also more cost-effective in the long term due to their extended lifespan and reduced maintenance needs.

Enhancing System Efficiency and Usability

The switch to a 200Ah lithium battery from an AGM battery can significantly improve the efficiency of a power system. Users benefit from faster charging times and a more extended range of operation, which is particularly beneficial for mobile or remote applications. The lightweight nature of lithium batteries also adds to the ease of installation and handling, making them a user-friendly option.

DCS 200ah Lithium Ion Battery With Active Cell Management System for Battery Cell Protection

The DCS 200ah Lithium Ion Battery stands out with its advanced Active Cell Management System. This system ensures each cell within the battery is monitored and balanced, promoting longevity and safety. It protects the battery from common issues such as overcharging, deep discharge, and temperature fluctuations. This active management contributes to the overall health and efficiency of the battery, ensuring it operates at its best throughout its lifespan.

200 Amp Lithium Ion BatteryProlonging Battery Life and Ensuring Safety

The inclusion of an Active Cell Management System in DCS’s 200ah Lithium Ion Battery not only prolongs the battery’s life but also enhances its safety. This system actively prevents conditions that could lead to battery damage or failure, offering peace of mind to users. It’s an essential feature for those relying on consistent and safe power in various applications, from renewable energy systems to critical backup power sources.

200ah Slimline Lithium Battery – Latest GEN3 BLE Battery Management System

Deep Cycle Systems (DCS) introduces the 200ah Slimline Lithium Battery, equipped with the latest GEN3 BLE (Bluetooth Low Energy) Battery Management System. This cutting-edge technology offers real-time monitoring and control via a Bluetooth connection, enhancing the user experience. The GEN3 BLE system ensures efficient operation and maximises the battery’s lifespan by actively managing charge and discharge cycles, temperature, and overall battery health. Its slimline design makes it an ideal choice for space-constrained applications without compromising power or efficiency.

Advanced Control and Monitoring for Optimal Performance

The GEN3 BLE Battery Management System in the 200ah Slimline Lithium batteries allows users to effortlessly monitor and adjust settings through their smartphones. This level of control and transparency ensures that the battery operates within optimal parameters, thereby enhancing its performance and reliability, especially in critical applications where battery health and status are paramount.

Slimline Lithium Battery 200Ah Active Cell Management Integrated Circuit Can Handle 3.7A Dynamic Movement Per Channel

DCS’s Slimline Lithium Battery 200Ah stands out with its Active Cell Management Integrated Circuit capable of handling 3.7A dynamic movement per channel. This feature ensures that each cell within the battery is individually managed for current flow, enhancing the battery’s efficiency and longevity. The ability to handle 3.7A per channel means the battery can smoothly adapt to varying power demands, making it exceptionally reliable for a range of applications.

Enhanced Efficiency and Power Stability

The Active Cell Management system in the Slimline Lithium batteries of 200Ah capacity plays a crucial role in maintaining power stability and efficiency. By managing dynamic movement at 3.7A per channel, the battery provides a consistent energy output, even under fluctuating load conditions. This makes it an ideal power source for systems that experience varied energy demands, ensuring an uninterrupted and stable power supply.

Best 200ah Lithium Battery –Thermal Management Ensure the Boards Remain Reliable In Harsh Environments

The best 200ah Lithium Battery by DCS is designed with an exceptional thermal management system, ensuring the boards remain reliable in harsh environments. This feature is critical for maintaining the battery’s integrity and functionality in extreme temperatures. The thermal management system actively regulates the temperature, safeguarding the battery from overheating and cold-induced inefficiencies. This makes the battery robust and suitable for use in a wide range of environmental conditions.

Optimal Performance in Diverse Conditions

The advanced thermal management system in DCS’s 200ah Lithium Battery plays a pivotal role in ensuring the battery’s reliability across various environmental conditions. Whether in the scorching heat or freezing cold, the battery maintains its efficiency and performance. This adaptability makes it the ideal choice for applications in challenging climates, where consistent power delivery is crucial.

Li Ion Battery 200ah200ah Lithium Battery Slimline CMS Able to Withstand Maximum Current and Thermal Loads for Long Term Reliability

Our 200ah Lithium Battery Slimline technology features a Slimline Cell Management System (CMS) engineered to withstand maximum current and thermal loads. This robust design ensures long-term reliability, which is crucial for applications requiring consistent and stable power. The CMS actively manages the battery’s load distribution and thermal conditions, preventing overloading and overheating. Such capabilities make the battery exceptionally durable and able to handle high-demand applications while maintaining optimal performance and longevity.

Enhanced Durability for High-Demand Applications

The resilience of the Slimline CMS in DCS’s 200ah Lithium Battery is particularly advantageous in high-demand scenarios. It ensures that the battery can consistently deliver power without compromising its structural integrity or performance. This durability is a key factor for users who need a reliable power source in environments where the battery is subject to continuous high loads and variable temperatures.

DCS Lithium 200ah Battery Packs are Designed to Absorb Severe Vibration Abuse

DCS’s Lithium 200ah Battery Packs are specifically designed to endure severe vibration abuse, a testament to their rugged construction. This feature is crucial for applications in mobile environments or settings prone to constant movement and jostling. The batteries’ ability to absorb and withstand vibrations ensures their continuous operation and longevity in challenging conditions. It also minimises the risk of damage due to physical stress, making them a reliable choice for demanding environments.

Ruggedness for Challenging Environments

The vibration-resistant design of DCS’s 200ah Lithium Batteries highlights their suitability for use in challenging environments. Whether in a moving vehicle, on vibrating machinery, or in remote, unstable locations, these batteries maintain their structural integrity and performance. This ruggedness provides users with the confidence that their power source will remain reliable and efficient, even under harsh physical conditions.

200 Amp Hour Battery – Our Batteries have Passed MIL-STD 810G Method 514.6

DCS takes pride in our lithium 200 Amp Hour Battery packs as these batteries have successfully passed the rigorous testing of MIL-STD 810G Method 514.6. This achievement underscores the batteries’ ability to withstand the specific challenges of vibration as outlined in military-grade testing standards. The MIL-STD 810G Method 514.6 test ensures that the batteries can endure various types of vibrations that they might encounter during their operational lifespan. Passing this test indicates a high level of durability and reliability, making these batteries suitable for both military and civilian applications where resilience is key.

Military-Grade Durability for Reliable Power

The accomplishment of passing MIL-STD 810G Method 514.6 with the 200 Amp Hour Batteries places DCS at the forefront of battery technology. This military-grade durability guarantees that the batteries are not only reliable but also capable of performing under extreme conditions. For users requiring a power source that can withstand rigorous and demanding environments, DCS’s 200 Amp Hour Batteries represent an optimal choice, combining resilience with exceptional performance.

Invest In A Fail-Safe 200 Amp Battery Design – If Any Component Fails, It Won’t Compromise The Battery Pack

Deep Cycle Systems (DCS) offers an innovative 200 Amp battery designed with a fail-safe mechanism. This design ensures that if any individual component fails, it does not compromise the integrity or functionality of the entire battery pack. This feature is particularly important in preventing power drainage from the battery cells and maintaining the battery’s overall efficiency and lifespan. Such a design is a hallmark of DCS’s commitment to reliability and user safety, making their batteries a smart investment for those who prioritise uninterrupted power and long-term value.

Ensuring Uninterrupted Performance and Safety

The fail-safe design of the 200 Amp battery by DCS is crucial for applications where consistent power is essential. In the event of a component failure, the battery’s ability to isolate the issue and prevent it from affecting the entire system ensures that the power supply remains stable and reliable. This not only enhances safety but also preserves the battery’s overall health and performance.

200 Amp Hour Lithium BatteryDCS 200ah Battery Deep Cycle – Ultra Safe and Explosion Proof Battery Pack

DCS’s 200ah Battery Deep Cycle is engineered for utmost safety, featuring an ultra-safe and explosion-proof battery pack. This design is a result of meticulous engineering and the use of advanced materials that prevent any risk of explosion, even in the most demanding environments. Safety is a paramount concern for DCS, and their 200ah battery is a testament to their dedication to producing secure, high-quality power solutions. This battery is ideal for users who need a dependable power source in environments where safety cannot be compromised.

Prioritising User Safety in Power Solutions

The explosion-proof design of the DCS 200ah Deep Cycle Battery is a critical feature for ensuring user safety. By incorporating robust safety measures and using explosion-resistant materials, DCS provides peace of mind to users, knowing that their power source is not just efficient but also exceptionally safe. This battery is particularly suitable for applications where operational safety is a primary concern.

DCS 200ah Deep Cycle Lithium Battery is Known for Low Internal Resistance

The 200ah Deep Cycle Lithium Battery from Deep Cycle Systems is renowned for its low internal resistance. This characteristic is pivotal in enhancing the battery’s efficiency and performance. Low internal resistance means the battery can deliver more power and has a faster response time, making it an ideal choice for high-demand applications. Additionally, this feature contributes to less energy loss as heat, thereby improving the battery’s overall efficiency and lifespan. DCS’s focus on low internal resistance in their 200ah batteries reflects their commitment to providing high-performance power solutions.

Maximising Efficiency and Power Output

Low internal resistance in DCS’s 200ah Deep Cycle Lithium Battery translates to improved efficiency and power output. Users benefit from a battery that not only delivers power more effectively but also charges and discharges with greater efficiency. This makes the battery suitable for a wide range of applications, from renewable energy storage to high-powered electronics, where efficient energy transfer is essential.

200 Amp HR Battery – A Grade Cells for Battery Manufacturing

Deep Cycle Systems (DCS) presents the 200 Amp HR Battery, crafted using A-grade cells, the pinnacle of battery cell quality. This choice in manufacturing material ensures top-tier performance, longevity, and reliability. A-grade cells are known for their consistent output, higher energy density, and reduced risk of defects. This results in a battery that not only meets but exceeds performance expectations. DCS’s commitment to using the best materials in its 200 Amp HR batteries positions it as a leader in durable and efficient power solutions.

Superior Quality for Enhanced Performance

The use of A-grade cells in the 200 Amp HR Battery reflects DCS’s dedication to quality and excellence. These premium cells ensure that the battery delivers a stable and reliable power source, which is vital for applications where performance and dependability are crucial. It’s an assurance of quality that sets DCS batteries apart in the market.

200ah Lithium Battery Slim and Lightweight than A Lead-Acid Battery

DCS’s 200ah Lithium Battery Slim energy pack stands out for its slim and lightweight design, a stark contrast to traditional lead-acid batteries. This modern construction makes it an ideal choice for applications where space and weight are critical factors. The lightweight nature of this battery significantly eases installation and handling, while its slim profile allows for more flexible placement options. This combination of slimness and lightness without compromising power capacity is a testament to the advanced technology employed by DCS.

Enhancing Portability and Installation Flexibility

The slim and lightweight design of the 200ah Lithium Battery by DCS not only makes it more portable but also broadens its range of applications. It’s especially beneficial for mobile setups, RVs, and marine applications, where space and weight constraints are prevalent. This design innovation underscores DCS’s commitment to providing versatile and user-friendly power solutions.

Battery Deep Cycle 200ah Also Work as a Starter Battery That Provides 1200 Lithium Cranking Amps

The Battery Deep Cycle 200ah from DCS is uniquely versatile, doubling as a starter battery with the capability to provide 1200 Lithium Cranking Amps. This dual functionality makes it a highly sought-after product, offering both deep cycle and high cranking power. It’s particularly beneficial for vehicles and systems that require robust start-up power alongside reliable deep cycle energy for sustained operations. The 1200 Lithium Cranking Amps ensure that the battery can handle the high initial power demands of starting engines with ease.

Dual-Purpose Design for Enhanced Utility

DCS’s 200ah Battery’s ability to function as both a deep cycle and starter battery showcases its exceptional utility. This dual-purpose design is particularly advantageous for users seeking a single battery solution that covers all their power needs. The high cranking amps provide the initial power surge required for starting engines, while its deep cycle capabilities support continuous, long-term energy needs. This multifunctional approach reflects DCS’s innovation in battery design.

Lifepo4 200ah Comes with Bluetooth and WiFi Connectivity

Deep Cycle Systems (DCS) elevates the standard with their Lifepo4 200ah battery, featuring both Bluetooth and WiFi connectivity. This integration of wireless technologies allows for seamless monitoring and management of the battery’s performance directly from a smartphone or computer. Users can effortlessly check charge levels and control settings and receive updates on their battery’s health, enhancing convenience and efficiency. This connectivity feature positions the Lifepo4 200ah at the forefront of modern battery technology, offering a user-friendly experience and greater control over power management.

Lifepo4 200ah with Enhanced User Interaction and Control

With Bluetooth and WiFi connectivity in the Lifepo4 200ah battery, DCS provides users with an unprecedented level of interaction and control. This technological advancement enables real-time monitoring and adjustments, ensuring that the battery operates at its optimal capacity. It’s a step forward in making energy management more accessible and user-friendly.

Operating temp Range of Lifepo4 Battery 12v 200ah is -30 to +110 Degrees C

The Lifepo4 Battery 12v 200ah from DCS boasts an impressive operating temperature range, functioning efficiently between -30 to +110 degrees Celsius. This wide range ensures that the battery remains reliable and effective in extreme conditions, from freezing cold to scorching heat. Such versatility makes it ideal for various applications, including those in harsh and fluctuating environments. The ability to operate across such a broad temperature spectrum underscores the robustness and adaptability of the Lifepo4 200ah battery, making it a suitable choice for challenging outdoor or industrial settings.

Reliable Performance in Diverse Environments

The extensive operating temperature range of the Lifepo4 battery with 12v 200ah capacity ensures its reliability in diverse environmental conditions. Whether used in cold climates or hot, the battery maintains consistent performance, demonstrating DCS’s commitment to providing versatile and durable power solutions to its customers.

Lifepo4 12v 200ah has IEC 62133 & 62619 Certification

The Lifepo4 12v 200ah battery from DCS is certified with IEC 62133 & 62619 standards, a clear indication of its quality and safety. These international certifications confirm that the battery meets stringent safety and performance requirements. IEC 62133 focuses on the safety requirements for batteries containing alkaline or non-acid electrolytes, while IEC 62619 specifies requirements for lithium secondary cells and batteries used in industrial applications. These certifications reassure users of the battery’s compliance with global safety and performance standards, solidifying its position as a reliable and trustworthy power source.

Lifepo4 12v 200ah with Global Standards for Safety and Quality

Achieving IEC 62133 & 62619 certifications for the Lifepo4 12v 200ah battery signifies DCS’s dedication to upholding international safety and quality standards. This compliance not only enhances user trust but also ensures that the battery is fit for a wide range of applications, from personal to industrial use. It’s a testament to DCS’s commitment to delivering superior and safe battery technology.

12v 200ah Lithium Ion Battery – Connect up to 10 Batteries in Parallel

Deep Cycle Systems (DCS) offers the versatile 12v 200ah Lithium Ion Battery, designed to cater to extensive power needs. One of the standout features of this battery is its ability to connect up to 10 units in parallel. This scalability allows users to significantly increase their power capacity, making it ideal for larger systems requiring substantial energy reserves. Whether for home energy systems, commercial setups, or recreational use, this parallel connection capability enhances both flexibility and power availability. It’s a feature that highlights DCS’s commitment to providing adaptable and powerful energy solutions.

Expanding Power Capacity with Ease

200ah LithiumThe ability to connect multiple 12v 200ah Lithium Ion Batteries in parallel from DCS empowers users to tailor their power systems to their specific needs. This scalability is particularly beneficial for applications that have dynamic power requirements. The ease of connecting these batteries in parallel ensures that users can effortlessly expand their system’s power capacity to meet increasing demands.

200ah Battery Deep Cycle – IP53 Ingress Protection

The 200ah Battery Deep Cycle by DCS is engineered with an IP53 ingress protection rating, ensuring resilience against dust and water. This rating indicates that the battery is protected against limited dust ingress and spraying water. Such protection is crucial for batteries used in outdoor or challenging environments, as it safeguards the internal components from external elements. The IP53 rating enhances the battery’s durability and reliability, making it suitable for a wide range of applications, including outdoor, marine, and industrial uses.

Enhanced Durability in Diverse Environments

With an IP53 ingress protection rating, the 200ah Deep Cycle Battery from DCS is built to last in diverse environments. This level of protection ensures that the battery can withstand exposure to dust and water, which is common in outdoor and industrial settings. Users can have confidence in the battery’s ability to perform reliably, even in less-than-ideal conditions, underscoring DCS’s dedication to creating robust and dependable power solutions.

Lithium Battery 12v 200ah can Be Connected in Parallel to Make a Bigger Power Bank

Deep Cycle Systems’ Lithium Battery 12v 200ah is designed to be connected in parallel, allowing users to create a larger power bank to meet their specific energy needs. This flexibility ensures that whether you’re powering a large RV, an off-grid home, or an extensive marine system, you can achieve the required power capacity by combining multiple 12v 200ah lithium batteries. The ability to scale up your power storage without sacrificing efficiency or reliability makes the DCS lithium ion battery 12v 200ah an ideal choice for those needing customisable and robust energy solutions.

Lithium Battery 12v 200ah – Scalable Power Solutions

Experience scalable power solutions with the DCS Lithium Battery 12v 200ah, designed for easy parallel connection to meet the expanding energy needs of various applications, ensuring you have the power you need when you need it.

Lithium Battery 12v 200ah Provide 1200 Lithium Cranking Amps for Engine Starting

The Lithium Battery 12v 200ah from Deep Cycle Systems delivers an impressive 1200 lithium cranking amps, providing the high power necessary for reliable engine starting. This capability makes it an excellent choice for vehicles, boats, and generators requiring a powerful and dependable start. The DCS 12v 200ah Lithium Battery combines high-cranking power with the longevity and efficiency lithium technology is known for, offering users a superior alternative to traditional starting batteries.

High Power for Reliable Starting

Leverage the high cranking power of the DCS Lithium Battery 12v 200ah for reliable engine starting, ensuring your vehicles and equipment are ready to go when you are.

UN 38.3 Certification Ensure Lithium 200ah Slim Line Lithium Battery Do Not Rupture, Leak or Disassemble

Deep Cycle Systems ensures the safety and reliability of its Lithium 200ah Slim Line Lithium Battery with UN 38.3 certification. This certification confirms that the battery has undergone rigorous testing and meets strict safety standards to prevent rupture, leakage, or disassembly under normal and extreme conditions. By choosing the DCS slim line lithium ion battery, users are selecting a power source that not only delivers exceptional performance but also adheres to the highest safety protocols.

Slim Line Lithium Battery – Certified Safety and Reliability

The UN 38.3 certification of the DCS Lithium 200ah Slim Line Lithium Battery guarantees users a safe and reliable energy solution, meeting the highest standards for peace of mind.

Slim Line Lithium Battery is Free From Electrical, Mechanical, and Thermal Abuses

The Slim Line Lithium Battery from Deep Cycle Systems is designed to withstand electrical, mechanical, and thermal abuses, ensuring a durable and resilient power source for various applications. This protection is critical for maintaining performance and safety, particularly in demanding environments where the risk of damage is higher. With the DCS Slim Line Lithium Battery, users can trust in a product that is built to last and perform under pressure, free from the common pitfalls that can affect battery integrity and lifespan.

Protection Against All Forms of Abuse

Trust in the robust design of the DCS Slim Line Lithium Battery, engineered to be free from electrical, mechanical, and thermal abuses, ensuring durability and long-lasting performance.

12v 200ah Lithium Battery – Get 200Amps for 1 Hour

The 12v 200ah Lithium Battery from Deep Cycle Systems is capable of delivering a continuous 200 amps for one hour, providing substantial power for high-demand applications. This feature is particularly beneficial for powering large systems and equipment that require a consistent and robust energy supply. The DCS 12 volt 200 ah lithium battery is ideal for users seeking a reliable power source that can handle intensive loads without compromising on performance or efficiency.

Consistent Power When It Matters Most

With the DCS 12v 200ah Lithium Battery, get consistent 200 amps for one hour, ensuring your high-demand applications are powered effectively and reliably when it matters most.

12v 200ah Lithium Battery – Efficient Charge and Discharge

Deep Cycle Systems’ 12v 200ah Lithium Battery is engineered for efficient charge and discharge cycles, maximising energy usage and extending battery life. This efficiency not only reduces the time needed for recharging but also ensures that energy is delivered more consistently, improving the overall performance of your power systems. The DCS 12v 200ah Lithium Battery stands out for its ability to maintain high levels of efficiency throughout its lifespan, making it an excellent choice for those requiring dependable and long-lasting power solutions.

Maximized Energy Utilisation

Experience maximised energy utilisation with the DCS 12v 200ah Lithium Battery, designed for efficient charge and discharge, enhancing the performance and longevity of your power systems.

Call Us Today

Deep Cycle System is the leading manufacturer of deep-cycle lithium batteries. We have high-precision solar products that are manufactured with perfection. Our quality products have the public’s confidence due to their reliable performance. Deep Cycle Systems is just one call away for energy solutions guidance. You can call us on 1300 795 327. In addition, you can also email us at info@deepcyclesystems.com.au

Battery Bundles

Sale

12V 200Ah + Victron Smart 100/20A MPPT Solar Charge Controller + Victron Smart 30A dcdc charger

safe

Ultra-Safe

Explosion-proof / No leakage

stable

Stable

Low Internal Resistance / Proven Stability

long

Long Life

Ultra-long cycle life

guarentee

Guaranteed A Grade

Contracted A Grade cell supply

12V 200AH Lithium Ion Battery

  • DCS Battery delivers a minimum of 2500 Cycles
  • Ideal replacement for Gel or Lead Acid Batteries
  • High performance compared to Traditional Batteries

12V Smart 30A DC-DC & Smart 20A MPPT Battery Chargers

  • Dedicated solar regulator
  • Dedicated dcdc charger
  • Both fully programmable via Bluetooth
  • Obtain full 30A from engine + whatever current the solar panels will provide

Availability: Out of Stock – Next Availability First Week of June

Original price was: $3,150.00.Current price is: $2,899.00.

4WD Canopy Bundle + 12V 200AH Lithium Ion Battery + Victron Phoenix Smart 12/2000W Inverter + Victron Blue Smart IP-67 25A Charger + Enerdrive DC2DC Charger + Victron Smart Battery Protect + Victron 115W Mono solar panel

safe

Ultra-Safe

Explosion-proof / No leakage

stable

Stable

Low Internal Resistance / Proven Stability

long

Long Life

Ultra-long cycle life

guarentee

Guaranteed A Grade

Contracted A Grade cell supply


Pickup only, contact us for a freight quote if interstate or regional shipping is required
Availability: Out of Stock – Next Availability First Week of June

$4,400.00
Sale

ENERDRIVE AUX BUNDLE DEAL – 12V 200AH + DC2DC

safe

Ultra-Safe

Explosion-proof / No leakage

stable

Stable

Low Internal Resistance / Proven Stability

long

Long Life

Ultra-long cycle life

guarentee

Guaranteed A Grade

Contracted A Grade cell supply


12V 200AH Lithium Ion Battery

  • DCS Battery delivers a minimum of 2500 Cycles
  • Ideal replacement for Gel or Lead Acid Batteries
  • High performance compared to Traditional Batteries

12V 40A DC to DC Battery charger.

  • Features separate inputs for Engine and Solar Charging
  • 40A output up to 40°C that Decreases for Smaller Ah Batteries
  • Uses engine input if engine is running otherwise solar input will be used

Availability: Out of Stock – Next Availability First Week of June

Original price was: $3,128.00.Current price is: $2,899.00.

REDARC AUX BUNDLE DEAL – 12V 200AH + BCDC1250D

safe

Ultra-Safe

Explosion-proof / No leakage

stable

Stable

Low Internal Resistance / Proven Stability

long

Long Life

Ultra-long cycle life

guarentee

Guaranteed A Grade

Contracted A Grade cell supply


12V 200AH Lithium Ion Battery

  • DCS Battery delivers a minimum of 2500 Cycles
  • Ideal replacement for Gel or Lead Acid Batteries
  • High performance compared to Traditional Batteries

Redarc BCDC1250D Battery Charger

  • 50amp output makes it the most powerful in REDARC’s BCDC range
  • Maximises the performance and life of your auxiliary battery

Availability: Out of Stock – Next Availability First Week of June

$3,099.00
Shipping

Ship to a residential address, Ship to a commercial address

Battery User Guide

Battery Installation Locations

DCS Batteries that are in a sealed traditional style battery case are IP rated 54 unless otherwise specified.

As there is a considerable amount of electronics inside the battery cases, it is important that these batteries are protected from the ingress of particles and water.

IP54 means that there is partial protection against dust & similar particles & protection against splashing water from any direction for a minimum of 10 minutes.
IP54 MEANS THE BATTERIES ARE NOT WATERPROOF

Our DCS Slimline battery range is IP rated to 53 unless otherwise specified.
IP53 means that there is partial protection against dust & similar particles & protection against splashing water up to 60 degrees from the vertical with limited ingress permitted for 3 minutes.
IP53 MEANS THE BATTERIES ARE NOT WATERPROOF.

DCS batteries should be installed and operated in a location that will not exceed the specified operating temperatures.

Make yourself aware of the new requirements that relate to battery storage, IP ratings and venting. Australian / New Zealand Standards (AS/NZS 3001.2:2022)

Do Not

  • Install DCS batteries underneath a vehicle or caravan, or any other external location that is exposed to the atmosphere unless it is fully contained inside a suitable battery housing that will prevent the ingress of particles & or water. Also, sufficient mechanical / structural protection is needed to prevent damage from rocks and debris during recreational vehicle travel.
  • Pressure wash or hose your batteries. You can wipe them down with a damp cloth if needed.
  • Submerge your batteries in any fluids.
  • Install DCS batteries near high heat sources, e.g. exhaust manifolds or turbo chargers.

Operating Temperatures

Each battery has a designated operating temperature range depending on the cell type used.
Our under bonnet Hybrid battery range (using cylindrical cells) is designed to work in ambient temperatures between -30°C to 110°C. Do not operate outside of this temperature range.

Our 12V 180Ah auxiliary batteries have an operating temperature range of -30°C to 60°C. The DCS BMS will not allow these batteries to operate if the 60°C is exceeded.

The DCS BMS will not allow a frozen Battery that is below 0 degrees Celsius to be charged. Charge will only be allowed when the ambient temperature of the battery cell is back above 0°C.
Discontinue the use of a battery immediately if the battery becomes excessively warm whilst in a resting/standby state.

Please check the specifications for the recommended operating temperatures of your particular battery on the DCS website.

www.deepcyclesystems.com.au

Securing your battery

Your battery must be secured to prevent movement. Restraints must prevent any movement under a pulling force of twice the battery weight.

The recommended hold-down bracket torque is 4 N-m. or 3.5 lb-ft.

Care has to be taken to prevent the battery lid seal/gasket from deforming when securing the battery, which could affect the IP rating of the battery.    Do Not over-tighten the battery holding clamps.  

Battery Charging

Use only approved Lithium-Iron Phosphate specific chargers for your battery’s nominal voltage, chemistry and maximum charge rate with the correct charging stage voltages.

All DCS 12V cylindrical cell packs to be charged at:

14.4V  Bulk

13.5V  Float

The DCS 12V 180ah Auxiliary prismatic cell pack (SKU: DCS-12V-180ah) to be charged at:

14.2V Bulk

13.5V Float

Be aware some chargers have fixed charging voltages and cannot be adjusted.

Check the charger specifications for charging voltage levels & charging profiles before purchasing.

Alternator Charging

Our under-bonnet dual battery systems, 80ah Extreme & Slimline range, can be charged directly from the vehicle’s alternator, providing that they are the only battery chemistry being charged.

For example, you cannot parallel a Lithium battery to a lead acid battery and charge from the alternator.

This type of set up has to be separated by using a DC-DC Charger.

If you are parallel connecting batteries together, they have to be the same chemistry, nominal voltage, capacity and age.

Each battery has a maximum charge current listed in the specifications table that should not be exceeded; otherwise, permanent damage could be done to the battery.

When the batteries are parallel connected together, this doubles the amount of current the batteries can be charged at.

For example, our DCS 180ah (2 x 90ah ) dual battery system. The maximum charge current is 80 Amps per battery. So 2 x 80A = 160 Amps. This means you can charge these batteries provided your alternator’s max. output does not exceed 160Amps.

Before choosing a battery, check the maximum output current your alternator can produce and also find out the Cold Cranking Amps (CCA) needed to start your vehicle.

Your factory alternator is generally the best alternator to use, and there is no need for high output aftermarket alternators.

Check the specifications table on the DCS website for the particular battery you are interested in, and look for Lithium Cranking Amps (LCA).

If the LCA meets or exceeds the CCA for your particular vehicle, then the battery is suitable for your vehicle.

Parallel Connected Batteries

Connect Battery 1 Positive to Battery 2 Positive

Connect Battery 1 Negative to Battery 2 Negative ( This cable is extremely important as some vehicles use the chassis as a negative link, which is prone to failing due to corrosion, which causes a high resistance. )

In Balance Wiring

When you have batteries that are wired in parallel, as described above, it is good practice to wire your loads and inputs in balance.

What this means is, for example, to connect loads & inputs positive to the first battery e.g. Battery 1 and the negative loads & inputs to the last parallel connected battery e.g. Battery 2.

This is important when using an inverter that can have a high current draw so that they evenly draw from the parallel connected batteries.

Storage

If you are not going to be using the battery for some time, charge the battery fully to a 100% state of charge using the correct charging profile and voltages.

Disconnect everything off the battery terminals, and it can be left in this state for up to 3 months.

After 3 months, cycle the battery, fully discharge the battery (11.5 volts), then fully charge the battery, and the battery can then be left in this state for another 3 months.

Do Not

  • Use a lead acid charger / maintainer on a Lithium battery.

DCS LFP App

Every DCS LFP battery pack comes standard with detailed battery monitoring information via Bluetooth. (BLE 4.0 Technology)

The app can be downloaded to Android or iOS devices that are Bluetooth enabled.

Comprehensive battery monitoring information for DCS LFP batteries include

  • SOC%. (State Of Charge)
  • Battery pack voltage, Current & Power
  • Time Remaining
  • Individual Cell Voltage Status
  • Battery Management MOSFET temperature
  • Connectivity distance up to 10 metres.

Renaming Your Batteries Using The App 

  • Open the DCS LFP app and connect to the battery.
  • Tap on the three horizontal lines on the top right hand corner of the screen.
  • Input Password. 736263   >  OK
  • Name ………… > OK
  • Refresh the battery list by tapping the circular arrow.
  • Select custom and your battery will now appear in this section.

Modifications

Do not attempt to alter, modify or repair any part of the battery.

Any modifications to the battery will void your warranty.

Fully Discharged Battery

The BMS will emergency open the circuit of the battery terminals to protect the cells. Typically, you will see 3 - 4 volts across the battery terminals when using a multimeter. The BMS needs a 12V supply with at least 1A of current to release and wake up from a cell emergency protection state.

Most mains chargers with a lithium profile will do a slow recovery charge, as will most solar regulators. Some chargers on the market today that are advertised as ‘lithium’ compatible still don’t have the firmware to do a slow recovery charge to release BMSs. If you have a charger that will not wake up the BMS, the easiest way to wake it up is to connect an unregulated solar panel directly to the battery terminals; however, ensure all loads are disconnected before you do this. Having said that, every system should have a suitable low cut-off voltage to shutdown loads/accessories so that the batteries are not fully drained.

“Batteries cannot be left flat/empty; if the low voltage cutoff is triggered, the battery pack should be fully charged as soon as possible. If access to a suitable charger is not possible, disconnect all loads from the battery terminals. The warranty will be void if the battery pack has been left in a low voltage cutoff state for longer than 14 days.”

The most important thing is to isolate everything from the battery terminals, as cables/loads connected to the terminals cause more power drain as the FET gates have to remain closed to cull the accessory standby loads connected to the battery pack + offset BMS standby power consumption.

Incorrect State of Charge Due to a Synchronisation issue:

The state of charge is a calculated value by the BMS and will need to be reset (synchronised) every now and then.

The synchronisation process is automatic and is performed each time the battery is fully charged. The battery monitor (BMS) determines that the battery is fully charged when all 3 "charged" conditions have been met. The "charged" conditions for 12V batteries is:

Charged Voltage (> 14.0 Voltage)

Tail current (4% of battery capacity)

Charge detection time (1 minute)

Electrical Installations Standard  ( AS/NZS 3001 . 2 : 2022 ) For Transportable Structures which includes Recreational Vehicles, Caravans etc.

Please note AS/NZS 3001 is made mandatory by electrical legislation in each state and territory.

The new standard includes requirements for “connectable electrical installation batteries” covering any battery that is installed with the primary purpose of supplying the living / accommodation features of a transportable structure, which includes recreational vehicles and caravans etc.

Below is a brief summary of some of the new requirements.

Lithium - Ion Batteries

  • The location must be appropriate to ensure that the battery operates within the manufacturer’s defined operating temperatures and IP rating.
  • Batteries must be located in a position that prevents any vented gases from entering a habitable area of the recreational vehicle. Any vented gases have to be vented externally from the vehicle. ventilation openings have a minimum vent area requirement, which is calculated based on the ratings of the battery. Any opening into the interior (habitable area) must be provided with an air seal.
  • Any metallic service lines (eg. Gas, Diesel, Water etc.) located near the battery must be at least 300mm. clear of the battery terminals or must be shielded with dielectric material to prevent against short circuits.
  • A battery must be secured to prevent movement. Restraints must prevent any movement under a pulling force of twice the battery weight.

FAQ

Lithium Ferrophosphate (LFP) is a flame retardant, stable, safe and proven cell chemistry that has a very good energy density around 325 Wh/L. This cell chemistry can be engineered for various applications by adjusting the ratio of elements to provide high performance characteristics. E.g. the DCS marine battery range runs 2C cells, which means our little 75Ah battery will discharge comfortably at 75Ah x 2C = 150A. The DCS 80Ah Extreme runs 10C cells which means the 80A can comfortably discharge at 80Ah x 10C = 800A but is of course limited to lower currents due the the Battery Management System.

LFP also has very good cycling durability between 2,000 ~ 12,000 cycles can be achieved depending on how well the cells are managed, and the lowest rate of capacity loss (aka greater calendar-life) compared to other lithium cell chemistries.

Battery cells are simply a bunch of resistors with the ability to store energy. A 100Ah battery pack has a different resistance characteristic compared to a 50Ah battery pack, that theoretical difference in resistance is 2:1. So if you connect a 100Ah battery in parallel to a 50Ah battery there is no way for these two batteries to equalise and therefore you can’t charge them correctly. So for example connecting a 60Ah calcium starting battery to a 120Ah AGM via a VSR (Voltage Sensing Relay) you cannot charge both batteries correctly and from that day onwards you are prematurely destroying both battery packs. Same theory applies with lithium’s it’s still a battery pack.

What’s the solution? A DC-DC charger, you now have a permanent point of isolation (meaning that both batteries are never connected to each other in parallel). The DC-DC charger takes the surplus power from battery A (engine) and chargers battery B (aux/house). This device now allows any battery capacity and or chemistry to be used.

Yes you can, but lithium’s have a different voltage curve, so you would still need to use a programmable VSR to dial them in correctly. You would also need to ensure the batteries are programmed to never exceed a 10%SOC variance, any larger and you risk damaging the BMS's. These devices also draw a lot of power when engaged to so it’s best to run the two batteries in permanent parallel and run a load disconnect instead of a VSR.

Lithium battery cells have a super low resistance so are very easy to charge and very efficient. This level of efficiency means you can charge them at very high C rates. For example if you look at the charge rate of a 100Ah AGM battery the recommended charging current will be around 25A, which is a 0.25C charge rate. If you consider the DCS 12V 100Ah Lithium battery it can be charged at up to 70A which is a 0.70C charge rate. This means you no longer need to consider DC-DC chargers as you can connect our batteries directly to high power charging devices such as suitable alternators, or large buck boosters. For example our popular dual 90Ah battery system for boats and 4WD vehicles, can be connected to alternators up to 160A.

Because our batteries are internally voltage regulated and because our BMS has such a high sustainable peak discharge current they will do an amazing job of equalising very quickly.

The BMS will emergency open circuit the battery terminals to protect the cells. This means there is no longer any resistance in the system. The BMS needs a 12V supply with at least 1A of current to release and wakeup from a cell emergency protection state.

Most mains chargers with a lithium profile will do a slow recovery charge as will most solar regulators. Some chargers on the market today that are advertised as ‘lithium’ compatible still don’t have the firmware to do a slow recovery charge to release BMS’s. If you have a charger that will not wakeup the BMS, easiest way to wake it up is to connect a unregulated solar panel directly to the battery terminals, ensure all loads are disconnected before you do this. Having said that every system should have a suitable low cut off voltage to shutdown loads/accessories so that the batteries are not fully drained.

"Batteries cannot be left flat/empty, if the low voltage cutoff is triggered the battery pack should be fully charged as soon as possible. If access to a suitable charger is not possible, disconnect all loads from the battery terminals. The warranty will be void if the battery pack has been left in a low voltage cutoff state for longer than 14 days."

Most important thing is to isolate everything from the battery terminals, as cables/loads connected to the terminals causes more power drain as the FET gates have to remain closed to cull the accessory standby loads connected to the battery pack + offset BMS standby power consumption.

Use the following settings:

Charged voltage 14.0V
Tail current 4%
Charged detection time 1min
Peukert 1.05
Charge efficiency 98%
Current threshold 0.1A
C rates: refer to the battery pack capacity

Fully charge to 100% isolate everything from the terminals and leave for max 3 months and then cycle (fully discharge and fully charge) and leave again for 3 months etc…. Minimum 4 cycles per year to not effect the cells capacity.

The reason many factory batteries fall over after 9/12 months is because modern/smart alternators typically drop the alternators voltage output to 13.5/13.6V. This voltage is not high enough to charge wet/calcium/lead acid batteries so from the getgo they are destined to fail prematurely. They are typically under charged to around ~80%SOC at these voltages.

So what happens when DCS Hybrid batteries are connected to smart alternators? Exactly the same thing they get charged to around the same 80%SOC. However because LFP has no memory effect that's perfectly fine. By only charging to 80% you are further improving the service life of our batteries. It's no not necessary to charge our batteries over 80%SOC. The only advantage is that you give the BMS a chance to detect full charge voltage and calibrate the SOC readout. So try to plug into mains once a week to fully charge your batteries, especially if your not running any fixed solar supply.

All DCS 12V cylindrical cell packs can be charged as follows:

Bulk: 14.4V
Float: 13.5V

The DCS 12V 180Ah Auxiliary prismatic cell packs (SKU: DCS-12V-180Ah) need to be charged as follows:

Bulk: 14.2V
Float: 13.5V

When the battery pack is discharged down to 11.50V the BMS resets to 0%SOC and now is placed in a relearning state - the pack must be fully charged continuously without stopping to calibrate again. Charge it on a mains charger to 14.60V.

Depending on the usage pattern, best to fully cycle the batteries once every 3 months to give the cells a refresh. To fully cycle a 12V pack discharge to 11.50V and charge to 14.60V.

BMS & CMS

Here at DCS, designing lithium batteries is not only our bread and butter, but we love this safe, stable, robust, and high-performance cell chemistry so much that we decided to develop our own range of Battery and Cell Management Systems in 2015.

DCS Battery Management System:

What was the objective? Well, the reason we embarked on this project was that all the basic Chinese designed BMS’s are just protection boards, and it is hard to call them a BMS when they don’t do any cell balancing or provide any means of programmability for various parameters and cell control. A lot of Battery Management Systems that we have tested were using inferior PCB engineering design techniques and poor components. That means continuous performance above 100A was more or less impossible, and reliability was also questionable when pushing above 100A with those Battery Management Systems.

Our key BMS objective was to develop a high-performance 200A BMS that could do;

  • 200A continuous operations using high-quality components
  • To have a minimal increase in temperature at peak output current (as these circuit boards are installed inside battery packs, limiting internal heat build-up that is crucial for the longevity of the battery cells).
  • Designed for engine cranking applications, it has to deliver a minimum of 1200LCA’s for 10 seconds (because of the limited voltage drop with suitable lithium cells, it’s very easy to crank over modern engines. Most engines will start in under 1sec, so 10 seconds is plenty). CCA’s don’t apply to lithium batteries as this standard was developed for lead-acid batteries and needed to deliver 30 secs of cranking amps. When a lithium battery is controlled via a BMS, the correct terminology is LCA = Lithium Cranking Amps based on delivering 10 secs of cranking amps.
  • Suitable for high temperatures applications, e.g. engine compartments. It will be stable up to 180 degrees C.
  • Bluetooth and WiFi connectivity in order to develop a comprehensive app platform
  • Pass MIL vibration testing standards (to open up the development of batteries for just about any application).

In a nutshell, the design needed to be tough and reliable for those who use them in the field with no room for error. The construction materials, coating and surfaces, assembly techniques are critical in designing a reliable system. After submitting our brief to all major leading manufacturers in Europe, Japan, USA and Korea, we assessed their expertise and ended up working with a leading and well known Japanese semiconductor manufacturer.

This is a typical Chinese 100A 4S BMS design

This is the DCS 4S 200A BMS

After three years of development, in early 2018, we were satisfied with the circuit board stress testing and released the first batch of our newly developed BMS’s right across our entire 4S (12V) & 16S (48V) battery range. At the same time, we hired an app development team to start working on the software integration to launch our first app platform. The first GEN1 BLE DCS BMS’s that featured Bluetooth chips were launched in OCT 2019. The app platform required a lot of tweaking both on the hardware and software front, and our GEN2 BMS’s were released in mid-2020 along with a more stable app platform with a new design scheme. Our latest GEN3 BLE BMS’s had been released in JAN 2021. The accuracy and stability of the DCS LFP App monitoring system is now very mature and refined. Some additional features had been added along with the ability to create custom battery names. We can produce our DCS BMS technology in any continuous rating range from 10A to 200A with our comprehensive BLE DCS LFP App platform.

DCS Cell Management System:

Having developed such an industry-leading and reliable BMS, it made no sense to combine the cell balancing system together with the BMS. So with our many years of experience in designing and maintaining lithium batteries, we have developed a stand-alone CMS to compliment our BMS. CMS? What? OK, so there are two ‘theories’ of cell balancing in the lithium world passive and active. Passive balancing is a cheap inferior method of cell management as it can burn resistors in an attempt to bleed cell strings. In contrast, active cell balancing is a more complex and efficient balancing technique that redistributes charge between battery cells during the charge and discharge cycles.

Passive balancing has two fundamental setbacks;

  1. Heat: We don’t want unnecessary heat build-up inside a battery pack. The less internal heat, the lesser the impact on the battery cells over time
  2. Resistors have a limited service life, and once they fail game over, you have no cell management. But more importantly, they can fail in such a way in which they will keep drawing power and eventually destroy the cells.

Active balancing is the only way to manage lithium cells correctly. There are many ways to design an integrated circuit (IC) to actively manage cell strings. At DCS, we have tested well over 10 different methods of active balancing IC’s over the years and, in the end, again decided to develop our own active management circuit boards with the best-combined techniques based on our stress testing. Our in house PCB design engineer Max, designed our circuit boards to again meet the following criteria:

  • High current movement (our latest boards now achieve 3.7A dynamic movement per channel)
  • Thermal management to ensure the boards remain reliable in harsh environments
  • Be able to withstand maximum current and thermal loads to ensure long term reliability
  • Fail-safe design, if any component fails, it won’t compromise the battery pack (not consume power from the battery cells)

This is the DCS 16 channel CMS

There are, of course, some other software features and parameters, which we can’t disclose on this page to the public, as well as some very fancy hardware. But what our latest 04 channel and 16 channel CMS’s do is they can easily manage up to 1000Ah battery banks. So, for example, if you wanted to use our 16 channel CMS’s you could run a 51.2V 1000Ah single battery pack, which would be 51.2kWh in size! The DCS 15kWh batteries are just shy of 300Ah in capacity, so one can only imagine the tight CMS control these batteries are under, and that’s why we back them with a 10 year / 80% capacity warranty.

The DCS 16 channel 59.2A active cell balancing system is so powerful that it will change the battery storage market forever. With this system, the lithium market will continue to dominate for the foreseeable future. Of course, all DCS batteries now feature both our BMS & CMS circuit boards.

We design all our own PCB hardware and the circuit boards are tested to withstand a minimum of 10 years of severe abuse. This video is the MIL-STD 810G Method 514.6 which includes 4 procedures for different modes of vibration.

How to wire batteries correctly

Battery Tray

Looking for a sturdy mount to secure your new 200Ah DCS battery in an upright position?

Click Here for more information on our stainless steel lazer cut battery trays....

8
CELL SAFETY INFO - Why LiFePO4 (LFP)?

Lithium Ferrophosphate (LFP) is a flame retardant, stable, safe and proven cell chemistry that has a very good energy density around 325 Wh/L. This cell chemistry can be engineered for various applications by adjusting the ratio of elements to provide high performance characteristics. E.g. the DCS marine battery range runs 2C cells, which means our little 75Ah battery will discharge comfortably at 75Ah x 2C = 150A. The DCS 80Ah Extreme runs 10C cells which means the 80A can comfortably discharge at 80Ah x 10C = 800A but is of course limited to lower currents due the the Battery Management System.

LFP also has very good cycling durability between 2,000 ~ 12,000 cycles can be achieved depending on how well the cells are managed, and the lowest rate of capacity loss (aka greater calendar-life) compared to other lithium cell chemistries.

WHY YOU CANNOT USE A VSR BETWEEN TWO DIFFERENT BATTERIES CAPACITIES & CHEMISTRIES?

Battery cells are simply a bunch of resistors with the ability to store energy. A 100Ah battery pack has a different resistance characteristic compared to a 50Ah battery pack, that theoretical difference in resistance is 2:1. So if you connect a 100Ah battery in parallel to a 50Ah battery there is no way for these two batteries to equalise and therefore you can’t charge them correctly. So for example connecting a 60Ah calcium starting battery to a 120Ah AGM via a VSR (Voltage Sensing Relay) you cannot charge both batteries correctly and from that day onwards you are prematurely destroying both battery packs. Same theory applies with lithium’s it’s still a battery pack.

What’s the solution? A DC-DC charger, you now have a permanent point of isolation (meaning that both batteries are never connected to each other in parallel). The DC-DC charger takes the surplus power from battery A (engine) and chargers battery B (aux/house). This device now allows any battery capacity and or chemistry to be used.

What if both batteries are the same, can I run a VSR between exactly the same two batteries?

Yes you can, but lithium’s have a different voltage curve, so you would still need to use a programmable VSR to dial them in correctly. However these devices draw a lot of power when engaged to so it’s best to run the two batteries in parallel and run a load disconnect instead of a VSR.

The advantages of the lithium battery cell chemistry

Lithium battery cells have a super low resistance so are very easy to charge and very efficient. This level of efficiency means you can charge them at very high C rates. For example if you look at the charge rate of a 100Ah AGM battery the recommended charging current will be around 25A, which is a 0.25C charge rate. If you consider the DCS 12V 100Ah Lithium battery it can be charged at up to 70A which is a 0.70C charge rate. This means you no longer need to consider DC-DC chargers as you can connect our batteries directly to high power charging devices such as suitable alternators, or large buck boosters. For example our popular dual 90Ah battery system for boats and 4WD vehicles, can be connected to alternators up to 160A.

WHY CAN DCS BATTERIES BE CONNECTED IN PARALLEL WITHOUT ANY EXTERNAL COMMUNICATION SYSTEM?

Because our batteries are internally voltage regulated and because our BMS has such a high sustainable peak discharge current they will do an amazing job of equalising very quickly.

WHAT HAPPENS IF I FULLY DISCHARGE MY BATTERY TO EMPTY?

The BMS will open circuit the battery terminals to protect the cells. This means there is no longer any resistance in the system. The BMS needs a 12V signal with at least 1A of current to release and wakeup from a cell protection state. Most mains chargers with a lithium profile will do a slow recovery charge as will most solar regulators. Some chargers in the market today that are advertised as ‘lithium’ compatible still don’t have the firmware to do a slow recovery charge to release BMS’s. If you have a charger that will not wakeup the BMS, easiest way to wake it up is to connect a unregulated solar panel directly to the battery terminals, ensure all loads are disconnected before you do this. Having said that every system should have a suitable low cut off voltage to shutdown loads/accessories so that the batteries are not fully drained.

BATTERY MONITOR SETTINGS

Use the following settings:

Charged voltage 14.0V
Tail current 4%
Charged detection time 1min
Peukert 1.05
Charge efficiency 98%
Current threshold 0.1A
C rates: refer to the battery pack capacity

What is the best state/charge to store these batteries ?

Fully charge to 100% isolate everything from the terminals and leave for max 3 months and then cycle (fully discharge and fully charge) and leave again for 3 months etc…. Minimum 4 cycles per year to not effect the cells capacity.