Warranty, Shipping & Return Policies

Privacy Policy
What confidential information is collected? (name, email, phone number, address etc)
Minimum info is collected so that we are able to deliver your order.

Is this information collected just for the purposes of providing and delivering the order etc?
It’s just only requested so that we can deliver the orders.

Do you pass these details on to any third parties?
We don’t pass any details onto any third parties.

Credit card transactions are processed securely and no card details stored.
We don’t store any card details.

Placing orders:
Deep Cycle Systems is dedicated in providing the best products and service possible. Use the following information to help you through the buying & ordering process.

All residential deliveries have automatic ATL (Authority To Leave) so that we are not charged by the couriers for redelivery fees should someone not be home at the time of delivery. Courier drivers will leave deliveries in safe locations if no one is home. If you consider your residential address not safe for deliveries please put in the order notes ‘Do Not Leave Goods Unattended’.

Order Placement:
We encourage you to place your orders via our secure online ordering system. That way we can ensure the best possible prices and fastest turnaround.

Method of Payment:
Credit cards: Visa Or Mastercards, 128 bit SSL encryption 100% Safety Guarantee via PayPal secure gateway.

•EFT (Electronic Fund Transfer): simply select this payment method during the ordering process and you can then log into your personal online banking to do the EFT our banking details below:

Bank: Westpac

BSB: 034 635

ACC: 452137

Reference: please note your “order number”.

Return Policy
Return Process

If (a) you change your mind within 30 days of shipment from us; or (b) upon delivery you discover that a product has any defects or is broken or damaged (“DOA”); or (c) after correctly installing and using your product you think it is defective, then please email us immediately – info@deepcyclesystems.com.au and we will be in touch.
We might require you to take photos of the product and email them to us. If you believe your product is not-working properly or might be defective we might require you to undertake some tests and email us information to enable us to assess the product, this might include charging and discharging batteries, providing us with voltage readings and screenshots from our companion diagnostic App (available for download from the Apple App Store and Google Play Store). We will then promptly assess the product and advise you if we believe it is defective, broken or damaged or accept your change of mind request and if so we will authorise you to return it to us (“Return Authorisation”).

You are responsible for the cost of shipping the product back to us. We will pay for the cost of shipping an exchanged or repaired product back to you. If shipping to or from outside Australia, then you are responsible for the cost of shipping, including any insurances, taxes, duties or customs. These costs are not refundable by us.
We recommend that you obtain proof of postage to track your return as we cannot accept responsibility for items lost in transit. Please contact your delivery provider to locate your parcel.

You must provide us with your proof of purchase (e.g. your receipt, online tax invoice, credit card or bank statements). Any refund will be provided via the same method of payment as the original purchase.

Installation instructions on how to use and or install your product(s) are documented on each product page on our website. Be sure to read these instructions carefully before installing or operating your product(s), as we cannot accept returns or provide repairs, refunds or exchanges because of your or your installer’s acts, omissions, misuse or negligence.

Change of mind and DOA

If we provide you with a Return Authorisation because you change your mind, or the product is DOA then we will provide you with your choice of a product exchange or a full refund (less any restocking fee, shipping, taxes, duties or customs fees). However, we cannot accept the return of used items if you change your mind or the product is DOA.
You must return your unused and unaltered product(s) in its original packaging with all inclusions. Products returned after 7 days of shipment from us will incur a restocking fee equal to 20% of the products price, which will be deducted from any refund or charged to you upon exchange. After 30 days of shipment from us returns will not be accepted by us if you change your mind or you allege it is DOA.

Defective Products

Our products are guaranteed against defects for various periods as described on each products webpage.
If we provide you with a Return Authorisation because the product is defective then we will either repair or exchange the product or provide you with refund (less any shipping, taxes, duties or customs fees).
Despite the foregoing, our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.

Battery Warranty Periods:

Refer to the battery product specification table for the warranty period, this period is valid from the date of shipment.

For example the DCS 12V 120Ah battery pack: https://www.deepcyclesystems.com.au/product/dcs-12v-120ah-lithium-ion/

– Has a 4 year warranty for normal installation applications

– 3 years when installed inside engine bays or engine compartments

– Any warranty items must be returned to DCS first for assessment, DCS with either repair or replace the defective product(s).


Warranty only applies to the original owner.

The warranty is invalid if the battery has been subject to misuse, abuse or physical damage.

The warranty is invalid if the battery is not used in accordance to the specifications as stated for the product.

The battery will be determined to be defective if it fails to deliver less than 80% of it’s rated capacity during the warranty period for normal installations. The battery will be determined to be defective if it fails to deliver less than 70% of it’s rated capacity during the warranty period when installed inside engine bays or engine compartments.

The residual battery capacity is determined by:

Fully discharging the battery to 11.50V and fully charging it back to 14.60V.

The batteries should be paired with a suitable designated charger with the correct settings (LiFePO4 profile) and Voltage / Current limitations as indicated in the specification table. Incorrect selection of charger and/or failure to follow the correct charging regimen will void the warranty.

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.

Policy last updated 14th JUNE 2021.