Get in contact! 

Use the form on the right to send us an email OR phone sales on 1300 795 327. 

46 Main Western Road
Tamborine Mountain, QLD 4272
Tel: 1300-795-327 (Sales)

Technical Support +61 420 684 092

Monday – Friday 8:00am – 5pm
Saturday 8.00am – 1pm

46 Main Western Road
North Tamborine, QLD, 4272

1300 797 327

Deep Cycle Systems is a Lithium Battery manufacturer supplying battery storage systems for marine, recreational vehicles and the renewable energy sector.  

27 Series Deep Cycle Battery

Update your group 27 deep cycle battery with the best

Deep Cycle Systems are leading manufacturers of deep cycle batteries and should be your first choice when it’s time to update or replace your 27 series deep cycle battery.

A group 27 deep cycle battery from our range provides you with extra power, greater reliability and much more durability than conventional AGM, Gel or other lead acid batteries for use in any application. The lithium ion technology incorporated in our batteries can last up to 5,000 cycles and has tremendous advantages in weight, performance and service life.

The Battery Council International, or BCI, classifies a 27 series deep cycle battery as having characteristic external dimensions, measured from case end to case end, of 306mm (length) x 174mm (width) x 237 mm (height). This classification does not determine the Amp Hours (AH) rating for the batteries, but there is usually a correlation between case size and AH rating. In other words, the larger the size of the battery case, the more capacity the battery will be expected to have.

If you are in the market for a group 27 deep cycle battery as a replacement or upgrade, then our DCS 100 Ah battery could be the best choice for you. The DCS 100 has external dimensions of 328mm (length) x 171mm (width) x 215 mm (height) which means that it can slot into most spaces occupied by a traditional 27 series deep cycle battery.

Our range of high capacity 12 volt deep cycle batteries are all backed by a 3 year replacement warranty.

Contact Us for the Best in Deep Cycle Batteries

For free delivery to all major cities in Australia, you can call us on 1300 795 327 or you can send an email to or use our website contact form. We  look forward to being able to help you with the best quality and value in deep cycle batteries.