Lithium Battery - 20 AH 12V - Deep Cycle

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Fusion Lithium Batteries delivers safe lithium phosphate energy storage solutions in standard lead-acid battery sizes for a wide variety of applications. They are designed as a direct drop-in replacement for similar sized lead-acid batteries offering twice the run-time and less than half the weight.

Fusion Lithium Ion Phosphate Batteries (also known as Lithium Iron Phosphate Batteries) are an extremely light weight battery designed for deep-cycle (cyclic) applications and are a completely dry battery making them spill-proof and leak- proof. They can sit unused for over a year without losing charge and can also be charged extremely quickly without damaging the battery.

Unlike many other lithium batteries, Fusion Lithium Batteries are made using prismatic cells making them not only safe to use, but also boasts better cyclic properties and have a longer life (over 10 year design life). Other brands generally use cylindrical cells and while they may be cheaper due to lower manufacturing costs, they are inferior and are not designed for 12V battery application.

Fusion Lithium Batteries is the Pioneer of 12V lithium deep-cycle batteries in Australia. We were the first and we are the best. We have been researching, testing and using 12V lithium batteries for deep-cycle and starting applications for over 5 years. We have also purchased and tested almost every other major brand of 12V lithium batteries from around the world and have designed Fusion Lithium Batteries to be more superior in every aspect. Basically, our lithium batteries are the most powerful and lightest 12V lithium batteries in the world.

Fusion Lithium Batteries are also one of the only Lithium Batteries that can be charged using normal 12V car chargers/ lead-acid battery chargers / alternators. Fusion Lithium Batteries are also 100% organic, fully recyclable and pollution free, making them an excellent green energy source. All Fusion Lithium Batteries come with a true industry leading full 3 Year Warranty and are manufactured to International Quality Assurance Standard ISO9001.


A Lead Acid charger can be used as long as it doesn't have Auto Pulse or Auto Rejuvenation/Desulfation feature.
If you using a Lithium charger then it should have LifePO4
Trickle chargers (Float mode) are fine to use. Solar panels can also be used to charge the battery.

The battery last, approx 2 hours on 30LB motor and appox 1.5 hours on a 54LB motor, on a medium speed setting. 

The Cyclic Life of Fusion Lithium Batteries is as follows:

LEVEL OF DISCHARGE                                 CYCLE LIFE
100% DOD (Depth of Discharge)                    1,740 Cycles
30% DOD (Depth of Discharge)                      8,000 Cycles

BATTERY TYPE Lithium - Deep Cycle
VOLTAGE 12 Volts
Length 181mm
Width 77mm
Height 167mm
Terminal Height 167mm
Terminal Type T12
PLATE TYPE Prismatic Cell Deep-Cycle
USAGE Stand By Private use
WARRANTY 36 Months

Important Notes:

This battery is not suitable for vehicle starting – use for deep cycle applications only.

Pick Up Only from Newcastle and Sydney


SKU K2F-Lithium-Battery-20