RV Lithium Battery

$3,650.00$5,100.00 inc. GST

Power your RV with our cutting-edge lithium auxiliary batteries. Available in 3 capacities: 400Ah, 550Ah and 620Ah – delivering unparalleled performance in the most compact size.

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Custom Lithium are Proudly Australian-Made Certified

Our auxiliary battery systems are Australian-Made certified meaning you’re supporting Australian jobs and help drive innovation & manufacturing in Australia.

POWERING YOUR PATH

POWERING YOUR...

WIFI
Power Outlet
Fridge
Coffee Machine
Cooking Utilities
Kettle

TECH SPECS & SIZE

Continuous BMS AMPs
Continuous 380AMPs All size capacities
Standard and Max Charge Current
100AMP Standard, 200AMP Max All size capacities
Discharge Overcurrent Protection
1,800 AMP Protection All size capacities
Dimensions (mm)
400 Ah 450 Ah 550 Ah 620 Ah
400 x 235 x 260 405 x 310 x 260
Weight (Kg)
400 Ah 450 Ah 550 Ah 620 Ah
35 kg 50 kg
Operating Temp
-20°C – 60°C All size capacities
Terminals
M10 terminals All size capacities
Charge Voltage
14.2v – 14.6v All size capacities
Absorption/float
13.4v – 13.6v All size capacities
Cut off voltage
10.5v All size capacities

Australian Made

Made in Brisbane, you can depend on our top-notch quality and rugged performance.

Designed by Enthusiasts

Designed by our team of camping and caravanning enthusiasts, our auxiliary battery systems are perfect to power your adventure.

COMPLETE YOUR SETUP

POWERING YOUR PATH

LASTING POWER FOR WHEREVER YOUR GOING

When equipped with the lasting power of a Custom Lithium RV battery, you can journey further and stay powered for longer. Satellite wifi, cooking appliances, kettle, fridge – have it all & more!

RV BATTERY COMPLIANCE KIT

Custom Lithium AU/NZ Regulations Lithium Compliance Kit to suit RV Range of Battery.

Add it now for $550

$550.00 inc. GSTSelect options This product has multiple variants. The options may be chosen on the product page

RV & CARAVAN LITHIUM BATTERY FAQS

What settings does my shunt require to read my battery correctly?

Please refer to the screenshot above. The only thing that will vary is the battery capacity.
Shunt battery settings app screenshot

Can I swap my caravan's AGM battery for a lithium one?

Replacing your AGM battery with a lithium battery ultimately depends on your charger because AGM and lithium batteries operate on different charging cycles and chemistries. While lithium batteries are lighter, more efficient and offer a longer lifespan, they require precise charging to ensure safety and prevent overcharging.

Meaning you cannot necessarily make a direct swap of an AGM battery to lithium without first checking your existing equipment. Review your existing chargers and other equipment manuals to confirm lithium battery compatibility. Be sure to check for lithium support in your DC-DC charger, solar charge controller, and 240V charger, among other equipment to ensure a smooth and safe transition.

What orientation can my battery be mounted?

Our RV & Caravan Batteries can be mounted on their base, side or the non-terminal end. As long as the terminals are not facing down.

Are Custom Lithium RV batteries IEC-62619 certified?

All Custom Lithium batteries are made with high quality IEC 62619 certified components and meet the AS/NZS 3001 recommendations.

Additional information

Weight 36 kg
Dimensions 403 × 234 × 260 mm
Capacity Size

RV 400, RV 450, RV 550, RV 620