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Dispatched every Monday and Thursday with next-day delivery
Contact us for advice
Manufacturers warranty comes with every item purchased
Powers heavy 12V loads and inverters with 3,840Wh of usable off-grid energy. This advanced lithium leisure battery includes a robust 300A Smart BMS and automatic self-heating for efficient cold-weather charging. Integrated Bluetooth connectivity allows easy real-time monitoring of battery metrics via a smartphone app. If you require substantial power reserves for extended off-grid travel without constant mains hook-ups, this high-output model is the ideal solution.
Delivers true multi-day power autonomy, allowing off-grid campervan users to run high-draw appliances without firing up a generator or searching for hookups.
Capable of sustaining 300A continuous current while actively equalising cell charges to maximize usable lifespan and prevent cell drift over thousands of cycles.
Built-in heating pads warm the cells to 5°C automatically before allowing charge current when ambient temperatures drop below freezing.
Live Bluetooth monitoring displays exact SOC percentage, individual cell voltages, temperature, and charge/discharge currents on your smartphone.
Based on the System Builder’s appliance power and daily-use settings, with a 300Ah × 12.8V = 3840Wh lithium battery. Each tile shows one load on its own, with no solar or alternator charging; no reserve or losses are deducted. Real mixed-use runtime will be shorter.
~12.0 days
40W × 8h/day = 320Wh/day~96.0 days
8W × 5h/day = 40Wh/day~96.0 days
20W × 2h/day = 40Wh/day~42.7 days
30W × 3h/day = 90Wh/day~54.5 days
8.8W × 8h/day = 70.4Wh/day~256.0 days
60W × 0.25h/day = 15Wh/dayPerfect 3000VA inverter charger pairing for high-capacity lithium leisure battery setups.
Rapid alternator charging while driving to quickly replenish 300Ah storage.
Dedicated AC-to-DC mains leisure battery charger for shore power recharging.