Lithium-Ion Battery 16.8V 53.3A

16.8 V 55 Ah lithium battery — our best seller

792 Wh in barely 4.2 kg (26 × 20 × 14 cm). The 16.8 V is the acclaimed benchmark: its higher voltage unlocks extra torque for bow-mount motors and improves the efficiency of your electronics.

Who is this battery for?

Ideal for float tube and for 16.8 V-compatible bow-mount motors. It also powers a fishfinder or a live sonar (LiveScope, ActiveTarget) with better efficiency than a 12 V — these modules accept up to 32 V.

Featherweight: LIFE lithium vs lead-acid

For the same truly usable energy, an equivalent lead-acid battery would weigh ~32 kg and take up ~12 L (lead-acid only cleanly delivers ~50% of its capacity). The 16.8 V 55 Ah weighs only 4.2 kg for 26 × 20 × 14 cm: around 8× lighter, with no compromise on runtime.

What's inside

• 40 premium LG 21700 lithium-ion cells — 792 Wh, 55 Ah guaranteed, ≥ 500 cycles.
• Smart BMS: permanent protection against overcharge, deep discharge, short circuit and overheating.
• Waterproof shock-resistant case with built-in monitoring screen (voltage, remaining charge, consumption).
• 4S configuration, 16.8 V, up to 1,440 W of power — available in 7 finishes.

The LIFE differentiator: Bluetooth and supervision app

Beyond the built-in screen, the battery connects via Bluetooth to the LIFE app: state of health, real runtime and instantaneous consumption, straight on your smartphone. It's the Apple of lithium — nothing to configure, everything is factory-calibrated.

French manufacturing and warranty

Designed and assembled in France by LIFE (Lithium Innovation French Engineering), each battery is tested individually before shipping and covered by our 36-month manufacturer warranty. Premium lithium, Made in France.