The Relion 300 RB300 is a 12V, 300Ah lithium deep cycle battery. It’s only 82 lbs for a true 300 Amp Hour lithium battery that provides 100% of its rated capacity.

The RB300 gives you the flexibility to replace several small, heavier lead-acid batteries in a single high capacity unit. This unit is perfect for large sailboats that have high power demands.

All RELiON Batteries use the safest and most stable components, including a LiFePO4 cathode and a built-in Battery Management System (BMS). The BMS ensures a long lifetime, safe handling – and high-accuracy State of Charge (SOC) calculations.

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