This lithium-ion 12VDC 12Ah battery is compact, but powerful. RB12 is a deep cycle lithium iron phosphate (LiFePO4) battery. In comparison to lead-acid alternatives, it is twice as powerful, weighs half as much, and lasts a lot longer. You'll have just the right amount of juice from this potent lithium battery for all-day outdoor activities like fishing. It is frequently used in the following fields: robots, remote power, UPS, security backup systems, telecommunications, ice fishing, flashers and marine gadgets, camping, scooters, solar and emergency lights.