Quality lithium battery at a fair price. With a flat discharge curve that maintains above 12V for up to 95% of capacity consumption, LiFePO4 batteries provide enormous run-time increases compared to Lead Acid batteries, which only achieve 50% of that. The lithium battery has a special Battery Management System (BMS) integrated into it that guards against overcharging, deep discharging, overloading, overheating, short-circuiting, and excessively low self-discharge rates, allowing for up to a year of maintenance-free storage. compared to 200–500 cycles and a three-year lifespan in conventional lead acid chemistry offers 2500–7000 cycles and a ten-year lifetime. PROS🟢 Astronomical boosts in run-time Overcharge and overheating protection CONS🔴 Large and heavy