ExSolar supplies high-performance Sinotech LiFePO4 batteries, the premium alternative to lead-acid. Featuring 20x longer lifespan, 40% lighter weight, and double the power output, these maintenance-free batteries operate reliably from -20°C to 60°C. Superior Safety: Lithium Iron Phosphate chemistry eliminates the risk of explosion or combustion due to high impact, overcharging or short circuit situation