The Felicity 8.7 kWh 48 V lithium battery is a high-performance energy storage unit engineered for solar or backup power systems. Using LiFePOâ‚„ (lithium iron phosphate) chemistry, it offers long cycle life (often 5+ years warranty), high efficiency, and minimal maintenance. The battery typically features a built-in BMS (Battery Management System) that protects against overcharge, overdischarge, temperature extremes and ensures safe usage.