The **Felicity Solar 17.5kWh 51.2 Lithium Battery** is a **LiFePO4** battery that has a nominal voltage of **51.2V** and a usable capacity of **17.5kWh** ¹. It is designed for solar system solutions and has a built-in Battery Management System (BMS) that monitors its operation and prevents the battery from operating outside designed limitations ¹. The battery can be easily expanded by adding more battery packs in parallel connection ¹. It has a high energy density and smaller volume ¹. The battery has a long life guaranteed with deep cycles and can be cycled more than **6000 times** with a depth of discharge (DOD) of **95%** ¹.