The item shown is a Hzsolar 7.68kWh 25.6V Rechargeable LiFePO4 Battery. Type: Lithium Iron Phosphate (LiFePO4) Nominal Voltage: \(25.6\text{V}\) Rated Capacity: \(300\text{Ah}\) (\(7.68\text{kWh}\) usable energy) Max Current: \(100\text{A}\) Safety Warning: Contains high voltage inside; risk of electric shock and fire.