SAKO 5.12kWh 51.2V 100Ah LiFePO4 Lithium Battery is a reliable energy-storage solution for solar systems, home backup, UPS and off-grid applications. It uses Lithium Iron Phosphate (LiFePO4) cells with a nominal capacity of 5.12kWh (5120Wh). Nominal voltage is 51.2V, with an operating voltage range of 44.8–58.4VDC. Charging voltage is 56.0–57.6VDC, maximum charge current is 50A and maximum discharge current is 100A. It delivers over 6000 cycles under the specified test conditions (25°C, 0.2C, 100% DOD). IP20 protection and an operating temperature range of -10°C to +50°C make it suitable for reliable indoor energy storage. 5-year warranty.