FT4850E 48V 50Ah LiFePO4 battery pack for solar storage system S/N Details Parameters Remarks 1 Nominal voltage 51.2V Mean Operation Voltage 2 Rated capacity Typical 50Ah Standard discharge（0.2C） after standard charge Minimum 49Ah 3 Charge Charge voltage 58.4±0.2V Charge Moe 0.2C to 58.4V, then 58.4V to 0.02C (CC/CV) Standard Charge current 10A Max charge current 25A Charge cut-off voltage 58.4±0.2V Recommended float charge voltage ( for standby use) 55.2±0.1V 4 Discharge Standard discharge current 10A Max continuous discharge current 30A Max. Pulse current 50 (＜30S) Discharge Cut-off voltage 32V 5 Cycle life ≥ 2000 cycles  0.2C 100% DOD 6 Operation Temperature Range Charge：0~45℃ 60±25%R.H. Bare Cell Discharge：-20~60℃ 7 Storage Temperature Range 0~35℃ 60±25%R.H.  at the shipment state 8 Weight Approx: 25kg 9 Size 420 x 130 x 320mm 10 Plastic Case ABS