Product name:3.2V 20Ah LiFePO4 Battery Model: JOY-3.2V-20Ah Capacity: 20Ah (Standard discharge(0.2C C5A) after Standard charge) Nominal Voltage :3.2V (Mean Operation Voltage During Standard Discharge After Standard Charge) Over discharge protection voltage:2.3V±0.05V (Discharge Cut-off Voltage) The overcharge protection voltage: 3.6V±0.05V (Charging voltage) AC (1KHz) Impedance New Cell Max.(mΩ):≤ 8 mΩ Maximum Continuous Charge Current:≤20A Maximum Continuous Discharge Current:≤20A Maximum Pulse discharge current:≤60A eration Temperature Range:Charge: 0~45℃,Discharge: -20~60℃; Storage Temperature Range:Less than 1 year: -20~25℃,less than 3 months: -20~40℃; Storage Temperature Range:Less than 30 Days: -25℃~45℃,less than 90 Days: -25℃~30℃; Weight: 560g ycle Characteristic:2000 times(100% DOD, the residual capacity is no less than 80% of rated capacity at 0.5C rate.) Cell Dimension:Length: Max.225mm,Width: Max.155mm,Thickness: Max. 9 mm