Nominal Voltage 12.8V Nominal Capacity 64Ah (820WH) Standard Continuous Charge Current 12.8A Maximum Continuous Charge Current 50A Standard Continuous Discharge Current 50A Maximum Continuous Discharge Current 80A Working Voltage Range 9.6 - 14.6V Standard Charging Method CCCV Overcharge Protection Threshold 3.80V/cell Over Discharge Protection Threshold 2.20V/cell Over Discharge Current Protection About 160A Balance Start Voltage/Balance Current 3.45V/50mA Short Circuit Current Protection Function OK Over Temperature Protection Discharge 65±5°C Communication Protocol /// Dimension 305x220x56 mm Cycle Life 1500 cycles 80% PACK Assembly Way PVC Charge/Discharge Output Type wire Type of Output Wire 10# 2Red2Black Output Wire Length 300 ± 20mm Product Weight About 6.8kg Charging Temperature 0 - 45°C Discharging Temperature -20 - 55°C Storage Temperature 1 month -10°C to 50°C Storage Temperature 3 months 0°C to 30°C Storage Temperature 1 year 20°C to 25°C Relative Humidity for Storage 5% to 95% RH Cell Certification UL1973, UL1642 Quality Assurance Period 3 years Show More