ITEM NAME:13S 48V 15A Li-Ion Lipolymer Battery Protection Board BMS PCB Board with He L2Q1 13S 48V 15A Li-Ion Lipolymer Battery Protection Board BMS PCB Board with He L2Q1 Continuous Discharge Current: 15A Instantaneous discharge current:150A Charging voltage: 54.6V Maximum charging current: 15A Overcharge detection voltage: 4.25Â ±0.025V Overcharge protection delay: 100ms Overcharge release voltage: 4.15Â ±0.05V Overcharge detection voltage: 4.2Â ±0.025V Overdischarge detection voltage: 2.80Â ±0.08V Overdischarge detection delay: 50ms Overdischarge release voltage: 2.9Â ±0.1V Overcurrent detection voltage: 150mV Overcurrent detection delay: 10ms Overcurrent protection current: 75Â ±5A Overcurrent protection release.Maximum charging current: 15A. Short circuit protection condition: external load short circuit. Short circuit protection release condition: disconnect load. Main circuit conduction internal resistance: less than equal 15mÃŽ ©.