... , PCB, BMS, charger, Solar energy system storage battery, Start battery, backup/standby power, EV/HEV backup battery, E-bike/E-scooter battery, storage batter. Li-ion rechargeable energy ... single cell: 2.0VOver-charge protection voltage for single cell:3.9VMax. continuous working current: 15AOver discharge current protection:40AShort circuit ...