... -in automatic protection for cell over/under voltage, pack over/under voltage, charge/discharge over-current, short circuit, and over temperature.2.Support pre-charging ... .Maintenance free6.Optional SMBus communication interface to monitor cell voltage, current, temperature, SOC, etc. electric scooter battery Item 48V60AHConfiguration4S1P12V60AhVoltage59.2VNominal Capacity ...