48V-30Ah Base Station Batteries Model: TP-4830T 48V 30Ah Base Station Battery Nominal Voltage: 48V Nominal Capacity: 30Ah Nominal Energy: 1440Wh Max Continuous Discharge: 30A Built-in BMS: Yes (Over-voltage, over-current, short circuit, temperature protection) https://www.topakpowertech.com/base-station-backup-battery/base-station-batteries