* 48V 28Ah Lithium Li-ion Battery Pack is made of 14pcs of 28000mAh Lithium Cells

* 1x parallel ,14 x string

* Nominal energy: 1500 Wh

* One Special 14cells PCB with balance function is installed withbattery pack to protect battery from over charging, over discharging and overdrain

* Voltage : 48V

* Capacity: 28Ah

* Cut-off voltage: 35V

* Max discharging current: 100Amp

* Max Continuous Discharging Amperage: 50 Amps

* Rated Discharging Amperage: 50Amps

* Charging Current: <=10 Amps

* Charging Voltage: 58.8Volts

* Lifecycle: > 85% capacity after 500cycles

* Lifecycle of single cell: >85% capacity after 500cycles, >70% capacity after 800 cycles. (<1C discharge rate and <1C charge rate)

* Dimension: 260X165 X110 mm (10.2X 6.5X4.3 inch)

* Weight: about :8.6kg ( 19lb)