Only for the model: Challenger Pro / Challenger Plus
- 36V 13Ah Lithium-ion Ebike Battery Pack.
- Genuine, High-quality Samsung 2600 Cells.
- Smart Battery Management System, overcharging protect.
- Lockable and removable with two keys included.
- LED light charge level indicator.
- On/Off Switch.
- No charger included.
- 7.5 hours charge time.
- 11lbs weight.