| Brand | RUSTU |
| Color | Black + Blue |
| Quantity | 1 |
| Type | Lithium Ion |
| Model | 18650 |
| Mark Capacity | 2 x 2600mAh |
| Actual Capacity | 2 x 2600mAh |
| Battery Voltage | 4.2 V |
| Rechargeable | Yes |
| Rechargeable Times | 600 |
| Buitl-in Protected Circuit | Yes |
| Over Voltage Protection | Yes |
| Short-circuit Protection | Yes |
| Over-charging Protection | Yes |
| Over-discharging Protection | Yes |
| Mercury Free | Yes |
| Application | Power source for constant current 4.2V bicycle light; Suitable for D11/D12/D14/D15/D16 series headlight |
| Packing List | 1 x Battery pack (120cm cable) |
| | 1 x 100~240V power adapter (2-flat-pin plug / 130cm cable) |
| | 1 x Nylon Pouch |