| Color | Red |
| Brand | UltroFite |
| Model | N/A |
| Quantity | 1 Piece |
| Material | Li-ion (Lithium-ion) |
| Cell Type | Lithium Ion |
| Battery Model | 18650 |
| Head Type | Button Top |
| Mark Capacity | 5800 mAh |
| Measured Capacity | 600 mAh |
| Voltage | 3.7 V |
| Rechargeable | Yes |
| Rechargeable Times | Others、1000 times |
| Built-in Protected Circuit | Yes |
| Over Voltage Protection | Yes |
| Short-Circuit Protection | Yes |
| Over-Charging Protection | Yes |
| Over-Discharging Protection | Yes |
| Mercury Free | Yes |
| Packing List | 1 x Battery |
The 18650 rechargeable lithium battery is equipped with a protection circuit board (PCB) on the negative pole. The PCB can protect the battery from overcharge、 over-discharging、 overload and short circuit、 which can make the battery safer and longer lifespan. The battery is environment friendly and perfect for super bright flashlight and other devices.