| Form Color | Black |
| Brand | UltraFire |
| Model | FY-300 |
| Quantity | 1 Piece |
| Material | Lithium ion |
| Cell Type | Lithium Ion |
| Battery Model | 18650 |
| Head Type | Button Top |
| Mark Capacity | 2600 mAh |
| Measured Capacity | 1800 mAh |
| Voltage | 3.7 V |
| Rechargeable | Yes |
| Rechargeable Times | Others、1000 times |
| Built-in Protected Circuit | No |
| Over Voltage Protection | No |
| Short-Circuit Protection | No |
| Over-Charging Protection | No |
| Over-Discharging Protection | No |
| Mercury Free | Yes |
| Other Features | Charger Input: AC 100~240V / 50~60Hz; Charger Output: 4.2V 250mA |
| Packing List | 1 x 18650 Lithium Battery 1 x US Plug Charger (100~240V / 50~60Hz) |