| Color | Black |
| Power Adapter | US Plug |
| Model | BestFire |
| Quantity | 1 Piece |
| Material | Plastic |
| Charging Cell Type | Lithium Ion |
| Charging Battery Type | 18650 |
| Rechargeable Battery Qty | 2 |
| Target Country & Region | USA |
| Built-in Protected Circuit | Yes |
| Input Voltage | 100-240 V |
| Output Voltage | 4.2 V |
| Max. Output Current | 650 mA |
| Fast Charging Function | Yes |
| LCD Screen | No |
| Auto Circuit Detection | No |
| Over Voltage Protection | Yes |
| Short-Circuit Protection | Yes |
| Over-Charging Protection | Yes |
| Over-Discharging Protection | Yes |
| Nominal Capacity | 3100 mAh |
| Battery Actual Capacity | 2500 mAh |
| Certification | CE |
| Packing List | 1 x US plug adapter (AC 100~240V、 DC 4.2V 650mA) 2 x 18650 batteries |