| Form Color | Black |
| Material | Li-polymer |
| Quantity | 1 Set |
| Compatible Models | WLtoys V977 V930 |
| Battery Measured Capacity | 520 mAh |
| Nominal Capacity | 520 mAh |
| Battery Type | Li-polymer battery |
| Voltage | 3.7 V |
| Input Hertz | 50~60 Hz |
| Input Current | 6 A |
| Input Voltage | Others、110~240 V |
| Output Current | 6 A |
| Output Voltage | Others、5 V |
| Power Adapter | US Plug |
| Certification | CE |
| Other Features | 8 Times faster than ordinary charger for simultaneously charging 4 batteries. It needs 72mins for charging 4 520mAh batteries、 each for about 18mins. |
| Packing List | 1 x X4 balance charger 1 x 3A plug 1 x EU plug converter 1 x USB charging cable (62＼2cm) 4 x 520mAh batteries (4cm＼2cm-cable) |