| Recommended C harger: | QW050-020-4NL |
| C harger input: | DC 5V/2A(10W Max) |
| C harging mode: | constant voltage constant current (CC/CV) |
| C harging voltage: | 4.2V±1%/1.48V±1% |
| C harging current: | 500mA*4(2a Max) |
| C harging time: | 4-5 hrs(standard) |
| C harger working instruction: |
Red light flashing: 0~50%
Yellow light flashing: 50~75% Green light flashing: 75~100% Long green light: charging completed |