AOKoda 4 Channel Charger For 1S PH2.0mm Lipo Battery 4.2/4.35V, Charge Current:500mA，Input Votage:5V，Current:2A-5A，If only charge one battery，USB of commputer(500mA) can work well.Green LED flashing when charging，4.2V LiPo battery is slow flashing，4.35V LiPo battery is fast flashing，solid LED is filled.

LiPo Battery votage:3.7-4.2V；Li_Hv Battery votage:3.8-4.35V

4 Channel Charger For 1S PH2.0mm Lipo Battery

The back,Actually, there is no button at all. The charger recognizes automatically.

The Package