3.7V 1S 500mA USB Charger JST plug

3.7V 1S 500mA USB Charger JST plug
Brand: ECHOBBY
Item No.: USB1S500J (Buy-It-Now)

3.7V/1S LiPO USB Charger
Input: DC5V 0.5-2A
Output: 4.2V/500mA
Charge Lamp:
Lamp On = Charging
Lamp Off = Battery full or No battery, or no Power supply
Charging connector: JST female
Wire Length: about 55cm
For 1S 3.7V LiPo /Li-Ion battery charging
Q'TY: 1P