7.4V 500mA USB Charging Cable SM-3P positive plug

7.4V 500mA USB Charging Cable SM-3P positive plug
Brand: ECHOBBY
Item No.: USB2S500C1 (Buy-It-Now)

Input: DC5V /1-2A
Output: 7.4V/500mA
Charging Plug: SM-3P Positive
Cable Length: 55cm
Charging Lamp
Red Lamp: power indicator
Green Flash = charging
Green On = battery full
Q'TY: 1P
For 7.4V/2S LiPo Li-Ion battery pack