This charger is compact and light, which can charge 2s or 3s Li PO battery pack (7,4/11,1V). There is a separated corresponding balance port for each battery pack.
This charger has 3 LEDs, after connecting the led will turn green - information that the device is ready for work. After connecting, battery LEDs will turn from green red - charging. When the charging is finish LEDs will turn green - the battery is fully charged.