Can be used for 7.4V (2S pack)and 11.1V (3S pack).
Red LED will flash when cell is below 3.3V and an Alarm will sound when cell is below 3.0V indicating the Lipo Battery pack should be recharged.
With 2.5mm pin spacing, it works with 95% of the lipos on the market.
Never charge lipo battery in a flammable surface
ALWAYS monitor your battery when it is being charged.
Use only lipo battery charger to charge a lipo battery.