3 Cell Li/Li-Po Battery Charger

Other than 1 cell and 2 cell Li-Po charger, the standalone 3 cell only portable chargers are not easy to find on the market. Since I portability is my top priority for charging the 3 cell serial battery packs at different locations, I designed my own switching type(more efficient than linear types) 3 cell Li/Li-Po battery charger


Current configured at 300mah for each channel. It can go up to 500mah or more each channel when a 15V 1A AC to DC adepter is used. The circuit was designed to charge at up to 1A each channel.