HotRC A400 40W 3-4S

Simple and inexpensive charger especially for beginner pilots. The charger is powered from the mains, so you don't need any external power supply. The HotRC A400 can charge 3S and 4S Lipo batteries using the balance connector. The 40W output is ideal for 4S batteries of around 1500mAh capacity, which are common on racing copters. A simple display shows battery voltage and charging status. Simply plug the charger into the mains, connect the balance connector and the charger does the rest.