The ImaxB3 AC Balance Charger is a charging device specifically designed for 7.4V-11.1V Li-Po batteries. It is used to recharge and balance the cells within these batteries, ensuring their optimal performance and longevity.The charger operates using alternating current (AC) power source, which means it can be directly plugged into a standard electrical outlet. Buy imaxB3 AC Balance Charger for 7.4V-11.1V Li-Po Battery online at the best price from Robomart