Charging has never been easier! Our Lectron Pro AC-3A features a 3A charge rate and automatically balances your battery when charging. Setting up the charge is simple, just plug the balance connector from your 2S, 3S, or 4S LiPo battery into the charger, and the charger does the rest! With 35W of charging power, you'll have your battery charged in no time. This charger also has LEDs on the front that show you the charge status.