Battery chargers can get very complicated. Airsoft Extreme presents a smart charger that is plug and play. Simply plug in any 7.2V to 12V NiCad or NiMH battery and leave it. This charger will automatically shut itself off when the battery is full, preventing any damage from overcharging or overheating. At a 1A charge rate, it will charge most common airsoft gun batteries in less than two hours. Another great solution for a great price from Airsoft Extreme!