GreenYour.com

Charging up to four "AA" or "AAA" NiMH batteries in 30 minutes, this charger also comes with four AA NiMH rechargeable batteries. Features include an automatic shuts off ability when a full charge has been reached, which helps prolong the life of the device and uses less energy. The system is also lightweight and has a built-in cooling system to prevent batteries from overheating. Batteries can be recharged up to 1,000 times.