Universal rechargeable battery charger. Designed for range, charging standard rechargeable battery sizes big and small - from AAA to 9V NiMH - without the need for multiple charging devices. Features an LED (light emitting diode) light bar status indicator which updates in real time when charging is complete. Helps maximize battery performance; this charger automatically shuts power off to the circuit once it detects batteries are fully charged. Includes a multitude of safety features, like bad and primary battery detection, reverse polarity protection, and a timer that prevents overcharging. Charges (2) or (4) AAA, AA, C, or D, (1) or (2) 9V. Compatible with all NiMH rechargeable batteries. Limited lifetime warranty. Charging times may vary by NiMH battery.