The easy way to keep all your rechargeable batteries juiced. The Energizer Universal Charger is designed for range, charging standard rechargeable battery sizes big and smallfrom AAA to 9V NiMHwithout the need for multiple charging devices. Its LED light bar status indicator updates you 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. With a multitude of safety features, like bad and primary battery detection, reverse polarity protection, and a timer that prevents overchargingyou get a reliable and worry-free charge time after time. So whenever a device runs out of juice, from game controllers to TV remotes to flashlights and toys, know you can trust the long-lasting performance and intuitive charging power of Energizer Recharge. Charges: 2 or 4 AAA, AA, C, or D, or 1 or 2 9 Volt. Compatible with all NiMH rechargeable batteries.