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 small—from AAA to 9V NiMH—without 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 overcharging—you 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. Specs at a glance: • Charges: o 2 or 4 AAA, AA, C, or D o 1 or 2 9 Volt • Compatible with all NiMH rechargeable batteries • LED Light Bar Charge Status Indicator • Short Circuit and Reverse Polarity Protection • Primary Battery Detection • Bad Battery Detection • Delta V Charging Cut-off • Safety Timer to prevent overcharge • Limited Lifetime Warranty (see manual for details) * Times may vary by NiMH battery.