Energizer Recharge Value Charger - This AA and AAA battery charger has four slots and charges 2 or 4 rechargeable batteries with a 8-hour charge time. Auto shutoff and overcharge protection on this AAA and AA battery charger allow safe charging for long lasting batteries. Use this battery wall charger at home to power NiMH rechargeable batteries for all types of gadgets. This Energizer battery charger has an easy-to-read LED display to show the charging status with a red light to indicate it's charging and green to show it's done. A bad battery indicator light on the rechargeable battery charger shows you when your batteries go bad. Charges AA and AAA NiMH (nickel metal hydride) batteries Automatically turns off when batteries are fully charged Energizer Recharge Value Battery Charger for NiMH Batteries