The Energizer Recharge Value Battery Charger for NiMH Rechargeable AA Batteries and AAA Batteries is a solid value when it comes to charging your rechargeable AAA batteries and AA batteries. This AA and AAA battery charger has four slots and charges 2 or 4 rechargeable batteries with an 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. Energizer is the world's #1 rechargeable brand.