Rayovac Rechargeable AA Batteries (8 Pack) NiMH Double A Batteries Rayovac Rechargeable AA Batteries last up to 2x longer than standard alkaline Rayovac AA batteries in your digital camera and keep your favorite devices powered. Rayovac recommends these long-lasting NiMH batteries for the devices you use most including gaming controllers wireless mice flashlights and remote-control vehicles. Rayovac Rechargeable batteries are pre-charged and ready to use. Or save this AA battery pack for later—these double A chargeable batteries hold a charge for up to a year in storage to deliver power when you need it*. When it s time to recharge just put these NiMH rechargeable batteries in any AA battery charger. Every time you do it helps to keep disposable batteries out of landfills. Less waste more power—you get more with Rayovac. *For optimal performance charge batteries prior to using