4-pack of Energizer Recharge Power Plus 2300 mAh NiMH AA rechargeable batteries, pre-charged and ready to use. The World’s 1st rechargeable AA battery made with 4% recycled batteries. Delivers long-lasting power to frequently used devices, like digital cameras, gaming controllers, and toys. Retains its charge in storage for up to 12 months so reliable, rechargeable power is always on hand. Charges up to 500 times for an economical and responsible way to keep your battery-powered devices working. Lasts up to 4x longer in digital cameras than Energizer MAX making sure you never miss out on a memory (results vary by device).