Energizer NH15BP4 AA 2300 mAh / NiMH Rechargeable. Each Batterie is Pre-Charged.. Energizer Power Plus Rechargeable AA Batteries offer a convenient way to power devices while saving money and reducing waste. Made with 15% recycled materials, these AA rechargeable batteries use innovative technology for reliable use. These chargeable batteries are designed to prevent damaging leaks. Use Energizer rechargeable batteries as batteries for cameras, game systems and toys. These Energizer AA batteries come pre-charged. Each AA rechargeable battery holds power up to 12 months in storage, and the double A batteries have up to a 5 year battery life