Power up reliably with the Volkano Extra Series Rechargeable AA Batteries (Pack of 4). Designed for durability, performance and peace of mind, these high-capacity rechargeable AA batteries are perfect for your everyday devices - from remotes and toys to wireless gadgets.With a capacity of 2100 mAh, these batteries deliver strong, consistent power. They are rated to hold up to 5 years of shelf life / power retention, meaning they stay ready even when unused for extended periods. Plus, they are 0% mercury and cadmium, making them safer for you and the environment.Built for repeated use, they can be recharged hundreds of times - making them a cost-effective alternative to disposable batteries. Trust in performance, longevity and safety, all in one pack.