Product Description:StayCharged is a brand new technology, where the rechargeable batteries have taken the benefits from regular rechargeable batteries and combined them with the best of alkaline batteries. StayCharged batteries have very low self-discharge, the same as normal Alkaline batteries. That is why the batteries in this package are ready for use when taken out of the pack. They are pre-charged and and ready for use even after 1 year in the pack, they are still ready for use! StayCharged batteries can be charged 1000 times. Which is great for the environment and your pocket. ... More information about this product.