Energizer Max AAA batteries deliver long-lasting power for your everyday devices. They hold their power for up to 10 years while in storage, so you have power when you need it most. Specifications L more→ong lasting energy when you need it No leaks, guaranteed - or your money back* Holds energy for up to 10 years** Makers of the World's first zero mercury alkaline battery*** * From leakage of fully used batteries for up to 2 years ** Shelf life *** Commercially available in 1991