Energizers Max AA Alkaline Batteries last up to 10 years on the shelf so you have power when you need it. Offers leakage protection for two years after theyre expired to protect your electronics. Energizer also thought of the environmental implications by eliminating the use of mercury. Per 24. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Size: MAX AA 24 PACK. Type: Batteries.