Duracells best alkaline! No other alkaline lasts longer!*
- The premium alkaline battery that offers a premium performance in all device!
- Every Ultra battery has a Powercheck Tester, so you always know how much energy is left inside!
*based on the average of testing for devices used most
Advanced longer life
- New and improved Formula in AA and AAA!
- The reliable energy source for all your power needs!
*vs.previous Duracell AA / AAA Plus
