Duracell Optimum alkaline battery has a new cathode system that can give your device Extra Life*—like toys that run longer—or Extra Power*—like brighter flashlights, it's Duracell's most groundbreaking innovation yet. Optimum Batteries are packaged in a new slider pack with a resealable storage tray, that provides a more organized way to store your batteries (no more loosing batteries everywhere!).

Duracell Optimum, proprietary cathode with two active ingredients

Duracell Optimum AAA is compatible with any AAA battery operated device

Caution: may explode or leak, and cause burn injury, if recharged, disposed in fire, mixed with a different battery type, inserted backwards or disassembled. Replace all used batteries at the same time. Keep in original package until ready to use. Do not carry batteries loose in your pocket or purse. Do not remove battery label.