Duracell Optimum AAA Batteries provide extra life in devices, such as a wireless mouse and keyboard, and extra power in some devices, such as a favorite toy - vs. Coppertop AA/AAA. The proprietary cathode is formulated with two active materials for more energy. Use with any AAA battery-operated device, such as wireless mice, remote controls, kids handheld games, electric toothbrushes, and toys. The Optimum batteries are packaged in a resealable tray for easy access and convenient storage - no more batteries rolling around loose in the drawer!

• Proprietary cathode with two active ingredients
• Resealable package for convenient access - just peel, then reseal, and re-peel and re-reseal!
• Storage tray to keep your batteries protected and organized
• Our highest energy disposable AAA