Upgrade your device with Duracell�s most groundbreaking innovation yet.
Duracell Optimum batteries have a proprietary cathode system that can deliver extra power in some devices, or extra life in other devices, vs Coppertop AA and AAA, in a wide range of devices.
Optimum Batteries are packaged in a slider pack with a resealable storage tray, that provides a more organized way to store your batteries
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