Woot offers (22 PACK) Duracell Optimum AAA Batteries with Long-lasting Power, Resealable Package for Storage, All-Purpose Alkaline AAA Battery for Household and Office Devices for $14.99 (orig. $23.99). Free shipping for Prime Members. 

Product Description:
Duracell’s most groundbreaking innovation yet. Duracell 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 loose batteries everywhere!). Duracell is the #1 trusted battery brand, and we're proud to offer you Duracell 1.5-Volt Optimum Alkaline batteries as part of Duracell’s trusted lineup of batteries. *Extra Life or Extra Power vs. Coppertop in a wide range of devices 

• IMPROVE YOUR DEVICE Our battery delivers extra power in some devices or extra life in other devices compared to Coppertop, in a variety of devices
• ADVANCED SLIDER PACK Features a resealable storage tray that keeps your Optimum batteries exactly where you need them
• Versatile and powerful: compatible with any battery device