Duracell Optimum AA batteries, our #1 best performing alkaline batteries, are now formulated with 4X the patented POWER BOOST™ Ingredients vs Coppertop AA. Compatible with any AA battery-operated device, these AA batteries are packaged in a slider pack with resealable storage tray for a more organized way to store your batteries. Duracell guarantees these batteries against defects in material and workmanship. From storm prep to holiday needs, Duracell is the #1 trusted battery brand for the moments that matter most. Battery Features FORMULATED WITH 4X POWER BOOST™ INGREDIENTS: Duracell Optimum AA batteries contain 4X of Duracell’s patented POWER BOOST Ingredients vs Coppertop AA DURACELL'S #1 BEST PERFORMING BATTERY: Optimum AA battery is Duracell's best performing AA alkaline battery RESEALABLE PACKAGE: Duracell Optimum batteries come in a resealable package for quick, easy access and storage #1 TRUSTED BATTERY BRAND: From storm prep to holiday needs, Duracell is the #1 trusted battery brand for the moments that matter most QUALITY ASSURANCE: With Duracell batteries, quality is assured; every Duracell product is guaranteed against defects in material and workmanship