DURACELL Optimum AA Batteries (4 Pack) – Alkaline Pack of 4, Black oak.

Vs. Duracell Plus. Proprietary technology, vs. other Duracell batteries. Made by: Duracell Batteries BV., Nijverheidslaan 7, 3200 Aarschot, Belgium. OUR # 1 BEST PERFORMING BATTERY: Duracell’s Optimum AA alkaline battery is our best performing AA alkaline battery.

eBay