Listen up: We tested 15 AA batteries—the type typically used ... Battery life was 7.3 hours for an Energizer, 6.8 hours for a Duracell, and 4 hours for a Toys "R" Us battery.
The Duracell Coppertop Duralock AA Alkaline is part of the Batteries test program at Consumer Reports. In our lab tests, AA batteries models like the Coppertop Duralock AA Alkaline are rated on ...