Testing by MyBroadband revealed that Duracell Optimum batteries offer better performance than other alkaline batteries, but it is not significant enough to influence purchasing decisions. In July, ...

NEW YORK, Sept 30 (Reuters) - The maker of Energizer batteries sued the maker of Duracell batteries on Monday, accusing Duracell of duping consumers by implying that its new "Optimum" AA and AAA ...

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 ...

NEW YORK (Reuters) - The maker of Energizer batteries sued the maker of Duracell batteries on Monday, accusing Duracell of duping consumers by implying that its new "Optimum" AA and AAA batteries are ...