Most reviews of Duracell brand automotive batteries are favorable, with batteries receiving four or five stars on a five-point scale. Duracell automotive batteries are manufactured by East Penn, one of the largest battery manufacturers in the United States. East Penn products are rated well in their classes.
Duracell automotive batteries are sold at Sam's Club stores across the US and include a three-year free replacement warranty program and an eight-year prorated warranty. The length and terms of the warranty are equal to or better than other national automotive battery brands, and Sam's Club customers consistently gave Duracell automotive batteries good reviews.