Originally Posted By: been40
Basically, all batteries in the US are made by three companies: Johnson Controls, Exide, and Delphi. Delphi makes some EverStart (Walmart) and AC Delco. Johnson Controls makes Duralast (Autozone), Diehard (Sears), Kirkland (Costco), Motorcraft (Ford), Interstate, and some of the EverStarts. Exide makes Exide, Champion, NAPA, and some EverStart batteries. My experience is that the Johnson Controls batteries get the best overall ratings.
Basically, all batteries in the US are made by three companies: Johnson Controls, Exide, and Delphi. Delphi makes some EverStart (Walmart) and AC Delco. Johnson Controls makes Duralast (Autozone), Diehard (Sears), Kirkland (Costco), Motorcraft (Ford), Interstate, and some of the EverStarts. Exide makes Exide, Champion, NAPA, and some EverStart batteries. My experience is that the Johnson Controls batteries get the best overall ratings.