The primary, but not exclusive manufacturer of Diehard batteries is Johnson Controls. Zengzhou of China may make some of the special-use Diehards.
Sears batteries are manufactured by Globe-Union, which is a division of Johnson Controls.
Johnson Controls is the manufacture of Duralast batteries. This is the same company that makes batteries such as Sears Die-Hard, Honda, Ever Start, Energizer, Autocraft, Optima, Mazda, Mitsubishi, Alliance, and others.
Sears Die Hard Interstate
I've had good luck with Sears Die Hard and Interstate
I have had good luck with Sears Die Hard
Die-hard 775MF 640CCA from sears
Batteries use Cranking Amps not amp hours but the Die Hard Gold has 320 Cold cranking amps
Sears Holdings bought Kmart-probably just the way site is set up, it's now a Sears brand like Die Hard, Craftsman, etc etc.
lithium batteries do die fast.
In 2012 they were made by Johnson Controls. But next year they may be make by another company.
Edmund Sears died in 1876.
Julia Sears died in 1929.