[Campion]

DieHard batteries are made by Johnson Controls. They're expensive but nothing special. (There's only about three companies that make car batteries anymore in the US -- everyone else just relabels products from those three companies.)

You can get the same battery, perhaps with a lesser warranty (but maybe one which the seller will actually honor) from several retailers. Interstate is the Johnson Controls "home brand". They also make batteries relabeled for various auto parts chains, as well as Walmart, Tractor Supply, etc.

[TheConservativeParty]

Thanks for the info!