I had heard that Optima batteries were made by JCI which was purchased and was rebranded as Clarios. Here is an ad I saw in this months Hot Rod digital magazine. Yes, Optima batteries are made by Clarios.
Originally they touted superior intercell connectivity. I think its a bunch of folderol.I have yet to read where spiral wound (Optima) AGM are any better than regular AGM.
I have yet to read where spiral wound (Optima) AGM are any better than regular AGM.