many years ago OPTIMA was made in the U.S.A. and at that time it really was a great battery with rarely an issue. a few years back they moved their manufacturing to, if I remember correctly, Mexico and they've never been the same since
I think I'll try a AGM when it's time to replace my OEM one. Stay away from Optima. I bought into the hype and ran a yellow top on my old V8 CJ7 and it died a quick death and got recycled. Add that to the list of wasted money on crap.