i go w/ Costco or Autozone. both seem to last quite some time. i was always curious about the Optima batteries though. expensive. figured they were good lol
check all connections to battery as well as alternator. when i had some work done to my car, the shop forgot to plug in one of the main wires from the alternator that goes to the battery and it was tucked away so you couldn't see it.
my battery died, i replaced it, died, replaced alternator, battery still died. looked around and found the connection unplugged. solved all my problems, well aside from spending over $300 on **** i didn't need.
Im gonna have to check on that alternator cables too just incase, thanks