The_Josh_Bear
Full Access Member
This is the way I go, Costco has one of the best return policies going. They haven't complained one little bit when I come in and say "one of these two batteries has a bad cell/isn't holding charge, but because it's a diesel I have to replace them in pairs". The just take the batts back and prorate the warranty and I walk out with new batteries. Only done it twice in 13ish years but the second time was just last year.I'm liking the Costco Interstates - 42 month warranty(free replacement), <$100, 850 CCAs.
Obviously, you may need a Costco membership(or friend with one) to purchase.