quote:Originally posted by #5754:
When I was out shopping for a new battery, Costco has a 3-year 100% replacement warranty on their 'Kirkland' batteries, but it was either 12 or maybe 18 months on the Optimas (and they cost twice as much) - If I knew I could get 8-10 years out of an Optima, I would have purchased it, but the short warranty made me question the durability.
Congratulations on getting so much time out of the battery though, that's very impressive!
I think if this battery had a Battery Tender on it right from the beginning, instead of only the last five years, it might have lasted longer. It would still start the Pantera when it was cold, but once it got fully warmed up, it didn't have enough to turn it over. The starter on the car is also good and Optima said that the battery only had about 1/2 of its original cranking power when place under load, but still held a constant 12.5 volts. The Optima really doesn't have much of a warranty, but the new one seems great and it will be on a Battery Tender all the time except when the car is taken on a trip as in Reno next month.