After charging battery twice I took it back to Costco on July 3, 2013 and they replaced it. They adjusted the price so I didn't have to pay the new increased price. On Sunday, 2-22-15, after returning from Costco for warranty flat tire repair, I parked my van as usual. On Friday 2-17-15 I went out to start my van the battery was completely dead and I mean dead. I am not happy! I bought this battery as it had several good reviews but I cannot give it a good review. The inconvenience of having to haul it back to Costco and haul the new one home and install it myself is not worth the exchange policy for me. Since they install tires in the same department that sells the batteries, I don't understand why they won't also install the batteries. Wonder why they stopped selling the Kirkland battery? I know why, junk, junk!