Costco GC2 batteries changed?

voodoo101 wrote:
I have used 4 Costco GC2 batteries for years and usually get 6 years from them. Never a failure. I just Google searched them and see many (16 of 18) negative ratings. I need to replace my five year old batteries and had planned to go with a proven product. Has something changed?

Were the bad reviews for Costco batteries in general or the 6V GC batteries specifically? I bought 3 12v starting batteries from Costco last year 2 failed out right for my daughters car and were replaced and my car was very sluggish starting all winter. My Costco does not sell 6V GC batteries so I bought mine from Sam's Club in 2007 and they are working fine after 13 years. I think they were Duracell. They made it through the winter fine but I have not used them for camping yet to see if they lost any capacity. For the price difference I would definitely buy them again over the Trojan 105's.