[CampinMike]

Whatever you do, don't buy a battery from Costco. They recently changed their warranty to a 36 month prorated warranty - no free replacement period.

I do not see that anywhere. In fact, they online still say you get the purchase price refunded or put toward a new battery. Where they have gotten into trouble is they may not give you a new battery for "free" if the price of the battery has gone up since you bought it... but they will give you the full purchase price towards a new one. So if you bought your old battery for $119 and now they charge $129 you owe them $10. Given the savings vs other batteries it was worth it to me when I had to replace my truck battery(non-AGM). $119 from Costco vs $160 or more elsewhere.

 

[CampinMike]

If you're not seeing it, you're choosing to ignore it. Their website clearly states "36 Month Prorated Warranty on Automotive Batteries" in large font. Their pricing isn't that competitive either IMO. You can get an Everstart battery from Walmart with a 4 year free replacement warranty for about the same price. Walmart stores are everywhere and have longer hours so a replacement is far easier to obtain.

I see it now. I was looking on the page they send you to for finding the right battery to fit your car which has outdated info. The warranty info there still shows non pro rated but the costco site does show pro rated.

 

[CampinMike]

and you will replace them again within 2 years

Not necessarily. I replaced our start stop battery at around 3 years or so and the main battery made it till almost 5 years. The replacement start stop battery is still fine and is around 2.5 years old... I hope to get plenty more from it.