64 months of service means it started my vehicle at least 8000 times (@ 4 per day); I'd say that's pretty good. To max the life of any wet type car battery, you've got to aim for 100% charged at all times. Not being 100% charged aids/speeds sulfation which kills the battery. If my vehicle is going to sit for more than 24rs, I connect a battery maintainer. And, no matter what, at least least once a week I connect the maintainer when I'm done for the day. That's the secret folks. The battery in my vehicle before this one, a DieHard Gold from 2005, lasted 10 years and it too was on a maintainer. Buy a good quality maintainer, use it, and you'll get the longest life possible from the battery.

Purchased my first battery on about 3/20, 11/20 had to be replaced because it had dead cells. 12/20. Already needs replaced again. Puts my granddaughter at risk if she can't count on her car to start. Hope this is the last time. Will try to get Sam's to replace with another brand. We will see how that goes

I own a 2001 Z28 camaro that has some anti-theft devices that draw current 24/7. It eats batteries for breakfast. This DURACELL battery held up for 34 months and Sams replaced it with no problem. Very satisfied.

Best deal for batteries and great warranty. Bought mine from Walmart in 2017 for my RV and it lasted for 6 years! It would still start my RV if I trickle charged it too! And yes I live in my RV and use it all the time!

Why the lousy ratings? Back in January 2011 I bought this battery for my 72" Grasshopper 928D2 mower w/28hp diesel. I mow 20 acres every week here in southwest coast of Florida. And I beat the heck out of this mower. This battery just now dropped voltage...over six years later! Going back to Sam's to pick up another.

Purchased 3 years ago & still going strong! 850 CA REALLY spins over my Corvette well, a lot better than the other brand I had.

I got mine in Dec. of 2013 and now in Nov. 2020 it is sounding a little bit hesitant when starting my 2007 Pontiac G6. I am going to buy it again.

I bought this in 2014 and it just now died. Been running my car every day will be buying the same thing.

I bought 3 of these batteries and have had nothing but trouble with them. BEWARE

battery is 1 year old , dead as door nail , prior battery lasted 4 months , not very good