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I have had my C8 for 3 1/2 years and decided to go to Interstate vs AC Delco. I ordered from local Costco so if issue does occur Costco has great return policies. Oh I do use a battery tender. Did not want an issue when out and about. Was a snap to change.
I have had really good luck with the interstate batteries. I’ve had one in my Camaro and one in a Mustang. They were perfectly fine after three years… I replaced them anyway…
I have had my C8 for 3 1/2 years and decided to go to Interstate vs AC Delco. I ordered from local Costco so if issue does occur Costco has great return policies. Oh I do use a battery tender. Did not want an issue when out and about. Was a snap to change.
I have ben a satisfied Costco member for years but find it strange that Walmart's AGM battery is 15 cents cheaper than Costco but includes a 48 month warranty, vs. Costco's 36 months. Costco is not often undersold.
I have ben a satisfied Costco member for years but find it strange that Walmart's AGM battery is 15 cents cheaper than Costco but includes a 48 month warranty, vs. Costco's 36 months. Costco is not often undersold.
My Walmart AGM battery lasted one year. I spent most of the morning trying to get Walmart to credit the full amount. Not as easy as going to Costco.
I have had my C8 for 3 1/2 years and decided to go to Interstate vs AC Delco. I ordered from local Costco so if issue does occur Costco has great return policies. Oh I do use a battery tender. Did not want an issue when out and about. Was a snap to change.
Be thankful it does not have that god awful finicky C7 positive side bus bar.
I have ben a satisfied Costco member for years but find it strange that Walmart's AGM battery is 15 cents cheaper than Costco but includes a 48 month warranty, vs. Costco's 36 months. Costco is not often undersold.
If you check Consumer Reports, they rank the Walmart Platinum AGM battery much higher than Costco's Interstate Batteries.
I have been using a Deltran Battery Tender starting with my 1987 C4 then 1989 C4 and 2016 C7 and have had GM Delco batteries last 10 years !!!
I use the GM one that plugs into the frunk. I have one of the above I used on my previous Vettes. Yes my battery may of lasted lots longer, however I always change my batteries between 3 and 4 years. My last Sierra Denalis battery did not make 3 years, yes my truck is a daily so no tender.
2025 c3 ('68-'73) of the Year Finalist - Unmodified
2025 C4 of the Year Finalist - Unmodified
2025 C8 Stingray of the Year Finalist - Unmodified
I was a satisfied Walmart battery customer for many years but I switched to Costco recently. Better price and warranty for the battery I was buying. Since Im old and weak I use battery carrier any time I change a battery. Highly recommend one. For a real treat in battery changing try removing one that doesn't have a carrying strap in a C3 (behind drivers seat).
Costco battery warranty is the best. It might be only 3 years, but you bring it in and they give you another one. Just that easy.
Not any more read the warranty, it's now a prorated warranty. You don't get a new battery for free
If there is a defect in material or workmanship (not merely the battery being discharged), this limited warranty provides that upon return of the battery to any United States or Puerto Rico Costco Wholesale warehouse, a pro-rata portion of the original purchase price and sales tax paid will be refunded.
Last edited by feeder82; Jun 15, 2025 at 09:45 AM.
Do some research and you will find actual battery manufacturers make batteries for a variety of brands. It's all about warranties, service and availability.
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.
New Interstate Battery
