Battery Suggestion
Thread Starter
Instructor
Joined: Sep 2019
Posts: 162
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From: Tequesta, FL
Battery Suggestion
I tried reading old threads about batteries. AGM, Flooded Acid…. Seems like things have changed since I did it last.
56 months ago I replaced the OEM factory battery in my C7 Grand Sport battery with an AC Delco, Group 48, 42 month warranty type. Looks like it needs to get replaced based on some strange display lightning on a drive this evening. First no instrument lights, then they came on, went off…. I will test it in the morning with my Foxwell tester.
Should I stick with the flooded acid type that I now have? Is there a better choice now in 2025?
56 months ago I replaced the OEM factory battery in my C7 Grand Sport battery with an AC Delco, Group 48, 42 month warranty type. Looks like it needs to get replaced based on some strange display lightning on a drive this evening. First no instrument lights, then they came on, went off…. I will test it in the morning with my Foxwell tester.
Should I stick with the flooded acid type that I now have? Is there a better choice now in 2025?
Roadster Madness. 😠
Joined: Sep 2009
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From: Ventura Co Ca
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I will get different batteries for different cars. I usually call AAA out and they change the battery in my driveway and run the test.
With the Corvette, I always use the AC Delco, 42 month Battery. Why take a chance, it has always performed well for me.
With the Corvette, I always use the AC Delco, 42 month Battery. Why take a chance, it has always performed well for me.
Safety Car
Joined: Jul 2019
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From: nashville TN
https://www.interstatebatteries.com/...corvette-v862l
Melting Slicks
Joined: Mar 2001
Posts: 2,670
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From: New Jersey
I put a Walmart Everstart Platinum H6 AGM battery in my C7, fits perfectly. The Walmart battery has the longest warrantee compared to this same battery sold at higher prices with other brand labels on it (AC Delco, Diehard, Duralast, Interstate....). $179 with a 48 month prorated warrantee. 760CCA, 120 minute reserve capacity, 70AH. These batteries are all made by Interstate.
It even has the two built-in handles to make it easier to lower the battery into the C7 hole....
Costco has this H6 AGM Interstate branded battery for $169, but with only a 36 month prorated warrantee.
It even has the two built-in handles to make it easier to lower the battery into the C7 hole....
Costco has this H6 AGM Interstate branded battery for $169, but with only a 36 month prorated warrantee.
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Team Owner
Joined: Jul 2004
Posts: 28,475
Likes: 3,291
From: Hartford WI
I put a Walmart Everstart Platinum H6 AGM battery in my C7, fits perfectly. The Walmart battery has the longest warrantee compared to this same battery sold at higher prices with other brand labels on it (AC Delco, Diehard, Duralast, Interstate....). $179 with a 48 month prorated warrantee. 760CCA, 120 minute reserve capacity, 70AH. These batteries are all made by Interstate.
It even has the two built-in handles to make it easier to lower the battery into the C7 hole....
Costco has this H6 AGM Interstate branded battery for $169, but with only a 36 month. prorated warrantee.
It even has the two built-in handles to make it easier to lower the battery into the C7 hole....
Costco has this H6 AGM Interstate branded battery for $169, but with only a 36 month. prorated warrantee.
Racer
Joined: Jan 2022
Posts: 494
Likes: 174
Interstate offers a LIMITED warranty 2025-3-15_IBWarranty_US_English.pdf which means that their warranty is worse than WALMARTS.
Autozone offers replacement warranty BUT you pay for it because the battery is 1.5x+ more expensive.
When I did my research on batteries, I figured out that most batteries come from the same manufacturer and the difference is the warranty. Walmart batteries are the best pound for pound battery/warranty that exists. (shocking, I know)
Autozone offers replacement warranty BUT you pay for it because the battery is 1.5x+ more expensive.
When I did my research on batteries, I figured out that most batteries come from the same manufacturer and the difference is the warranty. Walmart batteries are the best pound for pound battery/warranty that exists. (shocking, I know)
Team Owner
Joined: Jul 2004
Posts: 28,475
Likes: 3,291
From: Hartford WI
Interstate offers a LIMITED warranty 2025-3-15_IBWarranty_US_English.pdf which means that their warranty is worse than WALMARTS.
Autozone offers replacement warranty BUT you pay for it because the battery is 1.5x+ more expensive.
When I did my research on batteries, I figured out that most batteries come from the same manufacturer and the difference is the warranty. Walmart batteries are the best pound for pound battery/warranty that exists. (shocking, I know)
Autozone offers replacement warranty BUT you pay for it because the battery is 1.5x+ more expensive.
When I did my research on batteries, I figured out that most batteries come from the same manufacturer and the difference is the warranty. Walmart batteries are the best pound for pound battery/warranty that exists. (shocking, I know)
I get that there are a few companies making batteries. I understand the concept of "private labels" where 1 company can make EITHER THE SAME or VISUALLY SIMILAR products on the assembly line. What I don't know is how it is determined which way it is? Sure, the local McDonald's manager knows he gets his quarter pound burger from Sysco but does he know where it is sourced from? I've seen 2 units that are visually similar and from the same factory. Different internals.
Last edited by aklim; Aug 18, 2025 at 01:04 PM.
Racer
Joined: Jan 2022
Posts: 494
Likes: 174
Please explain what the Walmart warranty covers that the limited warranty you mentioned does not. I've personally seen them replace a battery less than a week before warranty is up.
I get that there are a few companies making batteries. I understand the concept of "private labels" where 1 company can make EITHER THE SAME or VISUALLY SIMILAR products on the assembly line. What I don't know is how it is determined which way it is? Sure, the local McDonald's manager knows he gets his quarter pound burger from Sysco but does he know where it is sourced from? I've seen 2 units that are visually similar and from the same factory. Different internals.
I get that there are a few companies making batteries. I understand the concept of "private labels" where 1 company can make EITHER THE SAME or VISUALLY SIMILAR products on the assembly line. What I don't know is how it is determined which way it is? Sure, the local McDonald's manager knows he gets his quarter pound burger from Sysco but does he know where it is sourced from? I've seen 2 units that are visually similar and from the same factory. Different internals.
Melting Slicks
Joined: Sep 2021
Posts: 2,555
Likes: 1,213
Please explain what the Walmart warranty covers that the limited warranty you mentioned does not. I've personally seen them replace a battery less than a week before warranty is up.
I get that there are a few companies making batteries. I understand the concept of "private labels" where 1 company can make EITHER THE SAME or VISUALLY SIMILAR products on the assembly line. What I don't know is how it is determined which way it is? Sure, the local McDonald's manager knows he gets his quarter pound burger from Sysco but does he know where it is sourced from? I've seen 2 units that are visually similar and from the same factory. Different internals.
I get that there are a few companies making batteries. I understand the concept of "private labels" where 1 company can make EITHER THE SAME or VISUALLY SIMILAR products on the assembly line. What I don't know is how it is determined which way it is? Sure, the local McDonald's manager knows he gets his quarter pound burger from Sysco but does he know where it is sourced from? I've seen 2 units that are visually similar and from the same factory. Different internals.
Team Owner
Joined: Jul 2004
Posts: 28,475
Likes: 3,291
From: Hartford WI
I get it that the old school lead acid worked great. For powersports and motorcycles, I probably would like lithium. One thing I like about AGM is that it is less vulnerable to vibrations than FLA. I mean, are you driving a car or does it sit on your bench to power something? Here we have some road among a bunch of potholes. Deep cycling, especially for summer only cars isn't a bad thing to have.
Last edited by aklim; Aug 18, 2025 at 10:22 PM.
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I have stuck with what has worked well for me, the OEM AC Delco one.
Melting Slicks
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Melting Slicks
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Burning Brakes
Joined: Jun 2012
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From: NJ
I just replaced my 10 year old battery with a Lithium battery Gr48 1100 cca 60-month warranty and only weighs 15lbs and cost $297. Seems pretty solid at 14.1 v, but I only had it two months. I'll see how it works out and update later.