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Advanced still sells DieHard they used to be a good value I don't know who makes them now.
Just bought a Die Hard for the Suburban. GI discounted to about $120.00 3 yr warranty.
The one I was replacing, a AA brand was 3 mo's out of the 3 yr warranty.
A catch on the warranty...The "prorated cost" is based on list price.
 

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馃悢County, TN. 55 Bel Air Sport Coupe
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Dang, during the cold snap I forgot to get a new interstate battery. Just leave it out in the cold and let them test it like that. After all, the warranty test has to pass the CCA for replacement not the CA, so let them test it while it's cold.
 

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I don't know about other batteries but when AC Delco went from 5-7 year warranties that were pro rated to a straight 3 year warranty with no pro rate it was really a better option I think. with the pro rated warranty you only had 1 year free replacement (I think it's been a while) then it was pro rated by the time it was around 4 or 5 years old the pro rating replacement figured at list, cost more than you could find the same battery at a discounted price most anywhere else.With the 3 year they just replaced a bad battery at no cost to the customer.I also think the reason we see a shorter life span on batteries is that the amount of electronics on a modern car just pull more of a constance draw.The 2013 Avalon we bought had a warranty history of battery replacement but the car was 5 years old when we bought it with only 23000 miles at the time which means it wasn't being driven a lot.I replaced the battery once since then & the car now has 85000. Don't give me grief this is the first non GM car I've ever owned ( it's my wife's) since I was 16 & I have to say it's been a good one.Three other Chevies in my drive way + the 56 in the garage.
 

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On battery # 3 since buying a 02 Tundra new 20 yrs ago ... I've never got less than 6-7 yrs out of any new battery ever except for one that was "borrowed" from my VW Thing (without asking) years ago. Seems about the norm for most friends as well , don't know why, maybe related to SoCal climate.
 

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Discussion Starter · #48 ·
Angs1957
yup .... ya gotta pass enough AMPS thu the battery plates to dissolve the sulfation .....it takes several "passes"...and cool downs......also the hydrogen boils out of the cells while this happens .....make sure there is PLENTY of ventilation.....then let the battery completely cool down.......charge it as normal....and wh-la.....works like new
unfortunately an AGM battery isn't built the way a regular battery is. AGM batteries almost similar structure, the main difference being the inclusion of a fiberglass mat between the two electrodes. The mat acts as a sponge, holding the electrolyte so not sure it would ever get the boiling effect. The biggest thing I see is supposedly the fact the AGM is better for off road use because of less spillage and maintenance. I don't do off road so pretty sure there's no absolute reason a regular battery wouldn't work but wouldn't take any chances.
 

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Soooo.... How does the vehicle know the difference between an AGM vs Lead Acid battery?
Agm is absorbed glass mat battery. The acid is put in then dumped out. They are good batteries if putting in trunk because they do not vent as much fumes. I know because I work at deka batteries. We make diehard Napa and Wal-Mart. Plus Duracell. Buy Wal-Mart and buy the cheapest because they all come out of the same hole. All your paying for is the warranty. A battery should last at least 5 to 6 years. I've never really had a major issue with any deka made batts. The only problem since covid is we are buying more than we are making. Jeff
 

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Inflation hit battery prices before the recent inflation of all other prices.

One good thing is that late model vehicles have a charging management strategy that helps keep from cooking the battery when it's hot out, by reducing charging voltage. The original battery in my 09 GMC only lasted six weeks - but the warranty replacement lasted 11 years - until the big Texas freeze in 2021.
 

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DOES ANYONE HERE HAVE AN INTERSTATE BATTERY DISTRIBUTOR IN THEIR AREA?
I buy ALLLLLLLLLLLLLLLLLLL my batteries (blem) from the Interstate distributor here in Okla City-------------------------------$49 out the door with exchange. I just got home from buying a type 27 battery for the airplane tug, at $49.
If there is an Interstate distributor in your area, call and ask them if they sell blems.
 

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Discussion Starter · #53 ·
DOES ANYONE HERE HAVE AN INTERSTATE BATTERY DISTRIBUTOR IN THEIR AREA?
I buy ALLLLLLLLLLLLLLLLLLL my batteries (blem) from the Interstate distributor here in Okla City-------------------------------$49 out the door with exchange. I just got home from buying a type 27 battery for the airplane tug, at $49.
If there is an Interstate distributor in your area, call and ask them if they sell blems.
none near me at all.
 

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I have to remember to go to a certain mom and pop parts store. They buy pallets of Deka batteries with cosmetic blemishes. Only heard good news about the prices and the quality.
Agm is absorbed glass mat battery. The acid is put in then dumped out. They are good batteries if putting in trunk because they do not vent as much fumes. I know because I work at deka batteries. We make diehard Napa and Wal-Mart. Plus Duracell. Buy Wal-Mart and buy the cheapest because they all come out of the same hole. All your paying for is the warranty. A battery should last at least 5 to 6 years. I've never really had a major issue with any deka made batts. The only problem since covid is we are buying more than we are making. Jeff
We used to go to the Deka plant in PA, and buy blems or seconds. Always felt like Deka batteries held up well. i totally forget where, Reading or Pottstown maybe, its been so long now.
 

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Do they still sell batteries at the plant? Funny, i can remember what the plant looks like, but couldnt remember where it was. i was kinda close.
I remember hearing something about them closing in the new year. But you are better going to Wal-Mart. That's where I go. I even can't get a better deal even though I work there. I remember when I could get 2nds for $20 bucks. Now your over $80. Better to buy new and get a warranty. I'll check about the store. I have off till next year. Jeff
 

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馃悢County, TN. 55 Bel Air Sport Coupe
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We used to go to the Deka plant in PA, and buy blems or seconds. Always felt like Deka batteries held up well. i totally forget where, Reading or Pottstown maybe, its been so long now.
Sort of near Reading, closer to Fleetwood. Was there a distinct awful smell at times? I think they are/were near all the mushroom farms. Damn did their compost stink for miles! Stronger than pig crap by far. I used to live in the Pennsburg area if you know where that is. The north east tip of Montgomery county bordering Bucks, Berks, And Lehigh counties. 45 minutes from East Coast Chevy but never bought a part from them when I lived up there.
 

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馃悢County, TN. 55 Bel Air Sport Coupe
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The other day in the single digits I went to start the van and it cranked fairly slow, plus I had to give it three tries but it didn't quit cranking. Looked at the battery and it has a 4/17 date stamp on it. I don't remember the specifics, but for some reason it's an AutoZone brand.

Unrelated, I'm wondering why it is having to crank so much even in 36掳 weather before it starts. Hoping it's not the fuel pump again.
 

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I have the original OEM Delco battery in my 2010 Camaro (12 yrs). It's in the trunk and vented to the outside. So far, so good! When it dies, I will replace it with a Diehard (pun intended)
 
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