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DieHard Platinum AGM Battery

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Old May 11, 2026 | 11:28 AM
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Default DieHard Platinum AGM Battery

Any thoughts on this as a replacement battery on my 2014

DieHard Platinum AGM Battery : H6 Group Size, 760 CCA, 950 CA, 120 Minute Reserve Capacity H6-AGM - Advance Auto Parts
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Old May 11, 2026 | 11:32 AM
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Thoughts? Yeah, it fits, so it'll work fine. It has the handles on top that make putting it in MUCH easier.
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Old May 11, 2026 | 11:38 AM
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I installed on of these last year and it has been good so far. It came back to full charge after I accidentally totally discharged it a couple of times because my trickle charger malfunctioned when it was parked a couple of times for a couple months.

Last edited by Flame Red; Yesterday at 08:45 AM.
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Old May 11, 2026 | 11:41 AM
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Diehard's are made by Clarios. So are CostCo batteries.

Your call.
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Old May 11, 2026 | 02:17 PM
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There's only a handful of companies that make all the car batteries. So Brand A vs Brand B is pretty much useless. Just buy the top of the line from wherever and you should be golden.

Leading Automotive Battery Manufacturers [1]
  • Clarios (formerly Johnson Controls): Produces a massive share of the market, including Interstate, DieHard, Optima, and many retailer brands like those found at Walmart and Costco.
  • East Penn Manufacturing: Known for the Deka brand, they also produce Batteries Plus/X2Power and many Duralast AGM batteries.
  • EnerSys (Odyssey): Specializes in high-performance AGM batteries.
  • Stryten Energy (formerly Exide): A major manufacturer of traditional and advanced lead-acid batteries.
  • Bosch:
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Old May 11, 2026 | 02:21 PM
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I would stick with ACDelco
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Old May 11, 2026 | 02:22 PM
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Originally Posted by Vader_C5
I would stick with ACDelco
Why? They're made by Clarios.

(Google)
ACDelco batteries are primarily manufactured by Clarios (formerly Johnson Controls). While ACDelco is a brand owned by General Motors, they contract the production of these batteries to major manufacturers. [[url=https://www.gmparts.com/parts/batteries-related]1, 2, 3, 4, 5]
Key facts about ACDelco battery manufacturing:
  • Primary Manufacturer: Clarios is the main manufacturer, also producing batteries for brands like Duralast, DieHard, and Motorcraft.
  • Other Sources: Some ACDelco batteries are sourced from other manufacturers, such as East Penn Manufacturing (Deka) or, in certain markets, AtlasBX of Korea.
  • Manufacturing Locations: ACDelco batteries are produced in multiple locations globally, including the USA, Germany, and Korea.
  • GM Recommendation: They are the official original equipment (OE) battery for General Motors vehicles
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Old May 11, 2026 | 02:25 PM
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Originally Posted by Macleod52
Why? They're made by Clarios.

(Google)
ACDelco batteries are primarily manufactured by Clarios (formerly Johnson Controls). While ACDelco is a brand owned by General Motors, they contract the production of these batteries to major manufacturers. [[url=https://www.gmparts.com/parts/batteries-related]1, 2, 3, 4, 5]
Key facts about ACDelco battery manufacturing:
  • Primary Manufacturer: Clarios is the main manufacturer, also producing batteries for brands like Duralast, DieHard, and Motorcraft.
  • Other Sources: Some ACDelco batteries are sourced from other manufacturers, such as East Penn Manufacturing (Deka) or, in certain markets, AtlasBX of Korea.
  • Manufacturing Locations: ACDelco batteries are produced in multiple locations globally, including the USA, Germany, and Korea.
  • GM Recommendation: They are the official original equipment (OE) battery for General Motors vehicles
Warranty and procurement from the dealer, very easy. You may choose different, beauty of a capitalist market.
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Old May 11, 2026 | 02:38 PM
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Just because things are made by the same Companies does NOT mean they are the same.
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Old May 11, 2026 | 02:41 PM
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Originally Posted by calvins
Just because things are made by the same Companies does NOT mean they are the same.
True and just because something is OEM doesn't mean it's better either.
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Old May 11, 2026 | 06:36 PM
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I installed this DieHard Platinum AGM on Jan. 6. Seems to be a good battery. Four year warranty. The AC/Delco that I removed had no handle. There ought to be a law against that.

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Old May 11, 2026 | 06:39 PM
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I put that exact battery in my 17 GS. Works fine, no issue.
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Old Yesterday | 12:57 AM
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The C7 charging system varies the voltage level up to 15.5 volts at times and wasn't designed to charge AGM batteries. However, the overcharge is intermittent, and only goes over the AGM-spec'd level by a volt or so, and may not hurt the battery.

Bill
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Old Yesterday | 09:59 AM
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Originally Posted by Bill Dearborn
The C7 charging system varies the voltage level up to 15.5 volts at times and wasn't designed to charge AGM batteries. However, the overcharge is intermittent, and only goes over the AGM-spec'd level by a volt or so, and may not hurt the battery.

Bill
Thanks for the information, Bill. I had seen many positive comments on this forum about the AGM battery. If the car charging system diminishes the life of the battery, I am not really concerned about that because this battery has a four year warranty. My main concern is whether the charging system could be harmed by the battery and from what I can find out, that is not likely.

The other thing that drew me to the AGM battery is that it apparently has better vibration tolerance. And the rural road that I live on has an estimated 100 potholes during the 1st mile. I have contacted my county supervisor repeatedly and asked that the road be repaved. Until such time, I will probably need to go to a meeting of my county supervisors and voice my complaint and I will not feel like I have voiced it strongly enough until I am escorted out of the auditorium by a Sheriffs deputy.



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Old Yesterday | 10:09 AM
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Originally Posted by Photomania
Thanks for the information, Bill. I had seen many positive comments on this forum about the AGM battery. If the car charging system diminishes the life of the battery, I am not really concerned about that because this battery has a four year warranty. My main concern is whether the charging system could be harmed by the battery and from what I can find out, that is not likely.

The other thing that drew me to the AGM battery is that it apparently has better vibration tolerance. And the rural road that I live on has an estimated 100 potholes during the 1st mile. I have contacted my county supervisor repeatedly and asked that the road be repaved. Until such time, I will probably need to go to a meeting of my county supervisors and voice my complaint and I will not feel like I have voiced it strongly enough until I am escorted out of the auditorium by a Sheriffs deputy.
We have AGM batteries in all our GM vehicles. None of them were designed to run AGM. Both my wife's '13 Cadillac XTS and my '17 Sierra have had the AGM's since 2023 (My truck has the DieHard platinum) and have worked flawlessly so far and have not caused any damage to the vehicles. I also put an Interstate AGM in the Corvette a couple months ago. It's a 12v battery designed for automotive use so I can't think how an AGM would damage the electronics. I'd say go for it and don't worry too much about it.
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Old Yesterday | 04:32 PM
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I ran these in my Jeep Wrangler (street legal rock crawler). Dual battery setup. They worked OK, only lasted about 3 years tho. For the $$ I expected longer life from them.
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Old Yesterday | 10:10 PM
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That's the batter I bought , AC Delco all the way
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Old Yesterday | 11:37 PM
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I had an earlier version of the DieHard battery and it worked just fine. Good battery IMO.
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