New batteries
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Tuned
Joined: Oct 2012
Posts: 286
Likes: 156
New batteries
My Godzilla has two batteries and two alternators.
Have been thinking about upgrading my batteries to AGM. If I do this do I have to use forscan to change any of the settings? Anything I should know before I try this? Thank you!
Have been thinking about upgrading my batteries to AGM. If I do this do I have to use forscan to change any of the settings? Anything I should know before I try this? Thank you!
Fleet Mechanic
Joined: Dec 2016
Posts: 1,816
Likes: 541
From: Florida
Did yours not come with AGM from the factory? I got the same package and both of mine are AGM.
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Tuned
Joined: Oct 2012
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Likes: 156
So I checked the batteries as you suggested and found out they are indeed AGM batteries. So I will now delay my purchase as these batteries should last 3 to 5 years. Good catch on your part. Thank you so much!
Hotshot
Joined: Aug 2006
Posts: 17,398
Likes: 317
From: Whittier, CA
This has come up before. But I'm not sure a final answer was found. My '24 has a single battery and a single 250a alternator, and that battery is a flooded L/A. It seems as though Ford uses AGM in the dual battery option, regardless of alternator options, and FL/A in the standard single battery version. But like I said, not final answer. Best to always look under the hood.
Fleet Mechanic
Joined: Dec 2016
Posts: 1,816
Likes: 541
From: Florida
Awesome, sir. Glad to help.
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Laughing Gas
Joined: Jun 2023
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From: McKinney, TX
This has come up before. But I'm not sure a final answer was found. My '24 has a single battery and a single 250a alternator, and that battery is a flooded L/A. It seems as though Ford uses AGM in the dual battery option, regardless of alternator options, and FL/A in the standard single battery version. But like I said, not final answer. Best to always look under the hood.
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Logistics Pro
Joined: May 2022
Posts: 4,285
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From: Everywhere and nowhere
This was true in prior years... my 2023 single battery was a standard (flooded) battery, but my 2025 XL came with an AGM... which I believe is now OE going forward. Thank goodness. I had to change out my OEM battery in my 2023, already... it was leaking. The diesels, and other dual battery setups in prior years, and probably the high output alternators, came with AGM's previously.
Laughing Gas
Joined: Jun 2023
Posts: 1,142
Likes: 639
From: McKinney, TX
Well... and I wonder if they didn't start making the transition to AGM in 2023... and it just took that long to get the supply to catch up. I'm happy as a pig in slop my 2025 came with an AGM... I'll replace the 2023's with an AGM next go-round.
Logistics Pro
Joined: May 2022
Posts: 4,285
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From: Everywhere and nowhere
It was 23 or 24 they switched to ALL 6.7s got AGMs and then dual battery 7.3s in one of those years and single battery 7.3s were the last to get them. They must have had so many warranty claims for the discharging gasses corroding the hold down brackets and the flooded batteries just dying prematurely that they made the full switch. When they told me they would only do a direct swap from flooded to flooded I cancled my warranty claim and just paid out of pocket for the Walmart AGMs.
Laughing Gas
Joined: Jun 2023
Posts: 1,142
Likes: 639
From: McKinney, TX
It was 23 or 24 they switched to ALL 6.7s got AGMs and then dual battery 7.3s in one of those years and single battery 7.3s were the last to get them. They must have had so many warranty claims for the discharging gasses corroding the hold down brackets and the flooded batteries just dying prematurely that they made the full switch. When they told me they would only do a direct swap from flooded to flooded I cancled my warranty claim and just paid out of pocket for the Walmart AGMs.
Fleet Mechanic
Joined: Dec 2016
Posts: 1,816
Likes: 541
From: Florida
It was 23 or 24 they switched to ALL 6.7s got AGMs and then dual battery 7.3s in one of those years and single battery 7.3s were the last to get them. They must have had so many warranty claims for the discharging gasses corroding the hold down brackets and the flooded batteries just dying prematurely that they made the full switch. When they told me they would only do a direct swap from flooded to flooded I cancled my warranty claim and just paid out of pocket for the Walmart AGMs.
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