Which AGM Battery?
Fleet Mechanic
Joined: Jul 2000
Posts: 1,494
Likes: 347
From: SE Iowa
When looking at all the AGM specs, the warranty was actually the last of my concerns. Sure it is nice to be able to exchange at a store that is located just about everywhere, but I'd rather buy a better battery that is less likely to put me in that situation at an inconvenient time.
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Laughing Gas
Joined: Aug 2021
Posts: 918
Likes: 514
Bob
Hotshot
Joined: Jul 2013
Posts: 14,302
Likes: 2,197
that’s what I think
lets Down grade the charge so less gas is produced
Lead Driver
Joined: Dec 2020
Posts: 8,640
Likes: 2,435
Makes sense except for the fact that prior to 2020, these trucks came default set to a target SOC at 80%....and still had issues with off gassing and corrosion.
Cross-Country
Joined: Dec 2022
Posts: 59
Likes: 33
From: NY
I have the same truck, only with single battery, why do you think it's time to replace the battery? Mileage? Hours?
Thanks,
Chan
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Laughing Gas
Joined: Aug 2021
Posts: 918
Likes: 514
When I change the battery profile to AGM do I also need to reset the BMS or will changing the battery type from flooded to AGM take care of that?
One would think that changing the battery type would reset the BMS but I thought I would ask.
Thanks,
Bob
One would think that changing the battery type would reset the BMS but I thought I would ask.
Thanks,
Bob
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Laughing Gas
Joined: Aug 2021
Posts: 918
Likes: 514
No trouble starting yet but I hunt and don’t want to be stuck anywhere so I am being proactive. I sure wish these trucks had a voltmeter from the factory. Something I will remedy in the near future.
Bob
Cross-Country
Joined: Dec 2022
Posts: 59
Likes: 33
From: NY
The truck is my daily driver and is 3 years old 12k. The reason I am replacing them is that they are sulfating to the point that the hold down brackets are showing rust spots and it isn’t holding voltage like it used to. It also is constantly going into sleep mode.
No trouble starting yet but I hunt and don’t want to be stuck anywhere so I am being proactive. I sure wish these trucks had a voltmeter from the factory. Something I will remedy in the near future.
Bob
No trouble starting yet but I hunt and don’t want to be stuck anywhere so I am being proactive. I sure wish these trucks had a voltmeter from the factory. Something I will remedy in the near future.
Bob
Bought it used earlier this yr with 21k and it's got 36k currently. I did notice my battery is sulfating as well.
If these things are programmed to charge at 120% with factory battery and considering comments the AGM should be 80-90%, what % do you intend to set yours?
TIA
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Laughing Gas
Joined: Aug 2021
Posts: 918
Likes: 514
Thanks for the quick response. Mine is not a daily but I tow a decent amount (avg ≈1k+ mi/month) and also don't want to get stranded.
Bought it used earlier this yr with 21k and it's got 36k currently. I did notice my battery is sulfating as well.
If these things are programmed to charge at 120% with factory battery and considering comments the AGM should be 80-90%, what % do you intend to set yours?
TIA
Bought it used earlier this yr with 21k and it's got 36k currently. I did notice my battery is sulfating as well.
If these things are programmed to charge at 120% with factory battery and considering comments the AGM should be 80-90%, what % do you intend to set yours?
TIA
Bob
Lead Driver
Joined: Jan 2002
Posts: 8,698
Likes: 4,818
From: Itinerant
I'm guessing that you'll be doing a little cleaning maintenance besides the battery replacement? A solution of distilled water and baking soda on the holddowns and battery ends to remove all corrosion and residual acid deposits. A quick sanding & repaint the holddowns with some black rustolem. Give the battery/ cable ends a coating of some NOCO NCP2 battery corrosion preventive. 
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Laughing Gas
Joined: Aug 2021
Posts: 918
Likes: 514
I'm guessing that you'll be doing a little cleaning maintenance besides the battery replacement? A solution of distilled water and baking soda on the holddowns and battery ends to remove all corrosion and residual acid deposits. A quick sanding & repaint the holddowns with some black rustolem. Give the battery/ cable ends a coating of some NOCO NCP2 battery corrosion preventive.
Bob
