Notices
2017 - 2022 Super Duty The 2017-2022 Ford F250, F350, F450, F550 & F600 Super Duty Pickup and Chassis Cab
Sponsored by:
Sponsored by: CARiD

AGM Battery

Thread Tools
 
Search this Thread
 
Old Aug 14, 2021 | 05:43 AM
  #16  
Squirrel13's Avatar
Squirrel13
Laughing Gas
5 Year Member
Photogenic
Photoriffic
Liked
Joined: Sep 2018
Posts: 1,115
Likes: 264
From: KY
JayCarver - I changed Battery Composition to AGM I think it was PCM plain english
 
Reply
Old Aug 14, 2021 | 05:52 AM
  #17  
B-ManFX4's Avatar
B-ManFX4
Fleet Mechanic
Shutterbug
Liked
Loved
Community Favorite
Joined: Feb 2021
Posts: 1,405
Likes: 1,171
From: East TN
Originally Posted by ford390gashog
The BMS is not the same as the vehicles under 8500GVW that are subject to CAFE restrictions. These trucks do have BMS and it is not talked about in the manual because it is not a repair as it's all software based and done through the BCM.

The BMS system is different then the F-150 and other vehicles as these trucks are not subject to CAFE restrictions. The BMS is shown on the forscan spreadsheet.

726-03-01 x*xx
726-03-01 x*xx
BMS 01 - BodyManufacMode_Cfg ENUM: 0=BUILD 1=NORM 2=TRANSPORT
23
726-04-01 x*xx xxxx xxxx
Battery_Cfg ENUM: 0=FLD 1=AGM
24
726-04-01 xxxx x*xx xxxx
BatteryTypeFactory_Cfg unsigned Undefined / Not Used
25
726-04-01 xxxx xxx* xxxx
BatteryTypeNormal_Cfg unsigned Undefined / Not Used
26
726-04-01 xxxx xxxx x*xx
BattWCCDurationCrank_Enable_Cfg ENUM: 0=FALSE 1=TRUE
27
726-04-02 x*xx xxxx xxxx
BMSInCar_Cfg ENUM: 0=Undefined / Not Used 1=LIN 2=PWM
28
726-04-02 xxx* xxxx xxxx
BMSTransportSleep_Cfg ENUM: 0=DISABLE
BMS 01 - BodyManufacMode_Cfg ENUM: 0=BUILD 1=NORM 2=TRANSPORT 23 726-04-01 x*xx xxxx xxxx Battery_Cfg ENUM: 0=FLD 1=AGM 24 726-04-01 xxxx x*xx xxxx BatteryTypeFactory_Cfg unsigned Undefined / Not Used 25 726-04-01 xxxx xxx* xxxx BatteryTypeNormal_Cfg unsigned Undefined / Not Used 26 726-04-01 xxxx xxxx x*xx BattWCCDurationCrank_Enable_Cfg ENUM: 0=FALSE 1=TRUE 27 726-04-02 x*xx xxxx xxxx BMSInCar_Cfg ENUM: 0=Undefined / Not Used 1=LIN 2=PWM 28 726-04-02 xxx* xxxx xxxx BMSTransportSleep_Cfg ENUM: 0=DISABLE
All of the Forscan stuff you posted means nothing if the electronics to actually implement BMS are not present. BMS has nothing to do with CAFE directly. It has everything to do with the Auto Start / Stop engine controls on cars and light trucks. There is no BMS hardware in 2017 - 2019 Super Duty trucks. Just the fact that the batteries are wired directly in parallel should make that obvious. Go ahead and look through the wiring book. I have.
 
Reply
Old Aug 14, 2021 | 07:46 AM
  #18  
JayCarver's Avatar
JayCarver
Laughing Gas
5 Year Member
Liked
Loved
Community Favorite
Joined: Jul 2020
Posts: 1,069
Likes: 283
Originally Posted by Squirrel13
JayCarver - I changed Battery Composition to AGM I think it was PCM plain english

Right, I guess what I’m asking is what does the truck do differently.
 
Reply
Old Aug 14, 2021 | 08:02 AM
  #19  
BillyE's Avatar
BillyE
Fleet Mechanic
5 Year Member
Liked
Loved
Community Favorite
Joined: Feb 2018
Posts: 1,592
Likes: 204
Originally Posted by JayCarver;[url=tel:20017339
20017339[/url]]Right, I guess what I’m asking is what does the truck do differently.
My offline battery chargers have settings for AGM vs Flooded vs Lithium…I’d think this could be similar. Might change charging settings or how it interprets rest voltage vs state of charge. But the differences are minimal and a traditional charger works fine with AGM. I can’t imagine it making any real world difference.
 
Reply
Old Aug 14, 2021 | 11:59 AM
  #20  
ford390gashog's Avatar
ford390gashog
Fleet Owner
20 Year Member
Liked
Loved
Community Favorite
Joined: Jan 2004
Posts: 26,007
Likes: 575
From: Brentwood,CA
Club FTE Gold Member
Deleted for content clarification....
 
Reply
Old Aug 14, 2021 | 12:14 PM
  #21  
ford390gashog's Avatar
ford390gashog
Fleet Owner
20 Year Member
Liked
Loved
Community Favorite
Joined: Jan 2004
Posts: 26,007
Likes: 575
From: Brentwood,CA
Club FTE Gold Member
Deleted.....
 
Reply
Old Aug 14, 2021 | 08:38 PM
  #22  
4wd6.7L's Avatar
4wd6.7L
Lead Driver
Liked
Loved
Community Favorite
Top Answer: 1
Joined: Dec 2020
Posts: 8,635
Likes: 2,430
Originally Posted by ford390gashog
The BMS module reset will reset the battery age to zero. Might as well do it while you are there.
The bluetooth function on my laptop was down for awhile so I tried an alternative reset procedure. 5 flashes of the high beams, 3 presses of the brake pedal, something like that. I really don't know what it did other than making the bat light flash a couple times.

The Bluetooth started working on the laptop so I connected to Forscan and now have some questions. Where can the battery life be found? Just to verify the reset. Also, where are you making the change to AGM? Bellow is what I am seeing in the BCM.




 
Reply
Old Aug 15, 2021 | 09:04 AM
  #23  
jms158bmx's Avatar
jms158bmx
5th Wheeling
5 Year Member
Liked
Joined: Oct 2020
Posts: 47
Likes: 10

Second replacement set from ford installed in January 2021 at 35k miles. Removed last week at 48k.

Installed in my 2019 6.7. Changed one at a time. No codes no resests no problems. Drove 600mi last week all good
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

Top 10 Ford Truck Tragedies

 Joe Kucinski
story-1

AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

 Brett Foote
story-2

Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

 Michael S. Palmer
story-3

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

 Verdad Gallardo
story-4

10 Best Ford Truck Engines We Miss the Most!

 Joe Kucinski
story-5

2026 Shelby F-150 Off-Road: Better Than a Raptor R?

 Brett Foote
story-6

2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

 Michael S. Palmer
story-7

10 Most Surprising 2026 Ford Truck Features!

 Joe Kucinski
story-8

Top 10 Ford Trucks Coming to Mecum Indy 2026

 Brett Foote
story-9

5 Best / 5 Worst Ford Truck Wheels of All Time

 Joe Kucinski
Old Aug 15, 2021 | 10:05 AM
  #24  
JayCarver's Avatar
JayCarver
Laughing Gas
5 Year Member
Liked
Loved
Community Favorite
Joined: Jul 2020
Posts: 1,069
Likes: 283
Is die electric grease the proper product to apply to the terminals when replacing batteries or something else?
 
Reply
Old Aug 15, 2021 | 02:03 PM
  #25  
4wd6.7L's Avatar
4wd6.7L
Lead Driver
Liked
Loved
Community Favorite
Top Answer: 1
Joined: Dec 2020
Posts: 8,635
Likes: 2,430
Originally Posted by JayCarver
Is die electric grease the proper product to apply to the terminals when replacing batteries or something else?
That is what many use. I use a light coat of Vaseline instead. Not sure if anything is really necessary when using AGM batteries, the only time I have ever had any corrosion was with non AGM batteries.
 
Reply
Old Aug 15, 2021 | 02:08 PM
  #26  
4wd6.7L's Avatar
4wd6.7L
Lead Driver
Liked
Loved
Community Favorite
Top Answer: 1
Joined: Dec 2020
Posts: 8,635
Likes: 2,430
Originally Posted by Squirrel13
I changed Battery Composition to AGM I think it was PCM plain english
I know you have a 2020, and mine is a 19, but how did your settings compare to what I posted in post #22? Which AGM setting did you choose?
 
Reply
Old Aug 15, 2021 | 07:50 PM
  #27  
Squirrel13's Avatar
Squirrel13
Laughing Gas
5 Year Member
Photogenic
Photoriffic
Liked
Joined: Sep 2018
Posts: 1,115
Likes: 264
From: KY
4wd7.7 - I will check when we get home. We’re in OR picking up the RV



 
Reply
Old Aug 16, 2021 | 10:41 AM
  #28  
iConnect's Avatar
iConnect
Mountain Pass
Liked
Loved
Community Favorite
Joined: Feb 2021
Posts: 172
Likes: 43
From: Reno, NV
What *should* change between a lead and a AGM battery is the charging profile, the AGM will work better getting a higher voltage charging up and floating. This is most important when you have a “deep discharge” AGM battery but it’s also useful for normal car batteries. I guess that the Forscan adjustment will change the profile…

https://deepcyclebatterystore.com/do...looded-vs-gel/
 
Reply
Old Oct 21, 2021 | 08:54 AM
  #29  
B-ManFX4's Avatar
B-ManFX4
Fleet Mechanic
Shutterbug
Liked
Loved
Community Favorite
Joined: Feb 2021
Posts: 1,405
Likes: 1,171
From: East TN
Actually AGM requires lower voltage than flooded cell type batteries. Look at your chart - it's right there.

What happens when you charge an AGM battery at the flooded settings? It will gas and eventually fail.

12 Volt Flooded
Bulk/Absor 14.5
Float 13.5

12 Volt AGM
Bulk/Absor 13.7
Float 13.4
 
Reply
Old Oct 21, 2021 | 10:11 AM
  #30  
wicked 2018's Avatar
wicked 2018
Posting Guru
Joined: Mar 2018
Posts: 1,055
Likes: 9
Originally Posted by B-ManFX4
Actually AGM requires lower voltage than flooded cell type batteries. Look at your chart - it's right there.

What happens when you charge an AGM battery at the flooded settings? It will gas and eventually fail.

12 Volt Flooded
Bulk/Absor 14.5
Float 13.5

12 Volt AGM
Bulk/Absor 13.7
Float 13.4
Odyssey batteries require 14.7 bulk on their charge profile and float of 13.6
 
Reply



All times are GMT -5. The time now is 03:15 AM.

story-0
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE
story-1
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-2
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-3
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-4
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-5
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-6
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-7
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE
story-8
Top 10 Ford Trucks Coming to Mecum Indy 2026

Slideshow: Here are the top 10 Fords coming to Mecum Indy 2026.

By Brett Foote | 2026-05-04 13:49:49


VIEW MORE
story-9
5 Best / 5 Worst Ford Truck Wheels of All Time

Slideshow: The 5 best and 5 worst Ford truck wheels of all time

By Joe Kucinski | 2026-04-29 16:49:01


VIEW MORE