AGM BATTERY
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Cross-Country
Joined: Aug 2016
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AGM BATTERY
Does anyone know how to tell a 2017-2019 F350 that it now has new AGM batteries instead of lead acid??
I bought a pair of Northstar AGM and in the specifications it says reprogramming is required.
Apparently there is something that needs to be changed. In the BCM via FORScan?? Some other way?? Other than going to dealer?
I could not find this discussed on here. I did find a youtube that discussed the importance of resetting the battery monitor system when a battery is changed to relearn how the alternator charges the battery.
I bought a pair of Northstar AGM and in the specifications it says reprogramming is required.
Apparently there is something that needs to be changed. In the BCM via FORScan?? Some other way?? Other than going to dealer?
I could not find this discussed on here. I did find a youtube that discussed the importance of resetting the battery monitor system when a battery is changed to relearn how the alternator charges the battery.
Lead Driver
Joined: Dec 2016
Posts: 5,650
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From: GA
Does anyone know how to tell a 2017-2019 F350 that it now has new AGM batteries instead of lead acid??
I bought a pair of Northstar AGM and in the specifications it says reprogramming is required.
Apparently there is something that needs to be changed. In the BCM via FORScan?? Some other way?? Other than going to dealer?
I could not find this discussed on here. I did find a youtube that discussed the importance of resetting the battery monitor system when a battery is changed to relearn how the alternator charges the battery.
I bought a pair of Northstar AGM and in the specifications it says reprogramming is required.
Apparently there is something that needs to be changed. In the BCM via FORScan?? Some other way?? Other than going to dealer?
I could not find this discussed on here. I did find a youtube that discussed the importance of resetting the battery monitor system when a battery is changed to relearn how the alternator charges the battery.
On top of the battery, it should say AGM.
Postmaster
Joined: Jan 2005
Posts: 4,424
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From: BC Canada
The programming is to tell the truck to register the new batteries. It’s not a programming thing that I am aware of. You could check with your dealer to be sure, ask the master diesel tech. I put new batteries in my 2017 this summer on the side of the road. No issues since. But they were not AGMs. It might be there is programming for the alternators though because chargers usually have electronic control with icy is different for deep cycle, lead acid and AGM. I believe the alternators are controlled to only charge at up to 14.4 volts, which is good for both lead acid flooded and AGM.
Postmaster
Joined: Jan 2005
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From: BC Canada
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More Turbo
Joined: Feb 2013
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I'm not familiar with the Northstar line, but I've been running East Penn Deka AGM's in all of my vehicles for the past 15 years. They run about $150-180 each, but I get 7-9 years out of them and several vehicles have seen extensive winching duty and/or are diesels as well.
I'll have to compare the specs between Northstar and Deka, but the Deka's might be a viable option for our Ford's as well.
I'll have to compare the specs between Northstar and Deka, but the Deka's might be a viable option for our Ford's as well.
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Cross-Country
Joined: Aug 2016
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Thanks for the opinions and confirming FORScan can adjust to AGM. I didn't see it on the spreadsheet which has been a valuable source of information on this site.
I'll see if I can figure that out
Thanks
I'll see if I can figure that out
Thanks
Hotshot
Joined: Jul 2013
Posts: 14,241
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we are talking differences in charge voltage and the relation ship between charge durations.
AGMs like to charge 14.6 - 14.8 and trickle at 13.6 - 13.8
lead acid like to charge at 13.8 - 14.4 and trickle at 12.9 - 13.8
most modern trucks charge at 14 - 14.5 V in SMART mode and 13.75 in dumb mode
long drives not a problem, lots of short drives with lots of restarts over a period of time could prevent the AGM from staying and higher % charge rates. this is the kind of thing that is not impossible...but difficult to do on purpose.
to test....replicate the senerios...then pull the battery and let sit over night on an insulated bench...then compare the voltage to a state of charge chart.
AGMs like to charge 14.6 - 14.8 and trickle at 13.6 - 13.8
lead acid like to charge at 13.8 - 14.4 and trickle at 12.9 - 13.8
most modern trucks charge at 14 - 14.5 V in SMART mode and 13.75 in dumb mode
long drives not a problem, lots of short drives with lots of restarts over a period of time could prevent the AGM from staying and higher % charge rates. this is the kind of thing that is not impossible...but difficult to do on purpose.
to test....replicate the senerios...then pull the battery and let sit over night on an insulated bench...then compare the voltage to a state of charge chart.
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aviatorcal
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Feb 23, 2013 09:16 AM