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Took to a FORD dealer who had it for 3 weeks. FORD said the problem was AGM Batteries! You need to replace with LEAD ACID Batteries.
So you are telling me 1930's technology in a $100k truck.
Who is right and who is wrong?
I am on 3rd battery, all AGMs
Originally Posted by acdii
Passenger batteries fail first, they sit right next to the EGR. What does that tell you? When one battery goes it can take the other with it in time. What exactly is killing the batteries? Over charge, under charge, dead cells? If it was your second set, well, quite possible since the truck is 6 years old now, average life span appears to be 3 years from reports of replaced batteries.
Sounds like OP Isn't following battery rotation, probably hasn't check the owner's manual.
With all the crap running in the background of these trucks now, cannot imagine why they're eating batteries on a low mileage truck.
Even batteries from the past to batteries of today with companies cutting corners to make a profit or more likely just giving the majority of buyers a "cheap" battery at purchase of replacement. Giving the people what they want.
What really stands out to me though 3 WEEKS for a battery issue. How do people go without a vehicle for 3 weeks for battery replacement.
aside from the above….another thing I like about EFB is the sulfate management …EFB has an area under the plates that serves as a recirculating acid pool…when sulfates drop to the bottom they are recirculated…thus preventing watering down of acid as crystals form.
in regular lead acids batteries the sulfates drop to the bottom and are trapped by the lower portion of the cell plates….sulfate crystals form which water down the acid as crystals form…eventually these crystals will short out individual cells.
With all the crap running in the background of these trucks now, cannot imagine why they're eating batteries on a low mileage truck.
Even batteries from the past to batteries of today with companies cutting corners to make a profit or more likely just giving the majority of buyers a "cheap" battery at purchase of replacement. Giving the people what they want.
What really stands out to me though 3 WEEKS for a battery issue. How do people go without a vehicle for 3 weeks for battery replacement.
The obvious question is: What is the parasitic draw on the truck when it is parked and the modules have gone to sleep?
On my 2019 cclb 6.7 KR , with 52,000 miles on it , I have changed the batteries once about 2 years ago . I usually only drive the truck on weekends and not always every weekend . One day my batteries just did nothing . Totally dead .
The original batteries lasted about 3.5 years and would go in to the power saving mode quite frequently and I would not be able to use the app to start it . I replaced them with the Duracell #65 AGM batteries . I never changed any settings in the charge profile ( in fact I have never even looked at the charge profile) .
Now it almost never goes into the power saving mode . It almost sounds like your truck is not going into the power saving mode . There are tons of small parasitic drains on these trucks .
The original battery in my 2004 JD 4310 lasted about 3.5 years (unusual in my experience with JD). Replacement JD battery is still going strong after 17 years. Hope I didn't just jinx myself.
I would bet either overcharging or you have a heavy amp draw? Do you drive your truck ~30 min or more often, weekly, or do you drive short trips, ~10-min, on a weekly basis?
