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12V Battery #2 is down for the count

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canuckford

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Ok thanks, but I think this is a missed opportunity by ford engineers. No alternator needed and they could have charged the 12volt from either source.
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rknrbt

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I had the original 12V battery replaced in November, 2024 on my ‘22 hybrid Lariat as I was down to 36%. The original battery was replaced under the bumper to bumper warranty. Fast forward to last week when I began getting the battery saver mode on my Ford App daily, even after I drove it. Took it in to the dealer today, and it’s down to 50%. Everything in the charging system checked out OK. It will be going back to the service dept tomorrow for a new battery under the original bumper to bumper warranty.

My wife’s hybrid Escape had the same fate. The battery was replaced at the same time as my Maverick and under the 36/36 warranty. Her battery was down to 40% today, but she’s out of bumper to bumper warranty, which ended this past February. Ford says the battery that was replaced in her car in November doesn’t have a warranty. Ford Customer Service says the battery that was replaced in her car goes back to the original date the warranty on the car began over three years ago.

Funny, because I can go buy that same battery at WM and will have a warranty on it.
May I ask, how much do you drive it? My dealer blames my battery issues due to not driving it enough. I think that is Ford's stock answer for low mileage vehicles.
 
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May I ask, how much do you drive it? My dealer blames my battery issues due to not driving it enough. I think that is Ford's stock answer for low mileage vehicles.
My wife drives it to work and back Mon-Fri, five miles each way. We run errands on the weekend. But yeah, I was told by the service dept that we don’t drive it enough.
 

rknrbt

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My wife drives it to work and back Mon-Fri, five miles each way. We run errands on the weekend. But yeah, I was told by the service dept that we don’t drive it enough.
I knew it! Ford cop out answer. I am going to start replying "Ford does not hire enough qualified people including apparently this service department!"
 
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I knew it! Ford cop out answer. I am going to start replying "Ford does not hire enough qualified people including apparently this service department!"
I’ve had my Maverick since 26 Oct 22 and have just over 30K miles on it. I’ve had the battery replaced twice along with six recalls on it. My wife and I are exploring options. We are leaning on selling the Maverick. Neither one are confident that the Maverick will be trouble free. We don’t believe in buying extended warranties. They aren’t worth the paper they’re written on. We are leaning toward a hybrid Toyota, Honda , or Subaru. With the purchase prices outrageous as they are, we may just lease one rather than buy one. Payments are lower and we can get a new vehicle every 2-3 years. I talked to a few people and they said they love leasing as opposed to buying.
I love my Maverick, but an not in love with Ford.
 

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rknrbt

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I’ve had my Maverick since 26 Oct 22 and have just over 30K miles on it. I’ve had the battery replaced twice along with six recalls on it. My wife and I are exploring options. We are leaning on selling the Maverick. Neither one are confident that the Maverick will be trouble free. We don’t believe in buying extended warranties. They aren’t worth the paper they’re written on. We are leaning toward a hybrid Toyota, Honda , or Subaru. With the purchase prices outrageous as they are, we may just lease one rather than buy one. Payments are lower and we can get a new vehicle every 2-3 years. I talked to a few people and they said they love leasing as opposed to buying.
I love my Maverick, but an not in love with Ford.
I agree. I love the Maverick other than the battery issue and Ford's lack of concern to me and the issue as a whole.
 
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I agree. I love the Maverick other than the battery issue and Ford's lack of concern to me and the issue as a whole.
This is the first Ford I’ve owned since the mid ‘90’s. They aren’t any better now than they were before.
 

ScottyC

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Ford Customer Service says the battery that was replaced in her car goes back to the original date the warranty on the car began over three years ago.

Funny, because I can go buy that same battery at WM and will have a warranty on it.
Ford CS is correct - warranty of replaced (under warranty terms) is only covered for remainder of the warranty period.

Unless WM sells Motorcraft batteries - it's not the same battery, but yes, it will have a warranty on it.....from WM.
 

ZABSMAV

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My wife drives it to work and back Mon-Fri, five miles each way. We run errands on the weekend. But yeah, I was told by the service dept that we don’t drive it enough.
Tell the service department that they are full of crap. No reason we need to "drive more" to make up for a design defect by Ford.
 

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I don't understand why you think an alternator is a good thing. Not having an alternator to fail and the belts to break is a big plus. You already have 240V power at all times, that can be stepped down pretty easily to push 12V to the electronics battery. Ford screwed up the common BMS algorithm on the Maverick, Escape, Corsair, Mustang and F150, but that's easily fixed if they ever get around to admitting the software error.
If it is "easy to fix" then Ford must have some really dork-headed engineers and/or some pin-headed bean counter accountants watching over their shoulders at all times making sure not a dime extra is spent, even if it is to fix a design defect.
 
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Cherokee

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Simple reliable fix, Eliminate the lead Acid or AGM entirely.
Use the 240 volt power battery to run every dang thing I say !

Add some Battery standby control, The ICE starts and keeps the battery at optimum voltage 24/7
One more safety sensor. If you park it in your Garage the Ice will not start.

I just gave Ford a simple way to beat the tech into submission, They get to drop the problematic and quite redundant 12 volt battery saving weight and eliminating a complex battery management system that Is obviously too complex for Ford.

Dammit Man !
Ford,
Send me a cool million In small bills and I'll give you Ideas that will earn you 100 times that !
Pay off my 2024 Mav and I'll call the Idea above a gift.
:'P
 

Master Blaster

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If it is "easy to fix" then Ford must have some really dork-headed engineers and/or some pin-headed bean counter accountants watching over their shoulders at all times making sure not a dime extra is spent, even if it is to fix a design defect.
Since fixing the undercharging issue would be a pretty major cost reduction, the only other explanation that I can think of for not releasing the fix would be Ford waiting until everybody is out of warranty, making it somebody else's problem. Perhaps that's why they are putting AGM batteries in the 25s, so that most of them make it out of warranty before failing. I doubt that Ford cares about their reputation if that's the case.
 

Master Blaster

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Why suck precious power from the HV battery when running the ICE and alternator, power is essentially free.
You need about 3hp to run the typical small car alternator, about 5hp to run an older model, and up to 50hp to run some of the F150 ones. Assuming that you use the smallest alternator, that's about a 5mpg hit while cruising, and obviously less when accelerating. Clearly you want to eliminate the alternator on the Hybrid.
 

Suzukiridr14

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May I ask, how much do you drive it? My dealer blames my battery issues due to not driving it enough. I think that is Ford's stock answer for low mileage vehicles.
Maybe I'm lucky, my Hybrid Lariat delivered on 3/9/22, going on 4 years old, still has the original battery in it. It spends most of it's time in "sleep mode", but always starts when I hit the start button. I have very low mileage (under 11K at this time) so not driving enough is not the problem. Most of the time the interior lights are off when I open the door, but turn on when I hit start.
 

ZABSMAV

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Since fixing the undercharging issue would be a pretty major cost reduction, the only other explanation that I can think of for not releasing the fix would be Ford waiting until everybody is out of warranty, making it somebody else's problem. Perhaps that's why they are putting AGM batteries in the 25s, so that most of them make it out of warranty before failing. I doubt that Ford cares about their reputation if that's the case.
I think you are right. Their bean counters and attorneys probably think that if they actually announce anymore about problems with the Maverick it will immediately be reported on the evening news and directly affect sales and their bottom line. Ford has had more recalls and bad news that they had their worst loss in years. They can claim falsely that it was from tarrifs when it most assuredly was from lower sales as people pay attention to bad news about recalls.
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