12 VOLTS BATTERY DIED WITHOUT WARNING!!

[shark]

If you have spent any amount of time on this forum, you have had LOTS of warnings that your 12V is going to fail.

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[WildBlueYonder]

Replaced our 12V on 2021 Premium, we took delivery in July of 21, so it was working fine at 42 months by why get a headache from dead battery. The 26R from Walmart fit, but it was tight. Watched a YouTube video, their 26R was a tad smaller than the one available locally. , it would take 30 minutes with all the tools in front of you, but I always have to hunt for the right tool for the job. Works as advertised, we'll see if I get 36 months from this battery.

 

[khbkhb]

I've always had plenty of warning ... I use something like https://a.co/d/bWHGl4Z in each vehicle.

 

[dtbaker61]

This past Friday at 7 am I had to run an errand for about 20 minutes. Came back and parked my MME GT in my garage. At 8:30 am had to go out again, pressed the “start” button but both screen were dead, the brake pedal locked, and the mode dial unresponsive. Plugged in the charger and a loud repeating thumping sound popped up. Went to the bumper to get the”jumping” cables from the port and plugged those to a 12v battery but still no power. Called Ford Road Service which sent two different trucks, and each try to jump start with their batteries to no avail. The car got towed to the dealer, who told me that their efforts to jumpstart it failed as well.
The short of it is that my 12v battery was dead as a doornail and the dealer replaced it with a new one. Luckily for me they replaced it without charge for the battery and tow. The car was 12 days and 5,000 miles away from the end of the three year warranty thus I really lucked out.
Guys and Gals as you get close to 3 years replace the battery, don’t wait. 12v battery death comes without any warning. Even with me paying for it, if I knew what I know now I would have gladly preemptively replaced the battery rather than risking it dying on me in the middle of the night in sub freezing temperatures in the middle of nowhere.
You can bet that I have on my calendar to replace the new battery October of 2027!

DON’T SAY I DIDN’T WARN YOU!!

yup.... they go without warning!

With ICE cars you can tell when "cold-cranking" becomes a problem, but with the EVs, all the internal computers suddenly go beserk when voltage drops too low.

https://www.macheforum.com/site/thr...r-12v-battery-recommended-at-36-months.36526/

 

[Fixbear]

Batteries not being accessible has been a thing for quite awhile. Back in the 90s, my work vehicle was a Chebbie Malibu. A coworker had a dead battery and jumpers, so I opened the hood to get him going. If I remember, I did finally locate the battery but it would have required tools to remove the covers. So we found someone else to give him some loaner electrons.

My Audi A6 Advant had the battery in the cowl under the wipers. My S60 Volvo had it in the trunk under the matt left of the spare tire. So it seems that they put them where ever they want with in the company guidelines.

 

[Space_Pony]

Replaced our 12V on 2021 Premium, we took delivery in July of 21, so it was working fine at 42 months by why get a headache from dead battery. The 26R from Walmart fit, but it was tight. Watched a YouTube video, their 26R was a tad smaller than the one available locally. , it would take 30 minutes with all the tools in front of you, but I always have to hunt for the right tool for the job. Works as advertised, we'll see if I get 36 months from this battery.

Is this the battery that will work? Pretty good price.
https://www.walmart.com/ip/47308800

 

[superdave80]

Is this the battery that will work? Pretty good price.
https://www.walmart.com/ip/47308800

I don't see it listed as an 'AGM' type battery. It says 'Lead acid design: Flooded'.

That and the 1 year warranty would make me leery of putting this in my MachE...

 

[HuntingPudel]

Is this the battery that will work? Pretty good price.
https://www.walmart.com/ip/47308800

The proper Ford battery is a BAGMH3. RockAuto sells them at a reasonable price, even if you're not going to return the battery for the core charge. I've heard that some Ford dealers also sell them at a pretty good price (and that some price them sky high). ??

 

[Tbird]

I just purchased the BAGMH3 from Fordparts online for $ 119. It was sent to my dealer and they installed it. $225 labor charges. Took them abt 45 minutes shop time.

 

[GreaseMonkey]

i was in a minor fender bender and my car went into shut down mode. Now the car is asleep and will not wake up. The dealer has had my car for over one month and still have no ideal how to fix it. This sucks. So you have any suggestion?

That’s one heck of a user name. Talk about commitment.

 

[Scooby24]

Sorry if this has already been answered - if we replace the 12v ourselves, is there any concern with us not resetting the 12v age or other FDRS indicators? Can we just swap the battery and be done? I don't want to have to go to the dealer for this preventative maintenance.

 

[Snakebitten]

Sorry if this has already been answered - if we replace the 12v ourselves, is there any concern with us not resetting the 12v age or other FDRS indicators? Can we just swap the battery and be done? I don't want to have to go to the dealer for this preventative maintenance.

There's nothing about replacing the 12V battery that a dealership can do that you can't do. Including resetting the BMS. I don't think you need a computer or software to accomplish that.

 

[Mach-Lee]

Sorry if this has already been answered - if we replace the 12v ourselves, is there any concern with us not resetting the 12v age or other FDRS indicators? Can we just swap the battery and be done? I don't want to have to go to the dealer for this preventative maintenance.

You can replace it yourself, just make sure to reset the BMS with the procedure in my 12V FAQ. Make sure the battery light flashes otherwise you may not have timed everything right. It's very important to reset the BMS when a battery is replaced so you can get the benefit of the increased capacity.

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