Infant stuck inside the car - dead 12V battery

[Rt1AWD]

This video shouldn’t be recommended IMO, there are some issues with the information. A big one is using the wrong battery. They didn’t secure it whatsoever. They pretended they did, but since it doesn’t have a lip at the bottom it’s still loose and could lift right out. You have to get the correct battery. Also no mention of resetting the BMS which is critical after battery replacement.

This video was made by a content farm rather than a reputable source.

Of course it is not an ideal solution but It is definitely better then breaking the window and it worked. And of course In the situation when the overpriced "authentic" Ford battery is nowhere to find people would start searching for the alternative solution.

BTW could you give a little more details on the part she missed.

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[Rt1AWD]

what about this battery? Is it going to last till the death of the car?

https://www.ohmmu.com/product-page/12v-lithium-battery-for-ford-mustang-mach-e

 

[DeusEx]

what about this battery? Is it going to last till the death of the car?

https://www.ohmmu.com/product-page/12v-lithium-battery-for-ford-mustang-mach-e

Already discussed here. https://www.macheforum.com/site/thr...nt-is-lithium-a-possibility.20629/post-661234

In summary, not a good idea.

 

[Mach-Lee]

what about this battery? Is it going to last till the death of the car?

https://www.ohmmu.com/product-page/12v-lithium-battery-for-ford-mustang-mach-e

Also bad idea.

I'm not going to rehash everything here, if you want to know about replacing the 12V battery, read my FAQ for complete details and important info: https://www.macheforum.com/site/threads/12v-battery-faq.32744/

 

[Rt1AWD]

cool, thank you

 

[zvez]

First responders will have no problem breaking a window if needed.

that's exactly how it happens. I was early on the scene as a bystander, two vehicle collision, firefighters opened the door with a crowbar kind of tool.


If you happen to be in the mache in an accident, pulling the door levers all the way back manual opens them.

 

[unguessable]

Does anyone know if this 12v A23 battery trick to open the frunk shown below for Tesla would work for Mach E?

 

[Holy Driver]

I believe this is why the battery is replaced at 36 months?

I posted my question in reddit as well, maybe I get here the answer faster ...

Is there an official document that ford recommend to replace the battery every 3 years?
Here in Germany we have every 2 years an official vehicle maintenance for the mach-e.
I am driving a 2021 Mach-E, had my service in June 2023 and the battery wasn't replaced.
Now my car is 3 1/2 years old and has still the old battery and in 06/2025 is the next maintenance.

Also I started a poll in our german board.
Some voted and at the moment the majority haven't replaces the battery yet.
https://mach-e-forum.de/thread/3964-12v-batterie-schon-getauscht/?postID=123919

 

[SonicBlue]

Besides, this is a problem that anyone who has been on this forum for a while knows it's completely possible to happen.

More significantly, @Ford Motor Company knows it is a problem. The fact that FORD gave the poster the runaround, even initially, is despicable. It is the callous stupidity of large companies and bureaucracies.

 

[SonicBlue]

There are so many problems with the battery, including:

1. Ford sourced a battery for this car that routinely fails within 3 years under normal driving conditions.
2. Ford sourced a battery for which the replacement is expensive and difficult to locate (typically only found at dealers or online for close to $200).
3. Replacing the battery is much more difficult than it needs to be due to location under a stabilizer bar and multiple plastic panels with easily breakable clips.
4. The battery fails without any warning whatsoever, because Ford has provided zero diagnostic tools.
5. Ford has provided no mechanical means of opening the car.
6. The Rube Goldberg method of popping the frunk, by attaching a battery to leads hidden behind a cheap plastic port on the front bumper, is stupid engineering, doesn’t always work, and even when it does work, it only gets you halfway there because you still have to jump/replace the LVB (see #3) before the doors can be opened.

The NHTSB should deem this a safety issue and mandate a “recall.” Ford should fix ALL of the issues above, but obviously it won’t, nor would the NHTSB require it. Most likely, the NHTSB will allow Ford to simply rely on a software update to fix issue #4 for existing cars.

But for future models, @Ford Motor Company should fix ALL of the above issues.

##1-3 shouldn’t be hard at all to improve with a bigger, more standardized LVB and redesign of the stupid plastic cladding.

#4 is fixed with the software update Ford is already developing.

##5-6 is the most expensive fix - Ford adding a physical key (in the fob). But even for people who choose to use PAAK and not carry the fob, we could just use a hide-a-key in a wheel well for the physical backup.

 

[smoke20]

I understand this is an important topic, and tragic (or at least panic inducing) if it happend. However, this came from Reddit with no fact checking. Trolls live everywhere, it is always safest to look under any bridge you cross.

This is probably somewhere on a long list of things that Ford needs to "fix." No company has infinate resources, time, or headcount to fix everything all at once and there are priority lists; safety first typically. If we added up all the things in this forum we say Ford needs to "fix", my guess is it would be longer that Santa's "naughty/nice" list.

Until this ripples up to the top of their list, take ownership. Have a way to jump your car, pay attention to your maintenance schedule, and keep your roadside assistance up to date.

True, but the fairly recent update adding karaoke is just a little bit frustrating.

 

[GreaseMonkey]

There are so many problems with the battery, including:

1. Ford sourced a battery for this car that routinely fails within 3 years under normal driving conditions.
2. Ford sourced a battery for which the replacement is expensive and difficult to locate (typically only found at dealers or online for close to $200).
3. Replacing the battery is much more difficult than it needs to be due to location under a stabilizer bar and multiple plastic panels with easily breakable clips.
4. The battery fails without any warning whatsoever, because Ford has provided zero diagnostic tools.
5. Ford has provided no mechanical means of opening the car.
6. The Rube Goldberg method of popping the frunk, by attaching a battery to leads hidden behind a cheap plastic port on the front bumper, is stupid engineering, doesn’t always work, and even when it does work, it only gets you halfway there because you still have to jump/replace the LVB (see #3) before the doors can be opened.

The NHTSB should deem this a safety issue and mandate a “recall.” Ford should fix ALL of the issues above, but obviously it won’t, nor would the NHTSB require it. Most likely, the NHTSB will allow Ford to simply rely on a software update to fix issue #4 for existing cars.

But for future models, @Ford Motor Company should fix ALL of the above issues.

##1-3 shouldn’t be hard at all to improve with a bigger, more standardized LVB and redesign of the stupid plastic cladding.

#4 is fixed with the software update Ford is already developing.

##5-6 is the most expensive fix - Ford adding a physical key (in the fob). But even for people who choose to use PAAK and not carry the fob, we could just use a hide-a-key in a wheel well for the physical backup.

NHTSA. NTSB is for planes and trains. And equally useless, btw.

But yes, I agree with everything you said. It should be corrected. There are provisions to fit a larger capacity battery in there (I believe 33% more capacity). So a simplistic solution would be a means to notify before issues and replace with a higher capacity and reprogram BCM to recognize that capacity and manage to it.

Anything that requires hardware changes is out of the question till the new model in 2027.

This is the 2025 version of the HVBJB. Cause we need excitement in our lives.

 

[AZBill]

Similar (not exactly the same) issue with Rivian, FYI, they also have no key or manual entry capability with a dead battery.



GM still provides a manual key to unlock from the outside and a manual door handle, on their EVs.

 

[agoldman]

Ford, fix this period!

 

[Rusky]

Unfortunately if the battery experiences an internal short there is no warning. It happened to me on a different vehicle.

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