Where to keep a battery jumper?

[NY_Cade69]

You might think a thief can open the frunk now using the 23A battery. Not so. The frunk will only open using this method if the 12v is completely dead.

LOL battery was dead or not any thief could get into the frunk by smashing a window, and pulling tne manual release...

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[Mach-Lee]

Here's the solution...

Keep the jump brick in the frunk.

Then you can open the frunk via the 12v lead in the front bumper. But you need a 12v source to open the frunk. So, where do you get the 12v source? Buy a 23A 12v battery on Amazon. They're cheap and about half the size of an AA battery.

Now, open that flap on the front bumper and pull out 1 of the 12v power leads. Put the 23A in a ziplock bag to keep it dry. Duct tape the bag to the 12v wire and stuff it back into the hole and replace the cover.

Done.

When your battery dies pull out the hidden battery and you can touch the two leads to the battery and the frunk will pop open.

You might think a thief can open the frunk now using the 23A battery. Not so. The frunk will only open using this method if the 12v is completely dead.

This is just an emergency method. As others have pointed out just replace your main 12v battery every 3 years. I replaced mine myself. Takes about 30 minutes. And don't let others try to convince you that you need to remove the frunk well to change the battery. You don't. I didn't.

An A23 battery will not open the frunk on the Mach-E. Too small to provide the required current. Not sure where you got that info from. You need something capable of about 12V and 2A of current.

Source: I have tested what is required to open the frunk.

 

[SonicBlue]

This is a pretty funny discussion. @Ford Motor Company should be proud of the brilliant engineering. I always figured one of those little rectangular 9v batteries was enough to trigger the frunk latch in case of emergency dead 12v. I guess not…

Agree single best defense is replacing the 12v every 3 years. I got bit last time at 39mos I think.

 

[A-A-Ron]

Both times my 12v battery died, I had enough juice to barely open a door, but not enough to start the car. Since I could get into the doors, I could grab a jump pack (the 2nd time, didn't have one the first time).

 

[NY_Cade69]

Both times my 12v battery died, I had enough juice to barely open a door, but not enough to start the car. Since I could get into the doors, I could grab a jump pack (the 2nd time, didn't have one the first time).

Wonder if there was this in the rationale to get rid of the pushers in the front dooes? Less juice used???

 

[markboris]

Wonder if there was this in the rationale to get rid of the pushers in the front dooes? Less juice used???

No I don’t think so. With a dead battery those door presenters don’t work at all. Just the door latch will open because of the capacitor in the door module. Removing the door presenters saves money and in my opinion aren’t necessary anyway.

 

[NY_Cade69]

No I don’t think so. With a dead battery those door presenters don’t work at all. Just the door latch will open because of the capacitor in the door module. Removing the door presenters saves money and in my opinion aren’t necessary anyway.

Gotcha, wasn't sure if the doors (with the presenters) would fault more easily with the capacitors. (my fronts don't have them)

 

[Jimrpa]

No problem Steven. Yes capacitors are in the door modules and will release the door latch when you push the button twice.

I work on my cars a lot (and many others) and frequently have the 12V battery disconnected for one reason or another. Never an issue opening the doors. You can open a door about 20 times before the capacitor is drained.

Does this still work on vehicles that aren’t equipped with door presenters?

 

[Jimrpa]

No I don’t think so. With a dead battery those door presenters don’t work at all. Just the door latch will open because of the capacitor in the door module. Removing the door presenters saves money and in my opinion aren’t necessary anyway.

For once, I’m going to disagree with you when I first saw the Mustang Mach-e when it was being toured around the country, I loved the door presenters! They were a “surprise and delight” thing and made the vehicle seem a bit more tech-forward and sort of futuristic. Of course, Ford is continuing down the path of “Fiesta-fication” of the vehicle, which makes me sad.

 

[markboris]

Does this still work on vehicles that aren’t equipped with door presenters?

Yes they do. The doors on ALL Mach-E's from '21-'26 will open with a dead battery providing the car is not LOCKED because of a capacitor in the door module that provides backup power to the door latch.

 

[markboris]

For once, I’m going to disagree with you when I first saw the Mustang Mach-e when it was being toured around the country, I loved the door presenters! They were a “surprise and delight” thing and made the vehicle seem a bit more tech-forward and sort of futuristic. Of course, Ford is continuing down the path of “Fiesta-fication” of the vehicle, which makes me sad.

I understand what you are saying. The Mach-E is the only car I have seen with door presenters. Lincoln and Lexus for several years have had electronic door latches that don't have door presenters. Touch a button on the backside of the door handle and the door only unlatches like all the '24 and up Mach-E front doors and now all doors on the 2026's. Jeep, Dodge and other manufacturers I believe have some models that do this too. I am only familiar with the Lincoln and Lexus since I have personally been in those cars. I like having no door presenters as there is no motor noise with opening the door and I prefer the quiet opening of just the latch releasing.

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