Frunk not secure

[Fred Bombelyn]

Anybody with a 12 volt power supply can open your frunk. Don't leave anything valuable in there!
More stupid design by Ford, why not instead put 12 volt battery terminals behind the charging door to jump in case of a dead battery? With plastic covers to protect them when not in use.

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[Sikkun]

Anybody with a 12 volt power supply can open your frunk. Don't leave anything valuable in there!
More stupid design by Ford, why not instead put 12 volt battery terminals behind the charging door to jump in case of a dead battery? With plastic covers to protect them when not in use.

They can only open your frunk….if your 12v battery is dead.

 

[Maquis]

I have no words…..

 

[Mach-Lee]

Anybody with a 12 volt power supply can open your frunk. Don't leave anything valuable in there!
More stupid design by Ford, why not instead put 12 volt battery terminals behind the charging door to jump in case of a dead battery? With plastic covers to protect them when not in use.

As stated, the frunk won't open unless the 12V battery is dead.

But the dichotomy...

 

[Fred Bombelyn]

Mine does open with the battery good, so looks like a trip to the dealer for me. Another can of worms, though, the only way I can think of for this to work is a normally open relay, which means power on it at all times, another battery drain.

 

[Mach-Lee]

Mine does open with the battery good, so looks like a trip to the dealer for me. Another can of worms, though, the only way I can think of for this to work is a normally open relay, which means power on it at all times, another battery drain.

Lock your car, wait a few minutes, and keep your keys away from it when trying. It's possible they changed the software to allow it to open when the car is unlocked without the battery being dead.

 

[JohnFoxeSheets]

...the only way I can think of for this to work is a normally open relay, which means power on it at all times, another battery drain.

I think you mean a normally closed relay (i.e., closed when no power is applied) that powered open at all times unless the 12V battery is dead. That is likely how it's done, but it is likely a solid state relay with very low current required to be held closed. The SSR I used for my cargo area lighting project draws only 8mA. Sure, and parasitic power draw is still power draw, but I think it's a reasonable trade-off.

However I 100% agree with you that Ford should have included charging terminals for the 12V battery under the charge port cover. That would have made much more sense that the Rube Goldbergian system they have now. (Seems like it also would have been much less expensive.) @markboris added a 12V battery charging terminal to his Mach E (I think it was the first one he owned). There's a write up somewhere here on it.

 

[Fred Bombelyn]

I think you mean a normally closed relay (i.e., closed when no power is applied) that powered open at all times unless the 12V battery is dead. That is likely how it's done, but it is likely a solid state relay with very low current required to be held closed. The SSR I used for my cargo area lighting project draws only 8mA. Sure, and parasitic power draw is still power draw, but I think it's a reasonable trade-off.

However I 100% agree with you that Ford should have included charging terminals for the 12V battery under the charge port cover. That would have made much more sense that the Rube Goldbergian system they have now. (Seems like it also would have been much less expensive.) @markboris added a 12V battery charging terminal to his Mach E (I think it was the first one he owned). There's a write up somewhere here on it.

I stand corrected, normally closed so the contacts close when power is off. Thanks! I shouldn't post right before bedtime.

 

[Fred Bombelyn]

Lock your car, wait a few minutes, and keep your keys away from it when trying. It's possible they changed the software to allow it to open when the car is unlocked without the battery being dead.

I did this test in December, right after I bought it, and almost certainly had the key on me.

 

[RickMachE]

Mine does open with the battery good, so looks like a trip to the dealer for me. Another can of worms, though, the only way I can think of for this to work is a normally open relay, which means power on it at all times, another battery drain.

If your front leads open the frunk with a good 12v battery, you'd be the only one that has this feature...

 

[Fred Bombelyn]

If your front leads open the frunk with a good 12v battery, you'd be the only one that has this feature...

More a failure than a feature.

 

[HuntingPudel]

<SNIP>
However I 100% agree with you that Ford should have included charging terminals for the 12V battery under the charge port cover. That would have made much more sense that the Rube Goldbergian system they have now. (Seems like it also would have been much less expensive.) @markboris added a 12V battery charging terminal to his Mach E (I think it was the first one he owned). There's a write up somewhere here on it.

Yeah, Mark put the charge leads into his charge port area. The caveat is that it's meant to trickle charge the 12V battery. The wiring won't handle the load to boot up the system. I really wanted to mount my 12V jump box outside of the frunk, but I could not figure a place to put it that wasn't either ugly, super-hard to access in any event, or perhaps dangerous. ?‍?

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