Jump starting ICEs

[Dkuhnke]

Is there the equivalent of a 12v battery terminal to connect jumper cables to jump start stranded ICE drivers?
Or should I throw away my jumper cables?
I also have a 600w inverter that clips to regular battery terminals or plugs into 12v accessory socket (formerly used for cigarette lighters).

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[dbsb3233]

Is there the equivalent of a 12v battery terminal to connect jumper cables to jump start stranded ICE drivers?
Or should I throw away my jumper cables?
I also have a 600w inverter that clips to regular battery terminals or plugs into 12v accessory socket (formerly used for cigarette lighters).

I think I've heard there's still supposed to be a regular 12v car battery in it too for accessories and such.

And I'll be surprised if there's not a 120v AC outlet built in. There usually is on nicer cars anymore. Our 2013 Escapes have them (although they're only 150w).

 

[hybrid2bev]

I think I've heard there's still supposed to be a regular 12v car battery in it too for accessories and such.

And I'll be surprised if there's not a 120v AC outlet built in. There usually is on nicer cars anymore. Our 2013 Escapes have them (although they're only 150w).

In the frunk area, drivers side under the plastic cover is where I think the 12v battery is. See the battery symbol on the right.

 

[Dkuhnke]

Okay, thanks. I wonder what the other symbols for for?

 

[dbsb3233]

So how does the 12V battery recharge? Does it draw power from the main battery? Does it charge from the charger? Or even regen?

 

[kdryden99]

So how does the 12V battery recharge? Does it draw power from the main battery? Does it charge from the charger? Or even regen?

There's a dc-dc convertor that charges the 12v from the larger battery.

 

[Marcel]

@Dkuhnke I would never use the 12V battery of an EV to jumpstart an ICE, there is no motor running so your 12V drains very quick

 

[hybrid2bev]

Okay, thanks. I wonder what the other symbols for for?

I think the second from the right is a notice to read the owners manual. The others I think mean ‘if you don’t know what you’re doing then don’t mess around under here’.

 

[ARK]

Building on what others have said, and what I’ve read on this forum, electric cars still have the 12V battery to run the same things that they would in an ICE. The 12V gets recharged when the car is ‘on’ or if you are plugged in. But if you parked the car unplugged and went traveling for say a month, my understanding is that the 12V is likely to be dead upon return just like in an ICE, and you would have to jump the 12V.

See here.

 

[JamieGeek]

@Dkuhnke I would never use the 12V battery of an EV to jumpstart an ICE, there is no motor running so your 12V drains very quick

There's a dc-dc convertor that charges the 12v from the larger battery.

Um...one quote cancels the other???

 

[zhackwyatt]

@Dkuhnke I would never use the 12V battery of an EV to jumpstart an ICE, there is no motor running so your 12V drains very quick

I've jumped others several times in my C-Max. While it isn't a BEV, it also doesn't have an alternator driven by an ICE. It uses a DC to DC convertor just like the Mach-E to charge the 12-volt.

 

[generaltso]

And I'll be surprised if there's not a 120v AC outlet built in. There usually is on nicer cars anymore. Our 2013 Escapes have them (although they're only 150w).

I haven’t seen any mention of a 120v AC outlet or seen one in any Mach-E pictures, so I don’t think there is one. Which is a real bummer because they could power it off the drive battery to support high wattage. My Outlander PHEV has an AC plug that‘s rated for 1500 watts. It’s been great to be able to run an extension cord from the refrigerator to the garage during power outages.

 

[SnBGC]

So how does the 12V battery recharge? Does it draw power from the main battery? Does it charge from the charger? Or even regen?

I made a short video of how the FFE works. Many EVs have a similar method.
The 12v battery does not charge when plugged in to shore power. The only way for the 12v battery to charge is when the HVB contactors are closed.
Link to video...

 

[SnBGC]

I would recommend against jump starting another vehicle with your EV unless in an emergency situation or absolutely no other option.

There is some risk of damage to your EV components if something goes wrong so just think twice before doing it.

 

[GoGoGadgetMachE]

Okay, thanks. I wonder what the other symbols for for?

"Warning! You will die from electricity unless you read the owner's manual book that you don't have because it's all electronic!"
that's a rough translation

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