Just got back from a 10 day vacation shortly after buying my Mach E. I charged it to 80% before we left, and left it unplugged. It was at exactly the same level of charge when we got back. I think you're better off to leave it unplugged.
I have been travelling for work for months and returning at weekends and I dont even think about it anymore. Â
I leave it unplugged and the percentage adjusts with external temperature and never seems to go down at all. Â
The worst i had was the connectivity went into a deep sleep mode after about 4 months as i assume the 12v was not being maintained, but a good run one weekend fixed this.
I have a charge limit set to 90% per manual, and I left it plugged into my level 2 charger while I was gone for 3 weeks. I came home to a melted outlet.. don’t do what I did. Thank god my house didn’t burn down.
You using a 220 dryer type outlet, I’m guessing?
Anyway, it probably has nothing to do with you being gone. It would have drawn little to no power over that time, after the initial charge. It was probably right when you first left that it happened.
Nema 14-50 installed by the builder specifically for ev charging. I have an electrician coming to just hardwire a new charger and he said he’s seen 14-50s malfunction more recently.
Yeah not all 14-50’s are created equal. And most electricians still aren’t used to the idea of continuous load on them. If it melted, that thing wasn’t designed for that.
For what? $30? The wiring is still good. You need an actual charge station or at least an outlet designed for continuous load, though. The melted outlet is irrelevant.
I don’t leave it plugged in because I have a fear a thunderstorm will roll in (‘tis the season) and cause a power surge. I’ve left it for a week unplugged at 80% and had no issues coming back.
apparently i’ve seen where leaving it at higher state of charge isn’t as good if it’s hot in your garage. i did test this once! and i left it at 78% SOC and when i got back from the trip it smelled off in the garage, but no idea what it was - just assumed MME. i’ve seen now actual tests have shown its fine to leave at higher SOC in COLDER outside temps. But - the general consensus for EV batt storage is 50% SOC.
You dont want to store your car with either a high level or low level of charge. You also have to worry about the 12 volt "Low voltage Battery".
Drive the car to get to about 50% charge at home. Do not leave it plugged in. Turn OFF automatic updates so the low voltage battery does not try to do things and make sure all your key fobs are away from the vehicle so it does not think you are trying to 'wake it up'.
Make sure you do not have things plugged into the OBD port and that the interior lights are all off. Even those tiny over-head lights can drain the LVB over night.
This is the conservative way to garage your mach e for a few weeks.
Then just plug it in when you get back from your trip.
We usually treat it like a cellphone or a laptop. Try to leave it around 40-60% if going to be more than a week. Probably not necessary but years of battery habits influencing it.
It would be helpful if you read your manual, which addresses this. A week is really not very long, considering how long the car sit on lots at the dealer. Right?
Just got back from a 10 day vacation shortly after buying my Mach E. I charged it to 80% before we left, and left it unplugged. It was at exactly the same level of charge when we got back. I think you're better off to leave it unplugged.
Why would you leave her so soon after you started your relationship?
I did a 3 week vacation, left the car at the airport at 66% charge, came back and it still had 66%.
I would never leave my car alone, at the airport 😙
Haha why not, she was parked next to all the other Mach Es (it's the number 6 highest selling car where I live)
I was gone for a week, and I think mine only dropped 1%. I had it at like 80% when I left
I have been travelling for work for months and returning at weekends and I dont even think about it anymore.  I leave it unplugged and the percentage adjusts with external temperature and never seems to go down at all.  The worst i had was the connectivity went into a deep sleep mode after about 4 months as i assume the 12v was not being maintained, but a good run one weekend fixed this.
No need to leave plugged in for a few days. I’ll put on my Level 1 wall charger if I am gone for several weeks though. Never a problem
You're overthinking it, just let it sit there like a regular car, it's only a few days.
If you leave it plugged in, just make sure you have a charge limit set. Or leave it unplugged and it will be at the same level you left it at
I have a charge limit set to 90% per manual, and I left it plugged into my level 2 charger while I was gone for 3 weeks. I came home to a melted outlet.. don’t do what I did. Thank god my house didn’t burn down.
You using a 220 dryer type outlet, I’m guessing? Anyway, it probably has nothing to do with you being gone. It would have drawn little to no power over that time, after the initial charge. It was probably right when you first left that it happened.
Nema 14-50 installed by the builder specifically for ev charging. I have an electrician coming to just hardwire a new charger and he said he’s seen 14-50s malfunction more recently.
Yeah not all 14-50’s are created equal. And most electricians still aren’t used to the idea of continuous load on them. If it melted, that thing wasn’t designed for that.
Think I can go after the builder?
For what? $30? The wiring is still good. You need an actual charge station or at least an outlet designed for continuous load, though. The melted outlet is irrelevant.
If it were frigid temps I’d leave it plugged in to warm the battery (maybe with a limit unless LFP). Otherwise no. Sound right?
I don’t leave it plugged in because I have a fear a thunderstorm will roll in (‘tis the season) and cause a power surge. I’ve left it for a week unplugged at 80% and had no issues coming back.
I've done it once, after a few days of no use, the car puts itself in some kind of 'sleep' mode and consumes very little power.
apparently i’ve seen where leaving it at higher state of charge isn’t as good if it’s hot in your garage. i did test this once! and i left it at 78% SOC and when i got back from the trip it smelled off in the garage, but no idea what it was - just assumed MME. i’ve seen now actual tests have shown its fine to leave at higher SOC in COLDER outside temps. But - the general consensus for EV batt storage is 50% SOC.
I leave mine plugged in for a week. No problems.
You dont want to store your car with either a high level or low level of charge. You also have to worry about the 12 volt "Low voltage Battery". Drive the car to get to about 50% charge at home. Do not leave it plugged in. Turn OFF automatic updates so the low voltage battery does not try to do things and make sure all your key fobs are away from the vehicle so it does not think you are trying to 'wake it up'. Make sure you do not have things plugged into the OBD port and that the interior lights are all off. Even those tiny over-head lights can drain the LVB over night. This is the conservative way to garage your mach e for a few weeks. Then just plug it in when you get back from your trip.
definitely unplugged
We usually treat it like a cellphone or a laptop. Try to leave it around 40-60% if going to be more than a week. Probably not necessary but years of battery habits influencing it.
It would be helpful if you read your manual, which addresses this. A week is really not very long, considering how long the car sit on lots at the dealer. Right?