Departure time charging

[MotorPsycho]

I traded a Chevy Bolt in on a MZmE. The Bolt had a feature where you could set the departure time and the Bolt would complete charging right before departure.

I’ve searched YouTube videos, this website, the settings on the MME and the manual and haven’t found this feature. Does the MME have departure driven charging capability?

Sponsored

 

[RickMachE]

Don't know what a MZmE is, but no, you cannot set the completion time, only the acceptable charging hours. It will start charging at the beginning of that time period.

If you want it to complete at a specific time, you could do the math, then with an adjustable EVSE lower the charge rate to try and hit that.

Setting a departure time to prep the battery, and cabin, in cold weather preps the battery and cabin, other times of the year it cools the cabin.

Simply charging to 90% daily, as the manual advises, works great.

 

[ChrisO]

I would think that setting a charge window and a departure time would accomplish pretty much the same thing, with just a little less efficiently.

The only difference would be maintaining the charge level between the end of charging and the departure time. Provided of course you give enough for it to charge.

It would also have slightly less risk of not being charged to the right amount if there was something interrupted/slowed for some reason.

 

[MotorPsycho]

Don't know what a MZmE is, but no, you cannot set the completion time, only the acceptable charging hours. It will start charging at the beginning of that time period.

If you want it to complete at a specific time, you could do the math, then with an adjustable EVSE lower the charge rate to try and hit that.

Setting a departure time to prep the battery, and cabin, in cold weather preps the battery and cabin, other times of the year it cools the cabin.

Simply charging to 90% daily, as the manual advises, works great.

MZmE is a typo I should have caught.

When I’m not driving far, I charge to 60% (supposedly doubles or triples the battery life).

I’m going to miss the departure charging feature.

 

[ChrisO]

MZmE is a typo I should have caught.

When I’m not driving far, I charge to 60% (supposedly doubles or triples the battery life).

I’m going to miss the departure charging feature.

I believe that charging to 60% will double or triple battery life is a myth. I haven’t seen anything that’s substantiates a claim like that.

in all likelihood, no matter how you charge it the battery will last longer than the rest of the car.

 

[RickMachE]

 

[MotorPsycho]

I believe that charging to 60% will double or triple battery life is a myth. I haven’t seen anything that’s substantiates a claim like that.

in all likelihood, no matter how you charge it the battery will last longer than the rest of the car.

I‘m not aware of any myths about charging to 60%. I’m only aware of a YouTube video presenting graphs generated by a study comparing different charging patterns.

I found the results of the study compelling enough to modify my charging habits.

My gut tells me charging to 60% when more range isn’t needed is unlikely to shorten the life of the battery, so why not?

 

[ChrisO]

Charging to 60% if that meets your needs is fine, but there is plenty of real world data now to prove that even without that modern batteries last hundreds of thousands of miles.

 

[RickMachE]

I‘m not aware of any myths about charging to 60%. I’m only aware of a YouTube video presenting graphs generated by a study comparing different charging patterns.

I found the results of the study compelling enough to modify my charging habits.

My gut tells me charging to 60% when more range isn’t needed is unlikely to shorten the life of the battery, so why not?

Umm, didn't you state a myth? That it doubles or triples the life of the battery?

 

[MotorPsycho]

Umm, didn't you state a myth? That it doubles or triples the life of the battery?

Nope. The study produced almost triple, est 300,000 to est 800,000. I was being conservative saying double, but I won’t always stop at 60%. Occasionally, I need 80-100%.

A possibly larger consideration for me is that I don’t put a lot of miles on my EV. The years take a toll as well.

Here’s the video link. The chart I recalled is about 10 minutes into the video.

 

[ChrisO]

I remember this this video. And at the time I too decided that maybe I wouldn't charge more than about 60% unless I needed more. But I have also seen much more studies and real-world results since. And two things changed my mind.

One is the very amount to miles we are talking about. Like I said other parts in the car are more likely to make you get rid of the car than the battery especially if you are a low mileage user. I guess if you are trying to preserve the battery for the secondary use that makes sense, but otherwise not really to me.

The second part is that the other studies I have seen the time factor has played more of a factor for someone that isn't a high mileage user, but keeps the car for a long time.

 

[RickMachE]

I will state, unequivocally, that 99.9% of EV owners don't care about the battery lasting 300,000 miles. The 0.1% that do, don't care about 800,000 miles.

I hope this was a government study and they lost all their funding with DOGE. This is simply stupid.

 

[MotorPsycho]

I started this thread about departure charging. The 60% thread gained a life of its own.

Not disputing what you said…, but a MME 4x charged to 60% has a range of approx 174 miles. My normal, retired, daily driving is between 10 and 50 miles. I almost invariably know when I’m going to have a 200+ mile day. Plus, I have an ICE vehicle available to fall back on if absolutely needed.

So why make a fuss about choosing to only charge to 60%? Why would it annoy anyone?

 

[ESJB]

To the original question.

You can set "charging times" in the car (and in the FordPass app), but also note that the car will charge outside of these time windows if they are insufficient. At least mine did.

So if you want to try, set a 1-hour charge window prior to your departure, and monitor to see what the car does, it might be what you want.

 

[Lonesparrow67]

What credentials does the author of that video possess, that allows him to make the claims that he does in the video???

Sponsored