Not getting expected rang on a 100% charge

roamtheworld

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I have a new 2024 MME awd extended range which I have only driven 1500 miles. I normally overnight charge to 80%. Last night I set the charge limit to 100% and it only indicated of 274 miles. Shouldn’t I be getting something north of 300 miles. This is our first MME, we traded our 2022 Tesla Y longe range before it completely lost it’s value.
First off EPA estimates for many cars can be misleading and more so with EVs if driven at highway speeds since EVs benefit from regenerative braking in city driving.
We owned a 2022 Extended range AWD and consistently got 274 miles during highway driving for over 40,000 miles of ownership. As stated by others the estimations are done differently between Ford and Tesla.
If driven at lower speeds and pleasant weather you could get 300 miles of range pretty easily but you will see changes in the GOM since it’s considering you driving history and constantly changing.
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Mach1E

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The Mach-E range number will change depending on a variety of factors and should be a more realistic expectation of what you should actually get.

Tesla will always just show the EPA rated range no matter what and it doesn’t vary. But you will never hit that number in actual driving.
Yeah, that’s a Tesla thing because the EPA allows car manufacturers to choose one of two correction factor methods.

Tesla chooses the one that inflates the range number and Ford uses the conservative one.

That’s why in 3rd party independent testing the Mach E can exceed EPA numbers and the Model Y falls short.

I wish “standardized testing” was more standardized.

The EPA test though is at a variety of speeds. And since our cars are more efficient at slower speeds, don’t expect to get EPA range at a 75 mph highway cruise.
 

HuntingPudel

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Just an empirical point: My 2021 GT once saw <180 miles on the GOM at 100% HVB SoC. This was due to a few things. 1) I had been hammering the hell out of the go pedal recently. 2) It was winter. 3) I was having a lot of fun with the car (wait, that’s item 1). ??
 

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Thanks for your input
Here is an example of the variable range computation @Kamuelaflyer described…

Recently I charged my car to 80%. The GOM indicated about 213 miles or thereabouts. I also had been creating a trip plan in the car on the Ford Navi. The trip would have used mostly interstate highways and 40 or 50 miles of non interstate four lane and two lane roads. The trip starts at home at an elevation of 302’ +/-, the peak roadway el. on the route is a little over 2300’. Lots of up and down on the route. I forgot to cancel the mocked up route when I was done experimenting. When I next started the car, the navi thought we were headed for a road trip and based on the route in the navi, the car displayed a message the estimated range at 80 SOC was recomputed because of the route and was now 188 miles. Variability at work.
 

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I have a new 2024 MME awd extended range which I have only driven 1500 miles. I normally overnight charge to 80%. Last night I set the charge limit to 100% and it only indicated of 274 miles. Shouldn’t I be getting something north of 300 miles. This is our first MME, we traded our 2022 Tesla Y longe range before it completely lost it’s value.
I have the same car (Premium) and it too only now shows 275 miles at 100%. Now then, I got mine last July when average daily temps were in the 80s-90s and right now are struggling to reach 70. So I’m waiting until I have the same conditions to repeat that 100% charge and see what the guess-o-meter says then. I did see 306 miles, once, when the car was brand new, but when I did a 100% charge at around 1,000 miles, it was already down to 294. I do a 100% charge every 1,000 or so miles and it has dropped steadily each time, although all such charges have been in colder weather which most certainly has been a contribution factor. Again, all ‘indicated’ and never truly tested.
For me it’s of no practical significance since we never drive more than 200 miles in a single day unless we take a trip, whereupon we take my wife’s ICE Infiniti. So even if the decline I’ve been observing is real (and not the consequence of the battery management software needing a factory recalibration), the ’reduced’ range still meets 99.9% of our daily needs. That said, I would then judge its rate of decline as worse than expected and somewhat disappointing, and certainly worse than what Tesla and some other ‘expert’ sites would have predicted for its battery chemistry. .
 


Lori Tes

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I have a new 2024 MME awd extended range which I have only driven 1500 miles. I normally overnight charge to 80%. Last night I set the charge limit to 100% and it only indicated of 274 miles. Shouldn’t I be getting something north of 300 miles. This is our first MME, we traded our 2022 Tesla Y longe range before it completely lost it’s value.

I have the same, 2024 premium, extended range. I always charge to 85% but when I do long trips I do 100%. I set my charge to 100% yesterday because I'm going on a trip but I had to disconnect before it reached 100%. 99% gave me 397 miles. I used to get 325 miles on a full charge, so I thought 397 miles is wrong. But after going around for a bit, my dash says 94% and 363 miles, which looks right if starting with 397. I messaged my Ford advisor because I want to make sure this is accurate. No reply yet.
Ford Mustang Mach-E Not getting expected rang on a 100% charge 7e7d8d40-c5be-4c69-b9db-ba1d9ecf698a
 

RonOinAZ

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I have the AWD option and drove from Phoenix to Tucson and back yesterday, 220 miles including a short diversion along the way. All interstate miles were with BlueCruise at 75 mph and AC set to 73° because it ranged from 90° to 100° F outside . I left with a 100% charge (91 kWh usable) and the car used 74 kWh, leaving me with 17 kWh of charge by the time I got back. So, I averaged 2.97 miles per kWh.
 

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I have a new 2024 MME awd extended range which I have only driven 1500 miles. I normally overnight charge to 80%. Last night I set the charge limit to 100% and it only indicated of 274 miles. Shouldn’t I be getting something north of 300 miles. This is our first MME, we traded our 2022 Tesla Y longe range before it completely lost it’s value.
Depends on your driving. Also, what model. Premium/Select or GT. I have a 22 GT. Expected range 270. GOM will range from 255-300 (it even showed 310 once) depending on my mix of in-town and interstate. The number of times I decide to leave other cars standing still is also a factor.
 

hprose

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I have a new 2024 MME awd extended range which I have only driven 1500 miles. I normally overnight charge to 80%. Last night I set the charge limit to 100% and it only indicated of 274 miles. Shouldn’t I be getting something north of 300 miles. This is our first MME, we traded our 2022 Tesla Y longe range before it completely lost it’s value.
Added thought. My F250 range changes more dramatically the my MME. Mysteriously is shows a lower number after pulling my goose neck horse trailer. Also, it never achieves its estimate. No, I never thought it worthy of discussion until today.
 

Mach1E

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I have the same car (Premium) and it too only now shows 275 miles at 100%. Now then, I got mine last July when average daily temps were in the 80s-90s and right now are struggling to reach 70. So I’m waiting until I have the same conditions to repeat that 100% charge and see what the guess-o-meter says then. I did see 306 miles, once, when the car was brand new, but when I did a 100% charge at around 1,000 miles, it was already down to 294. I do a 100% charge every 1,000 or so miles and it has dropped steadily each time, although all such charges have been in colder weather which most certainly has been a contribution factor. Again, all ‘indicated’ and never truly tested.
For me it’s of no practical significance since we never drive more than 200 miles in a single day unless we take a trip, whereupon we take my wife’s ICE Infiniti. So even if the decline I’ve been observing is real (and not the consequence of the battery management software needing a factory recalibration), the ’reduced’ range still meets 99.9% of our daily needs. That said, I would then judge its rate of decline as worse than expected and somewhat disappointing, and certainly worse than what Tesla and some other ‘expert’ sites would have predicted for its battery chemistry. .
What rate of decline? You mean in cold weather?

All the “expert sites” as you say that test these batteries in cold weather will tell you the same thing: range drops when it’s cold.

This is normal and to be expected.

If you’re disappointed now though, will you be happy when your indicated range goes back up in warmer weather?
 

Guss-E 2021

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I've got the solution ?. I'm only jesting because your original post has really already been answered. Though I would ask do you need the car to go 300 on a charge?

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Guss-E 2021

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Tesla set the range meters so that they’d read epa rated range when at 100% soc. Ford chose to use a variable system that accounts for terrain, temperature, driving habits etc. it leads to confusion. It doesn’t help that the calculations are a bit conservative either.

In the 4 years I’ve had my mme (21, AWD ER), my car generally indicates 275 miles or so when at 100%. In reality, I could hit around 300 if I burned the last electron.

Your consternation is not uncommon,
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hprose

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I have the same car (Premium) and it too only now shows 275 miles at 100%. Now then, I got mine last July when average daily temps were in the 80s-90s and right now are struggling to reach 70. So I’m waiting until I have the same conditions to repeat that 100% charge and see what the guess-o-meter says then. I did see 306 miles, once, when the car was brand new, but when I did a 100% charge at around 1,000 miles, it was already down to 294. I do a 100% charge every 1,000 or so miles and it has dropped steadily each time, although all such charges have been in colder weather which most certainly has been a contribution factor. Again, all ‘indicated’ and never truly tested.
For me it’s of no practical significance since we never drive more than 200 miles in a single day unless we take a trip, whereupon we take my wife’s ICE Infiniti. So even if the decline I’ve been observing is real (and not the consequence of the battery management software needing a factory recalibration), the ’reduced’ range still meets 99.9% of our daily needs. That said, I would then judge its rate of decline as worse than expected and somewhat disappointing, and certainly worse than what Tesla and some other ‘expert’ sites would have predicted for its battery chemistry. .
Here is an example of the variable range computation @Kamuelaflyer described…

Recently I charged my car to 80%. The GOM indicated about 213 miles or thereabouts. I also had been creating a trip plan in the car on the Ford Navi. The trip would have used mostly interstate highways and 40 or 50 miles of non interstate four lane and two lane roads. The trip starts at home at an elevation of 302’ +/-, the peak roadway el. on the route is a little over 2300’. Lots of up and down on the route. I forgot to cancel the mocked up route when I was done experimenting. When I next started the car, the navi thought we were headed for a road trip and based on the route in the navi, the car displayed a message the estimated range at 80 SOC was recomputed because of the route and was now 188 miles. Variability at work.
The GOM isn’t to make us feel good, it isn’t to compare and compete with other EVs. It’s not to evaluate the battery on a daily basis. It isn’t to post on Facebook or wherever one posts. Its function is the same as that on a. iCE. When the “tank” gets low, fill it.
 

rreddy3

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Not exactly…I’d say the SOC is more like the fuel gauge and the GOM is more like miles to empty readout many ICE cars have. BTW, my post you’ve quoted was solely intended to illustrate the Ford navi’s evaluation of a route and making an adjustment to the GOM’s estimated range for that route compared to the GOM’s estimated range for my normal out and about driving.
 

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What rate of decline? You mean in cold weather?

All the “expert sites” as you say that test these batteries in cold weather will tell you the same thing: range drops when it’s cold.

This is normal and to be expected.

If you’re disappointed now though, will you be happy when your indicated range goes back up in warmer weather?
July 31 will mark one year in my possession. I will charge to 100% then and, assuming that outdoor temperatures are suitably equivalent, compare that new number to 306. If it’s down by more than 5% (about 15 miles) I will be disappointed but the car will still more than meet our daily needs.
I might then do a ‘reset’ of the driving history and see what it reads after say another 50 miles. I ‘assume’ that the car is constantly recalculating my average miles/KWh and using that to then calculate an expected range based. What I don’t know is how far back the mi/KWh calculation looks….is it hours, days, weeks or is it simply the totality of all miles driven since the last reset? If the latter, then my current GOM range includes months of colder weather when the 4.1 m/Kwh I enjoy in warmer weather has been diluted by months where it was as low as 2.7. If so, resetting the data when the weather is warm again will be the best comparison I can manage. I’ll post those results in another couple of months.
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