Extended Range Battery Issues?

[DYohn]

This forum need a "beating a dead horse, err cold weather battery" icon.

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[dbsb3233]

I also have to assume that the reason the dealer can charge it to 250 miles versus our sub-200 is that the service department is heated, correct? We did heat our garage for a few days just to see if it made any difference, but it didn't. So, not sure what to make of that.

In part, but the bigger takeaway is to realize that the range meter (GOM) is often quite different than the REAL range you'd likely get. The GOM estimate is often overly pessimistic (vs reality) in the cold. While you will lose some (actual) range in the cold, it's usually not nearly as much as the GOM estimates. Take the GOM number with a grain of salt.

Set a trip meter to track the mi/kWh (MPK) for a week or so. Then multiply that by 88 (the battery size). That's often much more realistic. If you're averaging, say, 2.8 MPK, your range for that mileage would be 246. For you to really only have 198 mile range, your MPK would need to be averaging 2.2-2.3. While you might see some drives dip that low, it's likely your average MPK is higher (and thus your real range higher).

 

[Kamuelaflyer]

In part, but the bigger takeaway is to realize that the range meter (GOM) is often quite different than the REAL range you'd likely get. The GOM estimate is often overly pessimistic (vs reality) in the cold. While you will lose some (actual) range in the cold, it's usually not nearly as much as the GOM estimates. Take the GOM number with a grain of salt.

Set a trip meter to track the mi/kWh (MPK) for a week or so. Then multiply that by 88 (the battery size). That's often much more realistic. If you're averaging, say, 2.8 MPK, your range for that mileage would be 246. For you to really only have 198 mile range, your MPK would need to be averaging 2.2-2.3. While you might see some drives dip that low, it's likely your average MPK is higher (and thus your real range higher).

This.

My GOM based the predicted range on a rather steep climb to our house. It thinks my average is going to be 2.2 miles per kWh. The reality is that I’ve averaged 3.7 miles per kWh over the life of the vehicle. And a realistic number for the car for just the climb home is around 3.2 miles/kWh.

 

[kevC]

Did you try waiting to see if it charges above 100% to get to the 270miles guaranteed range?

 

[timbop]

Did you try waiting to see if it charges above 100% to get to the 270miles guaranteed range?

That only works when he's on the leeward side of the island!

 

[kennethjk]

33-40% winter losses, period, especially if you drive like an ICE vehicle where waste heat is free.

Do not expect less that that but you may be surprised it can be less if managed right.

Make sure tires are properly inflated.

Heat set on desired temp and lock the Fan on 1,2 or 3. (1 preferred). I avoid Auto. Use heated seats and wheel as much as possible. Set climate as cool as you can be comfy or tolerate. 65-68 saves energy.

Dress warm and wear wool socks. Bring a blanket for passengers.

Precondition the car using departure times before leaving while plugged in.

Avoid the highway/highway speeds if you can and drive a little slower.

Using this planning we keep our winter losses at around 25%-29% even at 10-20F temperatures. I have not used a blanket yet. 189-205 miles with an extended AWD in Maine. 270 EPA rating.

I cannot wait to get over 300 miles this summer.

We learned all this from having a Hyundai. Ioniq EV for 2.5 years. Only a 100-110 mile Winter range and we routinely make 96-106 mile trips even in Winter with NO CHARGERS in between.

If I told my wife to dress warm for. Car drive, wear wool sock and bring a blanket for passenger her first comment would be “why the f did you buy this” ?

 

[Ride_the_lightning]

33-40% winter losses, period, especially if you drive like an ICE vehicle where waste heat is free.

Do not expect less that that but you may be surprised it can be less if managed right.

Make sure tires are properly inflated.

Heat set on desired temp and lock the Fan on 1,2 or 3. (1 preferred). I avoid Auto. Use heated seats and wheel as much as possible. Set climate as cool as you can be comfy or tolerate. 65-68 saves energy.

Dress warm and wear wool socks. Bring a blanket for passengers.

Precondition the car using departure times before leaving while plugged in.

Avoid the highway/highway speeds if you can and drive a little slower.

Using this planning we keep our winter losses at around 25%-29% even at 10-20F temperatures. I have not used a blanket yet. 189-205 miles with an extended AWD in Maine. 270 EPA rating.

I cannot wait to get over 300 miles this summer.

We learned all this from having a Hyundai. Ioniq EV for 2.5 years. Only a 100-110 mile Winter range and we routinely make 96-106 mile trips even in Winter with NO CHARGERS in between.

Lol bring a blanket. Here passenger, put this blanket on in my $60,000 car. Are you serious? Just drive it. Then charge it when you need to.

 

[dbsb3233]

Lol bring a blanket. Here passenger, put this blanket on in my $60,000 car. Are you serious? Just drive it. Then charge it when you need to.

?

And if you have frequent drives that are father than the car will comfortably go, then don't buy a BEV. Plenty of great ICE, hybrid, and PHEV vehicles out there too.

BEVs can be great in the right situations, but they're not great fits for everyone.

 

[Zoom-Zoom]

Okay, you might very well have to draw me a picture. Are you folks saying that the GOM (whatever the heck that stands for) mileage meter is based on driving habits? Hell, if that's the case, I'd be lucky to get more than a few miles of range. I drive the thing like I stole it! All the time!

 

[mkhuffman]

Okay, you might very well have to draw me a picture. Are you folks saying that the GOM (whatever the heck that stands for) mileage meter is based on driving habits? Hell, if that's the case, I'd be lucky to get more than a few miles of range. I drive the thing like I stole it! All the time!

That is one of the factors, yes. And weather.

 

[Murse-In-Airy]

Okay, you might very well have to draw me a picture. Are you folks saying that the GOM (whatever the heck that stands for) mileage meter is based on driving habits? Hell, if that's the case, I'd be lucky to get more than a few miles of range. I drive the thing like I stole it! All the time!

The GOM is the guess-o-meter. It is the number on the dash display (also called the instrument cluster or IC by the people on here who love to confuse us with acronyms). The thing about the guess-o-meter is it’s trying to be predictive of your driving habits, normal commutes, terrains, headwinds, and typical speeds. It’s trying to plug all that in to some complex machine learning artificial intelligence algorithm and produce a number on the dash.
The problem is, people without a lot of knowledge, those of us new to EVs try to treat that as gospel. We complain the range is bad. The battery is bad. The whole car is junk. The sky is falling. I’ve been lied to. Rather than realize the number on the dash is a GUESS. Being cold out sends a lot of power to the battery to make it warm enough to use. Going fast increases drag, and tire resistance. And uses more electricity faster. So speed and cold both will lower your range. As will going uphill. Into a headwind. On wet roads.
But back to GOM problems. Because there are so many factors, so many rounding errors, Ford built a very conservative GOM algorithm. Rather than give people false confidence, they are falsely pessimistic. And Back to people that don’t understand the GUESS part, they are REALLY put off by a falsely low predicted range. (We forum addicts get to hear about it daily if not hourly).
All of this to say, watch your efficiency and battery percentage. Do your own math to get an idea of your true range.

 

[mkhuffman]

The GOM is the guess-o-meter. It is the number on the dash display (also called the instrument cluster or IC by the people on here who love to confuse us with acronyms). The thing about the guess-o-meter is it’s trying to be predictive of your driving habits, normal commutes, terrains, headwinds, and typical speeds. It’s trying to plug all that in to some complex machine learning artificial intelligence algorithm and produce a number on the dash.
The problem is, people without a lot of knowledge, those of us new to EVs try to treat that as gospel. We complain the range is bad. The battery is bad. The whole car is junk. The sky is falling. I’ve been lied to. Rather than realize the number on the dash is a GUESS. Being cold out sends a lot of power to the battery to make it warm enough to use. Going fast increases drag, and tire resistance. And uses more electricity faster. So speed and cold both will lower your range. As will going uphill. Into a headwind. On wet roads.
But back to GOM problems. Because there are so many factors, so many rounding errors, Ford built a very conservative GOM algorithm. Rather than give people false confidence, they are falsely pessimistic. And Back to people that don’t understand the GUESS part, they are REALLY out off by a falsely low predicted range.
mall of this to say, watch your efficiency and battery percentage. Do your own math to get an idea of your true range.

This is exactly correct.

Ford could have chosen to display an overly optimistic range, but instead went the other direction probably to keep people from getting stranded because they ran out of charge. If the GOM says you have 180 miles of range, and you try to drive 200 and run out of charge, you won't be blaming Ford for that mistake, right?

On the other hand, as someone else suggested, an overly optimistic range on the GOM might have been a better approach in the long run because the navigation system should tell you when you need to stop based on driving conditions. The GOM doesn't know the actual driving conditions until you start driving. Because, well, it isn't magic!

 

[Ride_the_lightning]

This is exactly correct.

Ford could have chosen to display an overly optimistic range, but instead went the other direction probably to keep people from getting stranded because they ran out of charge. If the GOM says you have 180 miles of range, and you try to drive 200 and run out of charge, you won't be blaming Ford for that mistake, right?

On the other hand, as someone else suggested, an overly optimistic range on the GOM might have been a better approach in the long run because the navigation system should tell you when you need to stop based on driving conditions. The GOM doesn't know the actual driving conditions until you start driving. Because, well, it isn't magic!

I wish I could just turn off the GOM display like I could on my Tesla.

 

[timbop]

Okay, you might very well have to draw me a picture. Are you folks saying that the GOM (whatever the heck that stands for) mileage meter is based on driving habits? Hell, if that's the case, I'd be lucky to get more than a few miles of range. I drive the thing like I stole it! All the time!

None of us know the algorithms that go into the Guess-o-meter's displayed value, but definitely temperature and driving habits go into the mix. resetting the driving history often changes it, but the operative point is that it is generally very conservative and not very accurate

 

[Nklem]

Lol bring a blanket. Here passenger, put this blanket on in my $60,000 car. Are you serious? Just drive it. Then charge it when you need to.

It was meant to be funny….LOL!

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