Extended Battery

[HuntingPudel]

Looking at OP’s profile, winter probably is a minor part of her problem since she’s in California. She should reset her driving history since new owners spend a lot of time with the car on trying to setup PaaK and the features.

Eh, I’m in CA and my usage when I got my car in late November has been around 2.6-2.8 mi/kWH. It’s now rising around 3. Winter range reduction is even a thing here. ??‍?

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[AKgrampy]

That definitely crossed our minds!

This is easy for you to determine. What kWhr does it charge up to. If over 68 then you have the ER. Simple as that.

 

[Camille]

This is easy for you to determine. What kWhr does it charge up to. If over 68 then you have the ER. Simple as that.

It is only charging to 30-32 kwh, per my husbands math. Our VIN says it has extended, and we have the "X" on our car! All indications say it should be XR, but the gauge says differently!
Appreciate all of your input! This is a great site!?

 

[machefan2022]

When i fill up my expedition it says i have 426 miles to Empty, then after I've driven 300 miles the gas light comes on, could i have the wrong size tank?

 

[AllenXS]

Just curious, but because there is such a noticeable difference in dimensions of the 2 batteries, is it possible to see the back end of the battery from above or below?

Are you planning to check the color of the battery to see the difference?

 

[Kamuelaflyer]

We have the extended battery, or so the window sticker says, but we haven't been able to get more than 226 miles on the dash yet. We have had the car 2 months tomorrow. Can anyone tell me where one might find a serial number or some sort of identification on the battery, so we can verify it? We would like to double check to be sure it really is extended, as it is really showing what a standard battery would be.
Appreciate any help here!

You’re doing well by my standards. I have an extended range awd premium. At 100% charge the range meter tips out at 205 miles in the summer and 198 in the winter.

The range meter is extremely conservative. Extremely. It factors in outside air temperature, hills and multitude of other things to arrive and it’s lowball guess. It also over emphasizes the conditions in the drive immediately before your current one.

A better indicator of your actual range is your average miles per kWh. That can be found on the trip page on the large screen.

In my case, despite moderate, rather Santa Barbara like, temperatures, we have a very steep climb, at times exceeding 10% slope, to 6000 ft. That’s what throws the GOM (Guess-O-Meter) off. My actual lifetime average miles/kWh is 3.7, or roughly 325 miles maximum range in flat lands. Unless I’m always driving uphill my actual range is significantly higher than 205 miles.

Examine your local driving conditions. Lengthy steep climbs? Residing in cold weather territory of the Sierra’s or Trinity’s? Lead footed exuberance at a new car? Driving the Grapevine daily? High speed commute on highway 99 in the valley?

My bet is your range guess returns to normal in about 4 weeks.

 

[AllenXS]

Here's my range expectation (in kms) over the past ten days. Our temperatures have gone from near freezing point to warm (0-13 deg C 32-54 F). 315-378 km range 195-235 miles.

 

[All Hat No Cattle]

Are you planning to check the color of the battery to see the difference?

LOL, no, I was simply wondering if it is possible to get a tape measure in the back area of the battery. It is apparent to anyone on this forum that the ER battery is measurably higher in the back than the SR.

But you knew that. Or I hope you did.

As for the gentleman with the Expedition, I can verify that several people on the F-150 forum have crawled under their vehicle with a tape measure, just to measure their fuel tank size.

Of course, truck people are more hands-on, crawl under, people.

 

[SpaceEVDriver]

It is only charging to 30-32 kwh, per my husbands math. Our VIN says it has extended, and we have the "X" on our car! All indications say it should be XR, but the gauge says differently!
Appreciate all of your input! This is a great site!?

Your husband's math is wrong or he's only doing the added charge math, not the total capacity math.

To get an estimate of your true range and to use that to get your battery capacity:
Charge to 100% or 80% or whatever. Choose an easy number so you can do the math in your head. Drive for 27 miles or whatever. Choose an easy number. I chose 27 because that's approximately 10% of your expected range.

Total range is distance driven divided by the decrease in SOC as a decimal.

If you drive 27 miles and your charge capacity drops from 100% to 91%, then you used 9% of your battery to go 27 miles. Your math would be:
27 miles / 0.09 = 300 miles.

After you have your true range, you can take that and divide it by the Miles/kWh for that same trip. If you drove 27 miles and used 9% of the battery, you might have an efficiency of, say 3.4 Mi/kWh. 300 miles/ 3.4 miles/kWh ~= 88 kWh.

HOWEVER: Battery capacity is not the same thing as a gas tank capacity. Gas tank capacity is pretty much a constant. Battery capacity is really battery chemical potential energy and chemical potential energy is dependent on a lot of factors. The two most common factors that change battery capacity are battery temperature and discharge rate. If you're accelerating hard at every stop, not only do you use more energy, you decrease your battery's chemical potential energy and thus its capacity (temporarily). So, do this test at moderate speeds without harsh acceleration.

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