I charged to 100% and my Lightning said 379 miles!

[RickLightning]

I have been messing with the GOM over the last few days too.

My thoughts

The GOM uses a short term rolling average, maybe 5 or 10 minutes. But, above 80% it starts adding a bias to make the range appear more optimistic (or uses the previous average from the typically slow driving the few miles before home).

I just observed my GOM actually INCREASE in range when going from 55mph roads to 35mph roads. I also observed the GOM dramatically slow its loss when turning off HVAC.

It uses hundreds of miles.

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[FloridaMan655321]

Pics or a lie, internet rules established in 1989.

I usually do a little calculation when I power up to my normal 85%. It's often over 300, sometimes over 320 pending how my drive has been as of late. When I drive to a park nearby I'm always around 4miles/kwh. I should do that for an extended period of time.

 

[RickLightning]

Yes, it adapts constantly, but it isn't based on 5 or 10 minutes as he said. If it was, it would jump drastically.

It uses hundreds of miles for the estimate when you start, then as you drive it evaluates if it is different, and adjusts. Think weighted average with more weight on the immediate driving.

 

[Piquette]

The GOM is more of a distraction than it is a navigation tool. I keep my eye on the mi/kWh and the remaining percentage battery charge. The mi/kWh varies tremendously depending on the ambient temperature and the terrain. Last February we had a day where the temperature was about -18 degrees Fahrenheit. Mi/kWh dropped down to about 1.5 and I abandoned my planned trip for the day after I tried to add some charge at my Ford dealer’s high speed DC charger and found the cables too stiff to even get them to plug into the truck. In contrast, now that warm weather has returned I am getting 2.9-3.1 mi/kWh which theoretically gives my ER Lightning 360-390 miles of range.

And I always get better mi/kWh going down hill than up. ?

 

[CD4TNF]

I just use @invertedspear 's calculator for range, battery %, and the dash mi/kWh.


https://lightningcalcs.pages.dev/?battery=131


The truck doesn't know the future, only the past.

I plug in 1.9mi/kWh and the battery % into the calculator. The 20% range it spits out I'll feel comfortable with.

 

[trev5150]

huh?

Ignore him. Seriously, just put that one on your ignore list.

 

[lipnorth]

Ignore him. Seriously, just put that one on your ignore list.

WE ARE…. PSU GRAD 1991

 

[Robert1380]

Why reset driving history? Just ignore it altogether. I wish they would just get rid of it, it's meaningless. Nobody has ever benefited from knowing how far the truck thinks they could have gone yesterday. If you drive super slow one day and it says 370, then get on the expressway, you aren't going anywhere near 370 (if driving highway speeds).

I know it's beaten to death, but man, I don't know why people care about that number. The only one that matters is battery percentage.

I think people care because many of us have been driving ICE vehicles for most our lives and are programmed to watch that “miles to empty” section of the info display. It’s hard to separate the current battery percentage from the miles. As it’s been explained to me, the percentage is really what matters and that miles function is a false sense of security. Gotta be a better way or possibly dump the miles portion altogether.

 

[MaintGrl]

I think people care because many of us have been driving ICE vehicles for most our lives and are programmed to watch that “miles to empty” section of the info display. It’s hard to separate the current battery percentage from the miles. As it’s been explained to me, the percentage is really what matters and that miles function is a false sense of security. Gotta be a better way or possibly dump the miles portion altogether.

Both of my other vehicles (Current 96 Ranger XLT and totaled 06 Taco 4x4 ) did not have any range calculations in the displays, so the GOM is new to me....

 

[Robert1380]

Both of my other vehicles (Current 96 Ranger XLT and totaled 06 Taco 4x4 ) did not have any range calculations in the displays, so the GOM is new to me....

Hell, I think every car I’ve owned over that past 20 years had “miles to empty” countdown on them. Even our police cars had em.

 

[Brent@ANParts]

EVs are so volatile with their range numbers, I wish I could comfortably go by the battery percentage instead, but my brain just won't allow it. I can understand half a tank on a gas car, but 50% on an EV could mean 75 miles or 150 miles, depending on so many factors.

 

[Robert1380]

EVs are so volatile with their range numbers, I wish I could comfortably go by the battery percentage instead, but my brain just won't allow it. I can understand half a tank on a gas car, but 50% on an EV could mean 75 miles or 150 miles, depending on so many factors.

Yep. That’s pretty much what I was saying. We are programmed and our brain says you got 319 miles on the meter then you got 319 miles of travel depending on what type of lead foot you have. Gotta learn to disregard that I guess

 

[trev5150]

WE ARE…. PSU GRAD 1991

THANK YOU
PSY ‘18 (GI Bill)

 

[Vulnox]

EVs are so volatile with their range numbers, I wish I could comfortably go by the battery percentage instead, but my brain just won't allow it. I can understand half a tank on a gas car, but 50% on an EV could mean 75 miles or 150 miles, depending on so many factors.

I don't understand this mentality, it was exactly the same with ICE vehicles. If I drove 100 miles in my PowerBoost F-150 I could get 24-25 MPG. With a 30 gallon tank, it would tell me at fill up that it estimated 750 miles on the tank.

If I then drive around a town, like let's say I was driving that 100 miles to a destination, and was averaging 18 MPG, my DTE would drop like a rock. From 750 to 500 just from me driving 20 miles and getting lower efficiency.

It's essentially the same as people complain about with the EVs. The major difference is the DTE in an EV takes more factors into account than ICE vehicles typically have, like outside temp. But outside temp impacted your ICE vehicle as well, you just had to drive and actually get the lower mileage for it to show on the DTE.

All that is to say, I don't know why people really trusted the DTE on ICE vehicles either. It was always just an estimate, and an estimate based on history. You only took it as fact because nobody ever actually drives it from full to complete empty and compares it to what it said at the start. Also since you were dealing with large numbers (750 or whatever) for the DTE, you didn't notice if it dropped to 500 as much as you notice 300 to 150.

 

[Robert1380]

I don't understand this mentality, it was exactly the same with ICE vehicles. If I drove 100 miles in my PowerBoost F-150 I could get 24-25 MPG. With a 30 gallon tank, it would tell me at fill up that it estimated 750 miles on the tank.

If I then drive around a town, like let's say I was driving that 100 miles to a destination, and was averaging 18 MPG, my DTE would drop like a rock. From 750 to 500 just from me driving 20 miles and getting lower efficiency.

It's essentially the same as people complain about with the EVs. The major difference is the DTE in an EV takes more factors into account than ICE vehicles typically have, like outside temp. But outside temp impacted your ICE vehicle as well, you just had to drive and actually get the lower mileage for it to show on the DTE.

All that is to say, I don't know why people really trusted the DTE on ICE vehicles either. It was always just an estimate, and an estimate based on history. You only took it as fact because nobody ever actually drives it from full to complete empty and compares it to what it said at the start. Also since you were dealing with large numbers (750 or whatever) for the DTE, you didn't notice if it dropped to 500 as much as you notice 300 to 150.

Yeah you make a great point. The “lie o meter” was definitely misleading as well as the mpg gauge. However, there was a way to get into the the mpg settings and make value changes to make it much more accurate. I had mine dialed in pretty tight.

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