Remaining range decreases faster than miles traveled

[treegarden]

I have a 2025 Air Pure, leased about 1 year ago. The car shows 334 miles of range on a full charge. Since the last charge, I've driven only 29 non-highway, <40 mph miles and remaining range shows 297.
I expected miles traveled + remaining range to equal 334, not 326. As I continue to drive, range continues to "leak out." I understand that remaining range is an estimate, but I'm concerned that after driving 8.7% of the 334-mile range, the remaining range estimate is down by about 11%. The gap gets wider the more I drive the car. Has anyone here experienced this disparity? What could be the cause?

 

[drb3333]

I have observed mine doing the same, but then lingering at 3/4 and lower. Keep going, I think.

 

[Halodde]

Miles remaining is calculated based on the EPA rated range which assumes a 4.6 mi/kWh efficiency. If you're not getting 4.6 mi/kWh or more, you're range remaining will always decrease faster than the miles traveled.

 

[Bobby]

I have a 2025 Air Pure, leased about 1 year ago. The car shows 334 miles of range on a full charge. Since the last charge, I've driven only 29 non-highway, <40 mph miles and remaining range shows 297.
I expected miles traveled + remaining range to equal 334, not 326. As I continue to drive, range continues to "leak out." I understand that remaining range is an estimate, but I'm concerned that after driving 8.7% of the 334-mile range, the remaining range estimate is down by about 11%. The gap gets wider the more I drive the car. Has anyone here experienced this disparity? What could be the cause?

The cause is simple math. The miles remaining is based on EPA estimates times percentage remaining. Since your efficiency may be lower than the EPA efficiency, “miles remaining” will drop more quickly. My suggestion is you switch over to percent remaining rather than miles remaining and do a quick calculation… Your battery size times percent remaining times efficiency and that will yield miles remaining. Much info about this can be found at www.lucidupdates.com.

 

[socktucker]

It’s dynamic based on many conditions

 

[Saksak]

The range estimate is a ballpark figure. One number can’t represent everything. For example, you’ll get wide variance driving up a mountain vs down a mountain, going 30 mph vs 70 mph, etc. Also, many short trips will use more energy than one long trip, as energy is used for conditioning vs. driving.

Plug in navigation and compare the estimated SOC (State of Charge) with your actual SOC when you arrive. The estimate will be pretty good unless weather conditions or your driving style has changed from your driving history.

The following may be helpful: efficiency-meter-and-navigation-soc-demystified. It’s for the Gravity but the concepts will be the same for the Air.

 

[Bobby]

It’s dynamic based on many conditions

Actually, I don't believe this is true. I believe it is largely based on the EPA with a little bit of the degradation factored in.

 

[Saksak]

Actually, I don't believe this is true. I believe it is largely based on the EPA with a little bit of the degradation factored in.

Is it different on the Air vs Gravity? On the Gravity, the dynamic range is based on driving history and not EPA. I can make it fluctuate greatly depending on how I drive and rain/temperature makes a difference.

 

[socktucker]

Actually, I don't believe this is true. I believe it is largely based on the EPA with a little bit of the degradation factored in.

I meant the actual range you can expect from it, sorry. Sort of like MPG is downhill with the wind.