[phands]

Hi all,

Today, we charged our ID.4 (only 2 weeks old) up to 80% at an EA charger. When done, the range estimate was 253 miles. We then drove home, a grand total of 9.8 miles. During that trip, which was uneventful in terms of traffic and stoppages, and took around 32 minutes, the range fell from 253 to 192 miles! That's a drop of around 60 miles when traveling 10.

Anyone else seeing this sort of thing?

Paul

 

[VW TECHNICIAN]

Use search on this forum it will help you understand GOM

 

[igniztion]

It's a "Guess'O Meter" and uses your consumption of roughly the last 60 miles to estimate remaining range. (Several other variables based on you state of charge etc)

As a rule of thumb, I use 50km (31 miles) per 10% charge on the 77kwh battery pack. If driving on highways above 50 mph, the range is exponentially less.

 

[gtwhitegold]

It's also going vary considerably if other people drive the vehicle. I have much different style of driving than my wife, so the range is obviously different if she is driving vice me.

 

[gorj]

Hi all,

Today, we charged our ID.4 (only 2 weeks old) up to 80% at an EA charger. When done, the range estimate was 253 miles. We then drove home, a grand total of 9.8 miles. During that trip, which was uneventful in terms of traffic and stoppages, and took around 32 minutes, the range fell from 253 to 192 miles! That's a drop of around 60 miles when traveling 10.

Anyone else seeing this sort of thing?

Paul

I am surprised you showed 253 miles with only 80% charge. I often find that the miles displayed after a charge are a bit inflated. Once I showed 260 miles after a charge, but by the time I got to the freeway a mile or so away it had dropped to 250 miles! So things are not always as they seem. Give it some time to generate a driving pattern and you will see the GOM stabilize.

 

[Spin]

The car will need more time to learn your driving habits and it will have better accuracy. My car has improved over time.

 

[mlsstl]

I get 3.6 miles per KWH when in town and about 3.0 miles per KWH when running on the highway for extended periods. As others have noted, the range indicator is an estimate based on your recent driving history. I routinely get 250 mile estimates for an 80% charge for in-town driving, and this is reasonably accurate IF i stick to around-town driving. If I switch to highway driving, that same 80% charge will only get me around 200 miles, give or take. Also keep in mind that driving style, hills, temperature, rain, and wind speed/direction all affect range. Of course, these same factors also affect your mileage on ICE cars.

 

[phands]

Thanks to everyone who replied and educated me! Of all people, i should have reasoned that charge status has little connection to range because of differing driving conditions! The reason i should know....I'm an electronic engineer in the datacenter industry, where we sometimes use vast rooms full of batteries as backup power sources!

 

[Neil]

I typically charge at home weekly, to 80%, on my L2. Last night I charged, and this morning when I unplugged the charge status was 81% and the GOM was at 309 miles. Pure fiction.

 

[ElectricBlue]

It is interesting, most gassers have had their own GOM's for many years, with similar questionable relationships with reality. They are all, of course, trying to predict the future by looking at the past. It is a helpful indicator, but not the only one we should be looking at. (monitoring the mi/kwh seems to be a good one) When I had an ICE-mobile. I would usually monitor the gas gauge (SOC), mileage, and GOM, and be fairly confident that I could find gas within the next 20 miles or so.

But things will get better for EV's over time. We would plan our ICE trips differently if gas stations were 100 miles or so apart. Now we just don't worry about where to find gas, and eventually we will worry less about fast charging station availability.

I hope.

 

[BlueDH]

It is interesting, most gassers have had their own GOM's for many years, with similar questionable relationships with reality. They are all, of course, trying to predict the future by looking at the past. It is a helpful indicator, but not the only one we should be looking at. (monitoring the mi/kwh seems to be a good one) When I had an ICE-mobile. I would usually monitor the gas gauge (SOC), mileage, and GOM, and be fairly confident that I could find gas within the next 20 miles or so.

But things will get better for EV's over time. We would plan our ICE trips differently if gas stations were 100 miles or so apart. Now we just don't worry about where to find gas, and eventually we will worry less about fast charging station availability.

I hope.

My Jetta hybrid calculated distance to empty by using the average mpg displayed on the instrument panel and amount of gas left in the tank.

 

[igniztion]

My Jetta hybrid calculated distance to empty by using the average mpg displayed on the instrument panel and amount of gas left in the tank.

And that is exactly how it works in an EV as well. Its using average consumption and the amount of juice left on the battery.

My old diesel SUV often predicted I could drive 1100km when filled up after I had done a long trip in lower speeds, but I never got any more than 850km out of a tank because of all the short trips requiring heating, up hills etc.