Went for a drive, something wrong with predicted range

[Avendit]

So yesterday I had planned one of those trips that is near the end of what a model 3 likes to do. Edinburgh to the Cumbria and back for the day. The best charging pattern I have worked out is leave Edinburgh at 100%, get to the place for the day, then charge on the way north at the dreaded Gretna, usually arriving around 15%.

Unfortunately the trip was cancelled, but I didn't want to leave the car sitting at 100% longer than it needed. So last night I used the battery to do some pre-heating and went for a drive.

Wow, I'd forgotten what a properly pre heated, fully charged battery, 6 degrees C outside meaning the PS4s are starting to work properly drive feels like. Grins all over the place. Mine may 'only' be a P-, but I do rather like it and over the winter I'd forgotten what it was like to really drive (rather than just use) the car.

But when I got home my range had taken a hammering - why am I only seeing a predicted 160 miles from an almost full battery?

 

[Casss]

So yesterday I had planned one of those trips that is near the end of what a model 3 likes to do. Edinburgh to the Cumbria and back for the day. The best charging pattern I have worked out is leave Edinburgh at 100%, get to the place for the day, then charge on the way north at the dreaded Gretna, usually arriving around 15%.

Unfortunately the trip was cancelled, but I didn't want to leave the car sitting at 100% longer than it needed. So last night I used the battery to do some pre-heating and went for a drive.

Wow, I'd forgotten what a properly pre heated, fully charged battery, 6 degrees C outside meaning the PS4s are starting to work properly drive feels like. Grins all over the place. Mine may 'only' be a P-, but I do rather like it and over the winter I'd forgotten what it was like to really drive (rather than just use) the car.

But when I got home my range had taken a hammering - why am I only seeing a predicted 160 miles from an almost full battery?View attachment 782480

That’s 2.64 mi/kWh, trending down. So maybe not massively off based on battery health and usable capacity.

Does Projected range inc. outside temp not consider average wh/mi and trend? Or just simply average over selected distance x batt?

 

[Avendit]

On this graph its just the simple average over the length of graph selected times the amount of battery left.

 

[Niccaman]

It's a projected range based on the average use over your last 15 miles, during which time you were burning the battery through heating, right? Did you drive with a heavy foot because you wanted to burn energy?

I wouldn't use this screen for estimates, unless I was motorway driving where my last 15 miles would be representative of my use of the remainder of the battery charge

But I feel like you would know this already and so, why do you feel the estimate sucks? Looks reasonable to me if I was driving with a heavy foot

 

[Avendit]

There may have been some heavy right foot usage in this 15 miles selection admittedly . it was a good drive .

 

[Niccaman]

Haha of course how could you not

 

[andyf1140]

378 Wh/Mile would account for the lack of range

 

[pgkevet]

Depends how leaden your foot was. If the graph is to be believed as a proper reflection then it suggests a couple of periods of circa a mile when you were using more than '600wh/m' and peaking to the 900. Over such a distance the implication is that the national speed limit didn't apply....

 

[candida]

why am I only seeing a predicted 160 miles from an almost full battery?

"They all do that Sir..."


(it's more or less what I get all the time)

 

[init6]

Depends how leaden your foot was. If the graph is to be believed as a proper reflection then it suggests a couple of periods of circa a mile when you were using more than '600wh/m' and peaking to the 900. Over such a distance the implication is that the national speed limit didn't apply....

He could have been going uphill while towing a glider

 

[WannabeOwner]

why am I only seeing a predicted 160 miles from an almost full battery?

Are you overlooking the detour you made to do a Bank Job?

You got any TeslaFi/similar logged data - not very granular, but you'd be able to examine in (I think) 30 second portions

 

[Avendit]

He could have been going uphill while towing a glider

That was it! *Cough cough*

 

[Wooloomooloo]

It's predicting the range based upon the last 15 miles. If you want to know how far you'd get based on road conditions and normal driving, punch in a destination about 170 miles away and look at the "trip" chart. I've found this to be quite reliable, although it does tend to be a little conservative. My guess it the range will be higher than what you see there.