Expected mileage range drop

[Laish]

When fully charged ( when required not every time) my expected mileage has always read between 239 and 242 miles. I havent changed any driving style and actually drive quite conservitively. The last 2 charges to full have given me 190 miles expected range. The only thing that has changed is the weather. Is it clever enough to know the outside temp and account for that. 50 mile range drop seems pretty heavy . Any clues from the more educated amongst you all?

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[kmcdonal]

I too am seeing about a 50 mile drop with the weather. (Mine has gone from 300+ miles to about 250 miles.) I am watching the energy consumption more closely to see if I can deduce whether consumption truly has gone up.

 

[Pozuelo]

I too am seeing about a 50 mile drop with the weather. (Mine has gone from 300+ miles to about 250 miles.) I am watching the energy consumption more closely to see if I can deduce whether consumption truly has gone up.

I have seen a similar drop of over 10% and was worried. Don’t know whether the fact that it may be normal is worse !

 

[Scandinavian]

When fully charged ( when required not every time) my expected mileage has always read between 239 and 242 miles. I havent changed any driving style and actually drive quite conservitively. The last 2 charges to full have given me 190 miles expected range. The only thing that has changed is the weather. Is it clever enough to know the outside temp and account for that. 50 mile range drop seems pretty heavy . Any clues from the more educated amongst you all?

Sounds quite a drop alright. Do you have any idea on your battery temperature at these different occasions? And outside temperature? Did you change the cabin temperature etc?

There will be more consumption now that the cold season starts and the heater will operate compared to just the aircon.
And I assume the Taycan will operate the same as an ICE car in winter, so the aircon runs to cool and dehumidify the air and then the electric heater warms the cabin.

50 miles lost in range is more than what I have seen though. Check the average consumption per mile or km to see the difference. You will be able to see this difference in the Connect app. The history of consumption is there under all trip data.

 

[kmcdonal]

Sounds quite a drop alright. Do you have any idea on your battery temperature at these different occasions? And outside temperature? Did you change the cabin temperature etc?

There will be more consumption now that the cold season starts and the heater will operate compared to just the aircon.
And I assume the Taycan will operate the same as an ICE car in winter, so the aircon runs to cool and dehumidify the air and then the electric heater warms the cabin.

50 miles lost in range is more than what I have seen though. Check the average consumption per mile or km to see the difference. You will be able to see this difference in the Connect app. The history of consumption is there under all trip data.

I don't watch battery temperature closely. I can try keeping an eye on it.

Outdoor temperature has gone from in the 80's and 90's to being in the 40's (and dropping). Cabin temp is set the same, and I usually keep the fan on pretty low.

Good call on reviewing the consumption data in the Connect app. Over the summer I was typically in the .2 to 0.3 kWh/mi range whereas now I am in the 0.3 to 0.4 kWh/mi range. At least in the Android app, I don't see a way to get more precision or look at trends by month or week. That would be pretty interesting.

 

[NC_Taycan]

After 8 years with a Model S:

1) Heat in an ICE vehicle is free. Heaters in an EV can get their energy from only one source - the battery. Wear thick clothes and use the seat heater - it's much more efficient at keeping you comfortable than warming the air in the interior of the car.

2) Cold temps hammer Li-Ion efficiency

Given my baseline mileage at 70 deg. F, temps in the 30s were good for -20% on range and temps below 30 deg. F were good for -25%, though it was rare where I live to reach teens. Keeping the car garaged will help keep the battery warm. It may or may not warm itself up while connected to the charger (Tesla would do this).

Precipitation in the cold takes another 5% off, between higher wind (rain? sleet?) resistance and stuff splashing up onto the battery cooling it quicker (my theory).

Like driving an EV in any weather, just requires planning. If you increase your buffer by 20% - 30% depending on driving conditions, you will be fine.

 

[louv]

Keep the car plugged in. Make sure that it will pre-condition the car using “shore power”, not battery power. That helps quite a bit.

As an experiment: on a cold night (30°F) unplug. Note the SoC. Then, in the morning after the car is cold-soaked, tell the car to warm itself up to 70°F. Now look at your SoC.

 

[Laish]

Thanks for all the replies. I understand all the effects of temp , but my question was more about whether the car knows the weather has changed because I'm saying the drop is already predicted . Im not talking about actual miles per charge achieved, it has in oma couplenof days gone from reporting 240 expected miles to 190 expected miles and nothing that I have done has changed. Journey durations, charge cycles, driving style are all the same. Im hoping this isn't a permanent loss of range. Ian.

 

[Laish]

Keep the car plugged in. Make sure that it will pre-condition the car using “shore power”, not battery power. That helps quite a bit.

As an experiment: on a cold night (30°F) unplug. Note the SoC. Then, in the morning after the car is cold-soaked, tell the car to warm itself up to 70°F. Now look at your SoC.

I never charge overnight, only at my office at 11kw / hr maybe twice a week and I never pre heat or cool the car because the Porsche app is beyond useless and has not once connected to my cars climate control, nor from the online portal, but thats another story :-(

 

[louv]

I never charge overnight, only at my office at 11kw / hr maybe twice a week and I never pre heat or cool the car because the Porsche app is beyond useless and has not once connected to my cars climate control, nor from the online portal, but thats another story :-(

You can set up all the timers from within the car. And once set, as repeating timers with preconditioning, it behaves pretty well. One of the great benefits of an EV is preconditioning.

I hope it gets better behaved for you.

 

[Tonytones]

Thanks for all the replies. I understand all the effects of temp , but my question was more about whether the car knows the weather has changed because I'm saying the drop is already predicted . Im not talking about actual miles per charge achieved, it has in oma couplenof days gone from reporting 240 expected miles to 190 expected miles and nothing that I have done has changed. Journey durations, charge cycles, driving style are all the same. Im hoping this isn't a permanent loss of range. Ian.

I have noticed the same apparent ''drop'' in estimated or remaining range on my 4S, and the only logical explanation I came up with was the same as you, that it to say, that the car sitting outside corrected the range estimation based on the outside temp (and of course the influence on the battery temp as well)as we started hitting below 30F.
I hope too (and I am pretty confident) that this will be reajusted comes summertime again in a few (well, actually qui a lot of!) months!
At 4000 miles, I can't believe it's due to battery degradation (no fast charging yet in my case, limit set to 85% overnight)
Let's wait and see...

 

[kmcdonal]

I have noticed the same apparent ''drop'' in estimated or remaining range on my 4S, and the only logical explanation I came up with was the same as you, that it to say, that the car sitting outside corrected the range estimation based on the outside temp (and of course the influence on the battery temp as well)as we started hitting below 30F.
I hope too (and I am pretty confident) that this will be reajusted comes summertime again in a few (well, actually qui a lot of!) months!
At 4000 miles, I can't believe it's due to battery degradation (no fast charging yet in my case, limit set to 85% overnight)
Let's wait and see...

Keep the car plugged in. Make sure that it will pre-condition the car using “shore power”, not battery power. That helps quite a bit.

As an experiment: on a cold night (30°F) unplug. Note the SoC. Then, in the morning after the car is cold-soaked, tell the car to warm itself up to 70°F. Now look at your SoC.

@louv when you say "precondition" are you talking about the battery temp or the cabin temp? Are you suggesting doing that with a timer?

 

[Scandinavian]

I have seen a similar drop of over 10% and was worried. Don’t know whether the fact that it may be normal is worse !

There is nothing to worry about the drop in range due to the weather changing. The Taycan probably uses an algorithm to calculate your range that takes the weather into consideration. Just see how close the estimated state of charge is to the real result when using a navigation destination. It can be within a few percentage points. Of course it can differ if there is an unusual hiccup in traffic or weather.

In the picture below you can see how the efficiency varies across several tens of thousands of Model3. You can clearly see how the weather and temperatures have an effect on range. It does come back in summertime and now we are heading for a dip again! And please also remember the indication of range is just a guess. You should follow your actual consumption via the app or the MyPorsche web site for you trips instead.

 

[louv]

@louv when you say "precondition" are you talking about the battery temp or the cabin temp? Are you suggesting doing that with a timer?

I’m just suggesting how to avoid the App if it isn’t working for you.

[edited below upon learning new info! Thx Scandinavian!)
If not plugged in, Preconditioning ONLY heats the cabin (and seats and steering wheel)

If plugged in, depending on Ambient temperature, it will also pre-heat the traction battery.

 

[Doc B]

First time caller, long-time listener. Firstly, just wanted to say how much I’ve appreciated all of the informative posts on this forum, which I’ve been reading carefully since ordering my Taycan Turbo way back in 2019. Delivery in July after the UK’s first lockdown finished, so I’ve had it over three months now. Unfortunately, have only managed to register 2,000 miles. As most on this forum have said, the car is an absolute joy to drive. However, I’ve encountered a whole host of problems since delivery. Most have been minor – e.g. PCM issues, Apple Music not working, rattles, rear spoiler misaligned etc, but the range drop-off that others are also seeing is really concerning, especially since over here (UK) the temperatures haven’t quite hit the Wintery numbers yet.

When I first took delivery of the car back in July, I was getting upward of 280 miles (projected on the basis of miles driven per percentage of battery used). That was at the height of Summer, when we had a number of days above 30C (above 86F), and so the A/C was running pretty much constantly. As we moved into August and September, with slightly lower temperatures in the 20Cs (70Fs), I was expecting to see an increase in range since the A/C was hardly running, but, instead, saw a decrease in range. Since then, the range has continued to quite drastically and progressively decline. Currently, I am rarely seeing more than 200 miles of full range, and a recent short trip of 10 miles used up 6% of the battery. I can understand getting low range in freezing temperatures, but it has been a really mild Autumn/Winter over here so far, and the lowest outside temperature while I’ve been driving has been 12C (54F). I’ve attached a graph showing the increase in consumption, using the consumption information from the Porsche Connect app. The average external temperature figures on there are a little bit back-of-the-envelope, since I’ve used the average day-time temperatures as recorded by a weather website, and the last month’s data is a work in progress and only comprises 13 days (so will be disproportionately impacted if I happened to drive on a colder than usual day). The range line has just been extrapolated from the consumption figures. I’ve also started looking at the consumption while driving more carefully now, and when we start a trip, the consumption is usually over 120kwh/100miles, and gradually gets lower but will only get below 40/45kwh/100miles once we’ve driven at least 30/40 miles. I was fully expecting a range drop-off in the Winter, but this seems quite drastic when we haven’t even hit the really cold stuff yet. There is also the possibility it is a software issue, since I am not sure the car is determining the battery percentage accurately at times – for example, we’ve had several instances of parking the car, and returning less than half an hour later with the percentage being 2% less than when we parked, even though the car was turned off (with no cool/heat), and also occasions when the car has been charging, and the range estimate has increased by, say, 15 miles, but the percentage has only gone up by 1%, only to right itself 24 hours later by adding the extra percentages. Anyone else seeing this as normal behaviour? In particular, anyone in the UK with a Turbo seeing such low range figures in November?

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