Battery Heater Not Enabling via App

[EamonnJMaguire]

Any news on the fix? This has basically broken my car... I live in Vermont and even if I prime the climate my battery is stone cold. I waste hours at the charger. Last winter was no issue because the battery heater would kick on from the app... Tesla please fix this! My $94,000 car is almost useless!

 

[EamonnJMaguire]

Ok well that would be more credible source indeed.

I hope so. My car is basically not usable without being able to preheat the battery.

 

[SSedan]

Are you using scheduled departure or manually charging just before leaving?

 

[EamonnJMaguire]

Are you using scheduled departure or manually charging just before leaving?

Neither, yet I shouldn't have to. Last winter the battery heater would simply turn on when I remotely started climate. It even worked earlier this winter too. A recent update broke it!

 

[SSedan]

Yes a recent update changed it. But they added scheduled departure which seems to time the charge to end half an hour before you leave and turns on climate control.

It is nice to have it auto warm the cabin and not to have to adjust charge start to time charge ending.

They also raised the minimum pack temp.to see a particular Regen rate.

 

[taraquin]

Several people report preheating warms battery with 40.2.3, I updated to that but it's not working so far :/

 

[EamonnJMaguire]

CONFIRMED holiday update has fixed this issue. Battery heater kicks on from app when preheating once again! Merry holidays.

 

[EamonnJMaguire]

CONFIRMED holiday update has fixed this issue. Battery heater kicks on from app when preheating once again! Merry holidays.

2019.40.51.1

 

[glhs272]

2019.40.51.1

Can you report if there is any improvement in relation to Supercharging rates on "Classic" Model S cars (Original 60, 85, & 70)?

 

[g1000x]

CONFIRMED holiday update has fixed this issue. Battery heater kicks on from app when preheating once again! Merry holidays.

Good to hear, now my car just needs to download it...

 

[random155]

CONFIRMED holiday update has fixed this issue. Battery heater kicks on from app when preheating once again! Merry holidays.

What year and version model s do you have?

 

[Snowstorm]

I just tried it and it still works. Outside temperature is not battery temperature. Especially if you charged the car over night the battery is definitely warmer than the ambient temperature. Charging always warms up the battery. But even without charging, it takes quite some time for the battery to drop to ambient temperature when it's cold outside.
Here is a screen shot of the app and some CAN bus data.

The battery heater icon came on when I started the climate control from the app. It took one or two minutes for it to kick in, though. On the CAN bus you can see 'coolant heater' at 100% meaning it is heating at full capacity (around 6 kW). You can see the actual cell temperatures (min/average/max) and you can see the 'battery inlet' temperature. It shows the temperature of the coolant liquid just before it enters the battery.

The car was parked outside (not in a garage), ambient temps were -6 C at night. I only had to charge a little that night. Notice how the battery temperature is 10-12 C above ambient temperature.
View attachment 484201

It would be great if Tesla made a GUI version of car status app that can display all that info into be touch screen.

 

[taraquin]

2019.40.51.1

Hope it becomes available soon. Currently using my local SC to heat battery :/ - 10C is terrible for range with no regen.

 

[g1000x]

I just got 2019.40.50.7, hopefully this brings back the battery pre-heat. Will report back.

 

[wodnik7]

Please report... I am hoping to get it back..

 

[pjw65]

Just seen Battery-Heater in App!
Enable Heater in App AND start charging (in my case with 3x13A,230V = 9 kW). Battery-Symbol was visible in App, but only for 3 minutes. That is not long enough!

S85 (2015) Version 2019.40.2.3

 

[g1000x]

I can confirm the latest update fixes this issue!!

2019.40.50.7 75D

Battery pre-heat is back on the menu!

 

[Spacey73]

I have not got the update yet, but I thought that the rear section of the car going red was the battery warming up?

 

[g1000x]

I have not got the update yet, but I thought that the rear section of the car going red was the battery warming up?

The only indication of the battery heating is the actual battery symbol in the top right when you activate climate. It usually turns on a minute or so after you activate climate.

 

[Spacey73]

Have you not noticed the rear parcel shelf light up a very dim red though before?