Battery drainage in cold weather ?

[icpps]

I will pesent my scenario, which is this: travelling and leaving my M3 at the airport for 21 days in January. Here in Finland it can occasionally be something like —20 to —30 deg (Celsius) then. How many kilometres would I lose during those 3 weeks at most?

 

[GigaGrunt]

Set to 80% charge, leave plugged in.

 

[icpps]

No possibility to charge at my airport...

 

[al503]

Take a taxi and leave the M3 at home?

 

[Tam]

...lose...

Bjørn Nyland left his Model S 27 days in an airport parking structure with the temperatures of 8C to -5C, 47F to 23F

347-246km=101km/27days= 3.7 km / day or 2.34 miles / day.

216 miles - 153 miles = 63 miles loss. 90%->70% or 20% loss.

This was before the age of TeslaCam and Sentry Mode energy hog.

 

[KenC]

I will pesent my scenario, which is this: travelling and leaving my M3 at the airport for 21 days in January. Here in Finland it can occasionally be something like —20 to —30 deg (Celsius) then. How many kilometres would I lose during those 3 weeks at most?

Best thing to do is do a test in December, and then decide how to proceed. Every car and battery is different.

 

[darth_vad3r]

I will pesent my scenario, which is this: travelling and leaving my M3 at the airport for 21 days in January. Here in Finland it can occasionally be something like —20 to —30 deg (Celsius) then. How many kilometres would I lose during those 3 weeks at most?

-21% if you turn Sentry Mode off, SoC 0% with Sentry mode on.

 

[darth_vad3r]

Bjørn Nyland left his Model S 27 days in an airport parking structure with the temperatures of 8C to -5C, 47F to 23F

347-246km=101km/27days= 3.7 km / day or 2.34 miles / day.

216 miles - 153 miles = 63 miles loss. 90%->70% or 20% loss.

This was before the age of TeslaCam and Sentry Mode energy hog.

Hmmm... something doesn’t add up.

Bjørn’s math on % is wrong.

If 246km is 70%, that implies 351 is 100%, but his 347 looked nowhere that close to 100%.
If 347 was 90%, that implies 386 is 100% and 270 is 70%, meaning 246 would be 64% for a 26% loss.

S85 is 407-438km range. He is probably displaying typical km for range though. In any case, seems like the advertised 1% per day.