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 > How to start a Tesla at -34C

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Bumpyroad

Virginia

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Joined: 12/01/2005

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Posted: 11/16/20 06:10am Link  |  Quote  |  Print  |  Notify Moderator

Groover wrote:

Bumpyroad wrote:

I see that warm up test was done with the vehicle plugged in. what does this do with range when you run the batteries down and are not plugged in?.
bumpy


A large number of ICE engines would have the range reduced to zero at that temp because they won't start if they haven't been plugged in.


we used to have a light bulb on under the hood on those coldest days.
bumpy





thomas201

Eastern Panhandle WV

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Posted: 11/16/20 06:31am Link  |  Quote  |  Print  |  Notify Moderator

Even after all these years, still the best:

https://www.teslarati.com/tesla-battery-range-sub-zero-snowy-conditions/


Want to kill your EV range. Stay at a hotel with no plugs (no shore power preheat), melt snow off the car, then drive in the snow (those low rolling resistance tires are no longer low).

Until charging stations are faster and more common, you need to "figger" this in. Does anyone know of another table showing temperature, range and special conditions like shore power preheat or not?

Reisender

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Posted: 11/16/20 06:55am Link  |  Quote  |  Print  |  Notify Moderator

thomas201 wrote:

Even after all these years, still the best:

https://www.teslarati.com/tesla-battery-range-sub-zero-snowy-conditions/


Want to kill your EV range. Stay at a hotel with no plugs (no shore power preheat), melt snow off the car, then drive in the snow (those low rolling resistance tires are no longer low).

Until charging stations are faster and more common, you need to "figger" this in. Does anyone know of another table showing temperature, range and special conditions like shore power preheat or not?


I don’t know another table and can’t say I’ve dealt with minus 30. But we routinely do minus 15 to minus 20 cold soak not plugged in. Not a big deal really. Car doesn’t really act any differently other than the hit to range. I would say a typical model 3 AWD would have a real world range of around 400 km in those conditions. We haven't done a lot of road tripping in those conditions though soooooo..... Fast chargers are ubiquitous in this province (or at least where we travel) so can’t see it being a problem for us. If you live in more isolated areas and have to do long road trips in winter though, an EV might not be the right way to go...yet. [emoticon].

Side note. Our Grand Cherokee lost a lot of range in winter as well. Rolling resistance etc. Not as much as our Tesla or leaf though. Overall the Tesla is a much better winter vehicle for us. Miss the big hatch on the Grand Cherokee sometime.

* This post was edited 11/16/20 10:12am by Reisender *

PA12DRVR

Back in God's Country

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Posted: 11/16/20 10:35am Link  |  Quote  |  Print  |  Notify Moderator

"Long time ago bush pilots up north used to drain oil and heat it over fire before puring it back in the engine.
Lots o fun flying in those early days"

It wasn't that long ago.... I've pretty much stopped cold weather flying in the past 10 years but before that, when venturing to the cabin in the winter, I'd drain the warm oil and pull the battery out to take into the cabin on the odd instance when I was out there in -30 or colder. Warmer than that, a good pre-heat would do it, but having warm oil sure reduced the pre-heat time and stress on the engine.


CRL
My RV is a 1946 PA-12
Back in the GWN

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