Battery impact for extended road closure?

[asrose]

I have heard of several instances of extended road closures due to the recent cold weather throughout many parts of the U.S.

I wonder what would be the impact of becoming stranded in such a situation?
Take a notional remaining trip of 80 miles to the nearest recharge (say a SC) with a current indication of 120 miles on the center panel range - with Range Mode enabled in my 2016 MS - 75.

Roughly, how long can you wait running just the environmental system (% drop in SoC per hour) in say a 15 degree ambient weather?

Thanks.

 

[DukeofURL]

Some people on YouTube have done "extreme Tesla camping" where they sleep in the car in temperatures in the single and negative digits (Fahrenheit), and lose roughly 12% for the entire night. A random per-hour guess based on this would be somewhere around 1% per hour, but this also has a lot to do with whether your battery and cabin were already heated, what temp you have it set to, fan speed, etc.

 

[asrose]

Thanks DukeofURL. Presumably the cabin and battery would already be heated (at least initially) since you wouldn't likely start out on a trip with a road closure. With the rough estimate of 1% drop per hour, say a 4 hour closure, would result in only a 3-4 mile loss? So, with an arrival buffer of at least 30 miles, you should be fine under most instances of unexpected winter driving problems?

 

[gde_eu]

I was stuck at end of last year in a winter storm. Took 7 hours to drive about 4 miles. I was using about 10 miles of range per hour with heater on (nice and warm and no range mode). So all in all I have used 170 miles of range for a typical 100 miles trip. I drive by a supercharger station but was completly covered by snow and was not reachable.

(BTW: few gas car run out of gas during that event)

 

[Xtek]

I wouldn't use %s to discuss this topic. Each battery/car will be slightly different. Do you know which car/battery size the extreme campers had?