[lstodd]

Man, I've been designing solar+battery offgrid installs for a few years up to my ears into battery datasheets. And I tell you, thermal is critical for the performance.

The phone can't get the current it needs exactly because the temperature is out of spec. This is the definition of "battery stopped working".

Now if you've got a tesla-sized one, and it has a good load, then you have another problem - you have to cool it, or it shoots above 50C and you get a dead battery eventually. I can imagine a 80% charge battery of this size heating itself in a few minutes of load even from -50C. Won't get the usual 2K cycles to half capacity in those conditions, but the car will still move. A bit.

In other news, Norway is overrated wrt colds courtesy of Gulfstream. Compared to say northern Kazakhstan it has a nice mild climate.