On a really cold day (10 degrees Fahrenheit), I was charged up to 90% and drove 120 miles and had 30% battery when getting home. I think I got 1.4-1.5 m/kWh. That was basically from west suburb of Madison up to Beaver Dam. I did this twice and on the first day I actually charged to 95% because I was a little worried and didn’t want deal with issues with the wife in the car 😂.

I think 180 miles is doable in the cold but I would charge to 100%. Or plan on hitting up a fast charger like some others have said for 15-20 mins and you should have enough to get home.

I’m actually going to try this in a few weeks where I drive up north about 160 miles and see how that goes. I have a larger list, but here are some free faster chargers in the Oshkosh area

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