So figured I would run this by the "experts". Last night I got home with about 60% SoC, plugged into my Nema 14-50 like always (Had my Model S 85D for about 3 years) and went to bed, the car is set to start charging at 11pm and usually finishes each night at about 4am or so. Now I live in Chicago and this week has been RIDICULOUSLY cold but my car is in a garage thats slightly heated. So that night outside was -11F but the garage was 32. I woke up to see that the car was only at 70%. "That's odd", through the morning it got up to 74% over the course of the 30 minutes I usually leave it to pe-heat so seemed that perhaps the cold had simply slowed my charge time. Concerning but not the end of the world. Last night I returned home with 41% SoC. The car had sat in -18F all day but pre-heated and drove like a champ. I plugged in at 7pm and noticed the "Snowflake" on the battery logo. No surprise there. Plugged in and decided to manually start charging. I saw 240v and 1/40amp. "Likely the thermal management system warming the batteries first". Out of curiosity I turned on the climate control and saw it jump to 240v, 22/40amps. "So the connector is working and power is flowing. Good". I turn off climate and let the car do it's thing for the night. A few minutes ago I woke up (5:30am) and noticed that I was still drawing 240v 1/40a, and the battery was at exactly 41% SoC still. Car temp is showing 24F, and have now performed a vehicle reboot (Safety -> Power Off, wait 2 minutes, power back on). As well as rebooted the charger. If I turn climate on I am still seeing 240v 18/40a so power is able to get to the car. If I take my best guess I have a thermal management problem, the battery was unable to warm back up to the 32F (0C) that is required to start charging, but over the night I would have expected it to be able to achieve this. Plus I drove it home for about 30 minutes (which while it gave me all sorts of low power warnings, still should have warmed the batteries a little). Today is supposed to be -28F so if the cars management can't handle the -18F I have no idea what i am going to do with -28F. Before I take an Uber to work and schedule an appointment, am I missing anything? Anyone have other ideas?