Some interesting info from charging yesterday. In the morning, the outside temp was 76F. I left the car for about an hour and it dropped in current to 32A. Later, i went to the same charger it was successful at, but left it and it dropped after maybe 30 minutes. I thought about what other variables were at play and when i charged at home last night. I left the cabin air on using "keep on" in the controls and charged from 14% to 90% maintaining 48A for the total charge time Temps in the garage were similar to temps from the outside in the morning
When I woke up in the middle of the night to see charge complete, i turned the climate off. My Emporia monitor shows that the cabin air was drawing roughly 6A after charging completed. I'm going to attempt my next charge at 42A with no air.
I wouldn't expect ambient air temperature to have an impact, but I can believe an issue with a component overheating due to that extra current is outpacing the ability to remove the heat.
This is only a sample size of one like the first location was. I am convinced it is my PCS module now, just interesting to see if it will be able to at least give me 42A on a consistent basis. I don't think I'll push it to 48A with nothing else to draw current again though. I certainly won't be spending $2K just to get an extra 16A from what I was getting before.
I guess this could be a caution to anyone thinking of getting a WC. Try a few sessions at public ones with no cabin air running before committing to the cost of the device plus materials and possibly labor.
By the way, I see you are in Michigan. I was just charging at a sushi restaurant near Horrock's Farm Market in Lansing. Have you been there? Awesome place. If it hadn't dropped to 32A on the way back to the car yesterday morning, I would've dropped the stuff off and returned to enjoy a beer at their beer garden.
The power flow is AC -> PCS -> DC -> Pack&CarSystems so running the climate control doesn't reduce the current going through the charger. It could increase the cooling to the charger though (and the interior temp of the car, which also helps to some degree) . If the issue was in the pack itself, diverting power might help, but then you'd have usdues supercharging.
WC is still a good option (similar total cost, integration with PW/ solar), even if vehicle has issues.
Haven't been to Horrock's, may need to check it out once Cybertruck shows up.