Can you tell us if you are running your heater and what cabin temperature you set? I assume much of the loss of efficiency at lower air temp is due to cabin heat?
I took a round trip from home in Olympia, WA to Portland, OR, a total distance of 259 miles. It was warm day, about 85° and I ran the air conditioner for the entire round trip. I consumed 267 miles of range using conserve mode, so running the air conditioner used about 8 miles worth of power...
I’ll second that suggestion. I’ve sold 3 vehicles via Facebook and each was a great experience and was able to get good price each time. But there are lots of scammers lingering there so use precautions.
I have the Tesla portable charger and have been using it , connected to the Lectron adapter and a 20-foot Lectron extension cable. I have had no issues so far. Perhaps the lower amperage of the portable charger reduces the risk?