No, nothing getting hot that I can see. I think next step is to drive the car and get rid of some juice, and then see what the consumption is while charging.
My 16 PHEV is sat on the drive (UK, like many others) a lot. I got an electricity bill. I knew it would go up as my petrol bill went down - but ow, it's gone up by 40% and even before lockdown I was doing 60-80 miles a week max.
I put a portable electric usage meter on the charging plug (I'm...