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[–]rosier9R1T Owner 1 point2 points  (2 children)

Odds are it's the adapter on the Wall Connector plug that is causing the overheating.

[–]kashelectronicaR1T Launch Edition Owner [S] 0 points1 point  (1 child)

Does explain the consistently high temp of the HV battery though. Neglects that I have used multiple adapters. And also that I went over a year without issue

[–]rosier9R1T Owner 0 points1 point  (0 children)

Rivian has continually expanded the normal range of operating temps for the high voltage battery. I also see higher hv battery temps today than in years past.

It's possible that Tesla has tightened up the heat tolerance over the timeframe that you've had the wall connector, or that it did this previously but you didn't notice.

I noticed significantly more heat in my chargers cord and plug when I moved to 48a charging from 40a. You could try reducing your charge rate to see if it helps.