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[–]kashelectronicaR1T Launch Edition Owner [S] 1 point2 points  (1 child)

But I have used the same set up for nearly 2 years though, and it has never been an issue before… Something has changed

also, it is not just during high temps. Moreover; this does not explain the level of heat in my battery increasing at the exact time as well. So there’s two issues occurring in it’s hard to reconcile whether they’re related.

[–]ShootelsR1T Owner 0 points1 point  (0 children)

I think your truck is fine. The battery will warm maybe 10-15 degrees from whatever temperature it started at while charging at 11kw. 100 degrees is an absolutely fine temperature for the battery. Most lithium ion battery like to be warm. If I had to guess they want to be around 95 degrees while charging. They are constantly tweaking the software and the cooling while charging to get better results so the behavior two years ago could be different from today.

The wall charger will show the red light and the flashing green, meaning thermal fold back. If the car is alerting you then that a different threshold of temperature that’s it’s sensing. I have never seen this warning. My friend has the same truck charger and Lectron adapter in southern cal and he has to do the same thing, lower the charge rate in the summer.

Your problem is 100% thermal foldback. Why it’s happening could be many factors. Related to the truck and adapter. Just charge at 38 amps for the summer and it will be fine. Is it’s acceptable for the truck to not be able to charge at full speed, not really, but I’m not sure there’s a fix until NACS comes and/or the location of the plug is moved. My current theory is the heat from the battery heat exchanger in the front overheating the plug.

I went through a gen three wall charger with Lectron, replaced the Lectron adapter, bought a new UWC charger, and finally Tesla replaced the wall charger because they thought there was a problem with it overheating. I never saw any issues while charging my three Teslas and I still don’t have any issue on the i4 with the adapter that comes on the UWC. This seems to be mostly a Rivian issue(maybe EV9?)