I just replaced my (totaled) 2015 Model S with a 2021 pre-refresh S, bought used directly from Tesla. The new-to-me car came with a cable in a rectangular case that goes from the Tesla to a US 120V outlet only. I have, from my old car, a Gen 1 UMC with a bunch of adapters.
At home I had a Gen 1 wall connector that worked fine with the 2015, but the newer car refused to charge from it. Tesla, as well as a local installer, told me that some of the old wall connectors (mine was vintage ~2012) won't work with new cars, so I replaced it with a new universal wall connector at home. However, I have a second home in the mountains that just has a NEMA 14-50 receptacle in the garage. With the old car, I used the gen 1 UMC to connect the car to the 14-50, and it worked just fine.
My question is, is my gen 1 UMC likely to work with the 2021 car (even though the gen 1 wall connector didn't), or do I need to buy something else, either a new UMC or some sort of wall connector for the second home?
At home I had a Gen 1 wall connector that worked fine with the 2015, but the newer car refused to charge from it. Tesla, as well as a local installer, told me that some of the old wall connectors (mine was vintage ~2012) won't work with new cars, so I replaced it with a new universal wall connector at home. However, I have a second home in the mountains that just has a NEMA 14-50 receptacle in the garage. With the old car, I used the gen 1 UMC to connect the car to the 14-50, and it worked just fine.
My question is, is my gen 1 UMC likely to work with the 2021 car (even though the gen 1 wall connector didn't), or do I need to buy something else, either a new UMC or some sort of wall connector for the second home?