Wait the FCSP can't charge a Tesla even with the Tesla adapter on the J1772 FCSP plug?
Crap, I did not know that. Thank you for the clarification. Guess I need to do some more homework as we got a Model Y on order and I have the FCSP already wired into the house for the Lightning.It uses a CCS plug, not a J1772 plug. I haven't tested, but I believe the CCS to Tesla adapters utilize the DC contacts instead of the AC contacts. If you dig through threads here, I believe someone got a J1772 extension and removed a bit of plastic so it would plug into the CCS plug, sort of solving the issue.