Yet they've replaced the NEMA 10-30 adapter with a NEMA 6-15. Which is grounded, and that's good, but causes the car to implement a 12A charge limit, which in my experience seems to be good for about 8 or 9 mph--in a 12 hour charge session, that's good for about 100 miles. Better than nothing but far from the 24A of the 10-30 or 14-30...or the adapter that matches what the car expects to see, the 6-30.
I may be anomalous, but about half my charging is done through one of two 10-30s. I use 10-30 a lot more often than I use 5-15 and I only use the 14-50 on fairly rare occasions. (the ways I've charged, from most frequent to least, in the 16,000 miles I've driven: 10-30, 80 amp HPWC, supercharger, J1772, 5-15, 14-50, 6-50)
I see the risk of not having a ground, but if that's the case, they should bring back the 14-30 so those of us who have 24 amps can use it. I've realized that abiding by the current limits implied by the NEMA plugs is a safer and more convenient way to go than explicitly dialing down the amps in the car. (e.g., my dad's 10-30r is on a 54 year old Zinsco panel. It seems to be working perfectly but you never know)
(my adapter collection consists of three groups:
a 6-50->14-50, a 10-50->14-50 and a 14-50 extension cord which is gigantic and never carry, and the tesla 14-50 adapter.
a 6-30->L6-30, a 10-30->L6-30, a TT-30 to L6->30, an L6-30 extension cord (very useful, less than half the size of the 14-50), and an L6-30->10-30, which is never far from the tesla 10-30 adapter.
I also have a 14-50->L6-30 from which I've removed the neutral pin. this lets me dial down the amps at the plug (one of the 6-50s I used was on a 30 amp breaker) or plug into a 14-30
a 6-15->5-15, a 6-20->5-20 and a 50 foot 5-20->5-15 extension cord built to 240V standards (the twice I've needed this it was great!). the 5-20 and 5-15 tesla adapters.
I also have an L6-30->5-20 adapter for dialing down, although I've never needed it.
if you study what I've done, you'll see that there's no way to go from a smaller plug to a bigger draw, only from a bigger plug to a matching or smaller. all my missmatched adapters are carefully labeled (comments like "EV charge only" and "no neutral"). I'm trying to figure out how to label the whole thing to indicate that it's part of a set. I think the use of the 14-50 as the "generic" adapter is a really dangerous idea, not to mention that it forces people to carry the absurdly large 14-50 extension cord if they think they're going to need anything bigger than 5-20. they're trying to discourage extension cords. I get why, but this isn't the world we live in and I doubt it'll ever be)
-- Snortybartfast