I don't know how the Tesla charger plug looks or any specs of it, but maybe on Tesla Charger, the pins used for the Super Chargers are physically different from the pins used for the L2 charger? And my speculation is that the adaptor to J1722 makes physical connections to only the L2 pins??? That's my non-Tesla owner's wild guess. BTW, are there any TeslaCharger to DCFast port adaptors such that the non-Tesla BEVs can use the Tesla supercharger at DCFast speed on the road?
Heck, I've had some store's J plugs not work on our Chrysler Pacifica plug-in. The designs are typically such that they fail by "not" working as opposed to sending power. Even our high power Tesla to CHADEMO adapter would occasionally have to be flashed/updated to continue working - as various DC QC units' programming for whatever reason would get updated. It's a chicken and egg scenario. Tesla offers to open up to other manufacturers if they want to pay - but the problem is, last time I checked not of them want to be a part of another company's program period. Since superchargers are designed to send data of a vehicle's Vin, even if you built a perfect adapter, it still wouldn't work because the handshake wouldn't recognize the VIN. You would have to be able to hack your adapter so that your units VIN & GPS don't line up with a location of another working Tesla. The criminal activity would hardly be worth the labor hours. .
Here's the USA Tesla plug. It's the same for 240V AC and for the high speed DC chargers. It's kind of a long, complicated story that came about because Tesla couldn't wait on the rest of the world for finally agree on a standard. They needed something right away. https://thedriven.io/2018/10/10/tesla/
Humm, So both L3 and L2 are using the same pins? Is the sensor mechanism that distinguishes high voltage DC vs 240v AC in the EVSE, or in the car?
That I don't know. @hill can probably tell us. Seems to me, though, that it would be in the car since the EVSE would just deliver whatever power it's connected to.
Common sense is the easiest way to determine. Safest is best. Thus both have parts in the decision of how much power to send or not at all The handshake is mutual. Your plugin has to say it can receive high power, & how much, & the appliance itself has to acknowledge that it has as much or little as the vehicle wants - then the 2 agree how much power to send/receive. .
Thanks for the info. So, the Tesla's L2 destination chargers do not check on the VIN? Otherwise, above mentioned adaptor for the Tesla L2 destination charger to a J1772 port of non-Tesla EV (PP included) would not work.
Correct The other fun fact with the high power Tesla wall charger (HPWC) IS that it can be derated to a measly 1.2kW all the way up to over 19 KW/ 80 amps. How to tick off a plug-in owner; Program your hotels' evse to painfully slow charging speeds. I've only found that to happen at a couple locations fortunately. It's likely they do that to discourage the freeloaders so Hotel guests will have access. .
To reduce the world's consumption in support of the EU vs Putin. Especially if you are in a place for hours anyway (overnight, tourist location, etc) No. At least without some hack to disable the VIN check that connects to your credit card on file. Mike
if yer X or S was built 5 or more years ago - you didn't even have to have a credit card on file. Refills were freeeeeeeee! Sure made interstate travel a whole lot more enjoyable. And yes - I got mocked a few times about the bumper sticker. .
