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Extension cord for supercharger help

geordi

Mr Fusion V.1
Jun 14, 2022
236
136
Earth
I'm going to suggest something blindingly obvious that you definitely already know, and then follow up with lots of guessing.

Thanks for that - yes, it was blindingly obvious but perhaps equally obvious is that if I'm asking the question it is because that scenario doesn't always apply.

As for the liquid cooled cables - No, hardly any of them are set up in that way, and the ones that are - aren't going to run that fast anyway because my car is older and limited to 120kw charging. Well within their capability for the dual 2-gauge wires (which is what Tesla uses for the 250kw chargers that aren't liquid cooled!) without any special magic.
 
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geordi

Mr Fusion V.1
Jun 14, 2022
236
136
Earth
I know very little about this subject matter so please take this with an appropriately sized grain of salt. I am not 100% sure this is true as the Tesla to J1772 adapter will work for destination/wall chargers but does not work at superchargers. There has to be something different being done with the supercharger that is not being accounted for in the standard/traditional Tesla to J1772 adapter.

Perhaps see if you can locate the pinouts for a Tesla NACS adapter (their new adapter which enables supercharging to non-Tesla vehicles).

It's OK, I can explain the difference as I tried already accounting for that. The J1772 adapter that allows use of a Tesla wall charger on non-Tesla vehicles only has 4 of the 5 pins connected. The "proximity" pin is the one left open in the tesla side of that adapter. I solved that by connecting it to the same proximity pin on the SC cable that I was building.

I have not heard about availability in the USA of supercharger use for non-Tesla vehicles, but that adapter likely has some form of registered ID chip in it so that the customer can be properly charged for the power use. For Tesla vehicles, the car handles all of that.
 
It's OK, I can explain the difference as I tried already accounting for that. The J1772 adapter that allows use of a Tesla wall charger on non-Tesla vehicles only has 4 of the 5 pins connected. The "proximity" pin is the one left open in the tesla side of that adapter. I solved that by connecting it to the same proximity pin on the SC cable that I was building.

I have not heard about availability in the USA of supercharger use for non-Tesla vehicles, but that adapter likely has some form of registered ID chip in it so that the customer can be properly charged for the power use. For Tesla vehicles, the car handles all of that.
Non Tesla vehicle charging wouldn’t need an ID chip. You just scan a QR code on the pedestal with the Tesla app, so it would know what account to charge that way.
 
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geordi

Mr Fusion V.1
Jun 14, 2022
236
136
Earth
Non Tesla vehicle charging wouldn’t need an ID chip. You just scan a QR code on the pedestal with the Tesla app, so it would know what account to charge that way.
At least in the USA, the Supercharger pedestals have no QR codes on them, and the app doesn't seem to be ready for that function. Maybe there is a different app for non-Tesla DC fast charging in Europe. Don't know.
 
At least in the USA, the Supercharger pedestals have no QR codes on them, and the app doesn't seem to be ready for that function. Maybe there is a different app for non-Tesla DC fast charging in Europe. Don't know.
I’m in the USA - and that is what the app says when you go to the “charge your non-Tesla” screen. The QR codes are on the side of the units I believe (I vaguely recall seeing them) however the app only lists some standard Tesla wall connectors as the available stations for non-Tesla charging in my area.
 

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