Thanks, I did find that one, and they have 40, 50, and 80 amp adapters in the direction we need to go: from a Tesla plug to a J1772. Given what I see, because I ordered the 150kW - 400V onboard charger, I’d most likely get the one with the 80A capacity, but I have a question:
Does anybody know what they do to increase the capacity other than larger gauge wire? That is required, but anything else? Perhaps a fuse? It seems there should be a reason for the price to go from $140 to $240 other than 2 feet of wire. The plastic bodies of the connectors look the same in the pictures, and I would have thought that those parts were the expensive ones.
I cannot say for certain what exactly is different between the 40, 50, and 80 amp adapters; however, I believe I can help you to determine which one is correct given your circumstance.
Firstly, the 150KW/400V DC converter is not relevant in the tesla tap discussion. What this does is allow you to charge at 150 kw/hr at a DC fast charger that can only push out 400 volts. The Taycan uses 800 volt architecture so if it runs into a 400 volt DC fast charger it will need to convert the voltage to 800 volts in order to charge the battery. Since the Tesla Tap cannot be used at a Tesla Supercharger, it is not relevant for this discussion.
What is relevant is whether or not your car has the 9.6kw or 19.2kw AC charger. If your car has the 9.6kw AC charger, then theoretically all you need is a 40 amp Tesla Tap. For level 2 charging 40 amp ~ 9.6kw. I say theoretically though, because it is possible the Taycan has an 11kw charger advertised to be a 9.6kw charger (European models say that they have an 11kw (22kw optional) onboard chargers). If this is the case, they you may need the 50 amp adapter for your car. The typical Tesla wall charger installed at someone’s home will output 48 amps (mine does), this is equivalent to 11kw. If the car will actually accepts 11kw, and you use a 40 amp rated Tesla tap, it is possible that you send too much current through the Tesla tap and end up damaging something.
Unfortunately, I cannot test this, since my Taycan has the 19.2kw AC charger. If anyone on the forums has access to a car with the 9.6 kw charger and a 48 amp+ J1772 charger (or a Tesla Wall charger, and a Tesla Tap (or another brand)), they can test this by plugging in the car and checking the lower screen for the charging speed to see how much kw/hr it displays. To get it to display charging speed in kw/hr, just tap the charging speed displayed in miles/min and it will swap to kw/hr (though it will only display it as kw).
If you do not have a Tesla wall charger at home (or intend to use a home installed Tesla wall charger), it is probably safe to buy the 40 amp Tesla Tap, as most Tesla Destination Chargers I have run into output less than 40 amps. Though, I would check the car when you plug it in to make sure that you do not exceed a charging speed of 9.6 kw/hr.
You do not need to worry about an 80 amp Tesla Tap if you have the 9.6 kw AC charger, as the car will never ask for more than 40 (or possibly 48 amps if it is actually the 11kw charger) anyways.
The 80 amp Tesla tap is only consideration if you have a 19.2 kw AC charger, as 80 amps ~ 19.2kw. 80 Amps is also the highest possible output of a level 2 Tesla charger, though the likelihood that you will ever run into one is very slim. Therefore it a 50 amp Tesla Tap is probably sufficient if you have a Tesla Charger installed at home, just make sure your charging speed does not exceed 11kw.
tldr: Owners with the 9.6 kw AC charger only need to worry about the 40 amp (or possibly 50 amp) Tesla Tap. Owners with the 19.2 kw AC charger will want a 50 amp if they charge at home (or possibly and 80 amp if you want to play it super safe for the extremely rare occasion you run into a Tesla charger that can push that much.)