That is the rating plate for the V4 Supercharger post. That post is hooked to V3 Supercharger cabinets, and the rating plate on it says that it is still limited to ~450v and ~250kW.
It's definitely a data plate from the stall and not the cabinet. The cabinets are all V3 and the data plates on them look completely different.
Admittedly V3 cabs do share a common DC bus, so that they can share power between the cabinets. But yeah they are still limited in both overall kW output and they are still 500V units.
Probably best to think of this as "Tesla redesigned the stalls to allow better support for third party charging, while they were at it, they decided they might as well rate them to 800v so they have options for the future".
Yeah we won’t see any “v4” SuC cabinets capable of 400-1000v outputs until Tesla release a vehicle that requires this architecture.
" SuC cabinets capable of 400-1000v outputs" can come a long time before over 400v is enabled in the Supercharger software.
Sure. But it’s nothing special. There’s loads of 400-1000V capable chargers in the wild today. Just not wearing a Tesla badge
What’s the size / gauge of the conductors?
What’s the size / gauge of the conductors?
PhoenixContact supply a lot of the HPC manufacturers like Alpitronic (Fastned 300 kW units amongst others).
Some of their top rated CCS2 cable will “boost” up to 500A and up to 500 kW, but otherwise the max rate is 375kW currently…
Quite staggering amounts of power handled by mom and pop
Gun is liquid cooled so without the cooling specs, there is no idea how much power they can run through the supercharger cables. With V3, the wires from the cabinet to the post were only designed to handle 250kw so it wouldn’t matter how much the cabinet could provide to the post if the cables were insufficient to handle that. Now they are increasing them to at least get to 350kw like some of the CCS DCFC. Switching to 800V will enable double the KW.
Not yet but to enable MW charging, it is the most likely way. Maybe the Semi is 800V, but it is not public information yet.
Yep. Longer term >800V is the only way to get high power into these packs, otherwise cables become unwieldy and expensive. It's exactly the same as the grid. the higher voltage you go the smaller cross-section of cable that you need.
They will just use converters in the cabinets. They can send 400v at a max amperage when requested or 800v at whatever that max amperage is.
All 800V-capable chargers do this already. In fact all DC chargers are variable voltage, and the car tells the charger what voltage it wants - which isn't a fixed 400V or 800V but depends on the type of battery, state of charge, etc.
My point, though, is that like all manufacturers, they kind of are tied in to the 400V industry legacy (as far as the cars are concerned). Unless they really don't mind giving up the ability to charge from legacy DC rapid chargers - and I mean not being able to use them at all - then 800V complicates the car and adds expense.
