Mrbrock
Well-Known Member
Yes, that is why there are new V4 posts and they don’t just swap parts in the cabinets to enable 1000V for V3 posts. So like I said above, the thicker cable behind the NACS is more than likely due to higher ampacity (thicker wire) and not thicker insulation. Liquid cooling only allows for so much reduction in wire size as we saw with V2 to V3. Enabling up 1Mw charging is going to require thicker wiring.The liquid cooled portion is just from the post to the vehicle. And they eliminated the insulation between the coolant and the cable for V4. (immersion cooled cables.)
But to support the eventual 1000v, I believe that they have to use different cable between the charge cabinets and the posts. So a V3 to 1000v V4 wouldn't be a simple upgrade.
At a minimum the NACS connector would have to be the 1000v version, which is easy to see.