Predict speed of Tesla charging on CCS 350kW charger (with adapter)

[OPRCE]

Unless tesla moves to superconductors as the charging cable the anything higher than 150Kw will require super thick cable at 400V.

The V3 SuC cable will be liquid-cooled, so the bottleneck shifts to the car's uncooled internal wiring, where P = I^2*R gives the heat loss.

The MS/X cables are of copper, whereas M3's are of aluminium, a material with 58% higher resistivity, thus need to be thicker to handle the same load.

It is unclear what max current the MS/X cables can handle, but if same as M3 then the battery/cooling comes into question. M3 has several parallel coolant flows whereas MS/X has a single ribbon contacting all cells.

My guess is the 100D pack should manage ~185kW.

 

[miimura]

The V3 SuC cable will be liquid-cooled, so the bottleneck shifts to the car's uncooled internal wiring, where P = I^2*R gives the heat loss.

The MS/X cables are of copper, whereas M3's are of aluminium, a material with 58% higher resistivity, thus need to be thicker to handle the same load.

It is unclear what max current the MS/X cables can handle, but if same as M3 then the battery/cooling comes into question. M3 has several parallel coolant flows whereas MS/X has a single ribbon contacting all cells.

My guess is the 100D pack should manage ~185kW.

It is well known that the cables in the Model S (likely X too) from the charge port to the junction box area are much smaller than the Model 3. This is probably the main reason that the Model 3 will have a higher peak charging rate than the older platform. Fall 2019 is a rumored timeframe for S & X refresh.

 

[Feathermerchan]

I can't verify but I read that the Model 3 interior charge cable is Aluminum. If so, it would have to be larger to carry the same amperage as a copper cable.