IONITY chargers to be able to deliver 350 kW
In theory, the IONITY chargers with liquid cooled CCS cables should be able to provide enough power to utilize the full potential of the Model 3 charging capability. The ultimate level at IONITY is said to be 350 kW.
As demonstrated on the video, charging power was high at about 120 kW from 25% to about 45% State-of-Charge (SOC), before it started to decrease to 113 kW at 55% and 80 kW at 64%. In the first try, Bjørn mentioned it was able to crank 127 kW peak.
Results suggest that Model 3 is able to charge at a high 120 kW longer (to higher SOC) than at the Superchargers, which is curious.
Anyway, the Model 3 is not yet able to charge at higher power from CCS chargers it seems (the new maximum is 250 kW from V3 Superchargers and 145 kW from unleashed V2 Superchargers).
Tesla Model 3 (Source: Bjørn Nyland)