Cable thickness is very much a problem with fast chargers. Many fast chargers now have water cooled cables, because when 500 amps is going down the cable, you

Cable thickness is very much a problem with fast chargers. Many fast chargers now have water cooled cables, because when 500 amps is going down the cable, you either need it super thick with copper or to have the complexity of two water cooling loops (one for the positive conductor, one for the negative conductor, electrically isolated coolant loops).