Re: Range & Time for a FULL charge
If you want thinner leads, you increase voltage, not add more leads. Or you will end with a bundle of thin leads on your hand, kinda self-defeating.
The thickness of leads is directly proportional to the current *alone*. Increasing voltage, you drop current.
power (stable) = current (-) x voltage (+)
Another issue is temperature: lots of current in thin cables generates heat. Ohmic resistance and all that.
Either we make the cable superconductor (not gonna happen), or we make them thick (we don't want that) or we can increase the voltage from 220V to something like 380V and beyond.
Power lines transporting *GIGAWATTS* are not much thicker than Tesla's cables, but power lines operate at 500,000 volts and beyond. 750,000 in not uncommon, and a few lines operate at one million volts. However, you must keep some 5 meters of distance from them before getting zapped.
Up to 440V is hand-operable without issue, and without gloves. At a mere 20 amps, a 440V charging port would be dumping 8800 W in a car.
Edit: Tesla operates at 480V on their supercharger. If they are rated at 150kW, that means 313 amps, on those THICK cables.
Biting the hand that feeds IT
