440 volts is not four 110 volts in parallel. You’re confusing current with voltage.
Let’s put my concern this way:
Would you rather be dropped on your head onto concrete from 110 inches, or from 440 inches?
For safety, let’s add a mattress in the landing zone. The 110 inches now looks survivable. That 440 inches looking any better?
Now, in this context your suggestion is like being dropped 110 inches four times.
So then what I’m proposing is entirely possible, since there are already 480V charging devices which Tesla has already conformed its engine to. All that needs happening is the concept of a charging station.