I was thinking about the same issue the other day, but in the context of passenger EVs and tall mountain passes. On the pikes peak descent for example there are

I was thinking about the same issue the other day, but in the context of passenger EVs and tall mountain passes. On the pikes peak descent for example there are many signs imploring drivers to shift down and use engine braking to avoid brake overheating and failure. It would probably be a bad idea to put a charger at the summit.