I'm trying to come up with a formula for the most ideal speed to drive to minimize charging times. For example, if you were plugging into 110V and only gaining 3 miles/hour - it would make sense to slow down and save as much range as possible. Obviously if your next stop is a SC - then speed wouldn't be as big of a factor. I'm having a hard time figuring out the formula/math. Any of you geniuses know the formula for that? Thanks!