Has anyone published real world examples (rather than theoretical calculations) of the tradeoff between shorter driving times going fast vs. longer recharging times at Superchargers?
My overall charging speed on two round trips between Barstow CA and Nephi UT (i.e. Barstow, Las Vegas, St. George, Beaver and Nephi Superchargers) averages about 175 Rated Miles per hour. Of course, charging speed depends upon starting Rated Miles and how full I want the battery to end up at. I typically roll into a Supercharger with 30 to 80 Rated Miles and charge enough to have 40 Rated Miles above what EV Trip Planner says is required for the next leg. I have an "A" battery which limits my supercharging speed to some extent. Also I can't control whether I will have to share my SC circuit with another car, though I rarely have to except for Barstow. It is impossible to control for wind and temperature changes in making comparisons in just two round trips of 700 miles.
Given all these limitations on the quality of my testing, my experience is that Rated Miles used increased so much going 85 mph vs. 65 mph that over 90% of the time savings on the highway were given up to increased charging times at the Supercharger. Net net I gained very little time by going so fast. As I result of my testing I plan to drive no more than 70 mph, not only is it generally safer (as long as you are not holding up traffic) but the perceived time is shorter because you are stopped at the SC for less time.
If anyone else has done this comparison, please let me know.
My overall charging speed on two round trips between Barstow CA and Nephi UT (i.e. Barstow, Las Vegas, St. George, Beaver and Nephi Superchargers) averages about 175 Rated Miles per hour. Of course, charging speed depends upon starting Rated Miles and how full I want the battery to end up at. I typically roll into a Supercharger with 30 to 80 Rated Miles and charge enough to have 40 Rated Miles above what EV Trip Planner says is required for the next leg. I have an "A" battery which limits my supercharging speed to some extent. Also I can't control whether I will have to share my SC circuit with another car, though I rarely have to except for Barstow. It is impossible to control for wind and temperature changes in making comparisons in just two round trips of 700 miles.
Given all these limitations on the quality of my testing, my experience is that Rated Miles used increased so much going 85 mph vs. 65 mph that over 90% of the time savings on the highway were given up to increased charging times at the Supercharger. Net net I gained very little time by going so fast. As I result of my testing I plan to drive no more than 70 mph, not only is it generally safer (as long as you are not holding up traffic) but the perceived time is shorter because you are stopped at the SC for less time.
If anyone else has done this comparison, please let me know.