This idiotic device is engaged over 40mph at times when the driver's desire is to go forward.
What is then happening is the motor has to run a bit harder to not only push the car but turn the fan blades.
So you end up taking extra energy out of the battery running it through a couple of lossy conversions and putting a fraction of it back into the battery.
This is embarrassing, this is basic conservation of energy, physics 101. Please!
—This is embarrassing, this is basic conservation of energy, physics 101. Please!—
Precisely. I don’t come down hard so fast on these stories normally, but sometimes it is just necessary.