[Blood of Tyrants]

And if you want to drive some electric pregnant roller skate that will go all of a hundred miles before it has to be recharged, it's none of my business.

If they would go 100 miles, it would be a HUGE technological breakthrough. Most will barely get 40 miles before a recharge is necessary.

[True Grit]

Most will barely get 40 miles before a recharge is necessary.

This will save little if any fuel as much of the electricity used for a recharge is produced by diesel powered generators.