Well I don’t know the power consumption of this robot but did buy my kids a hover board for Christmas a few years back. The hover boards are 2 wheeled device you stand on and it moves you around as you pivot your foot at speeds of up to about 12km/hr. The battery is good for about 20-30km range which really surprised me. So for this robot maybe not as efficient as 2 wheels but I would guess it wouldn’t be hard to get a range of 10-20km quite easily with today’s current battery tech.