In order for humanoid robots to be used sensibly, they need “range,” similar to electric cars. How long can they work before they need to be recharged? And how quickly can a robot be ready for use again?

The following video shows how humanoids from four manufacturers are charged. All four robots can recharge themselves to a state of readiness without human intervention.

Robot manufacturers have come up with some creative approaches, as we can see in a compilation of various charging concepts. The approaches range from charging stations, simple magnetic plugs, and autonomous battery replacement to inductive charging through the soles of the feet.