Gremlin wrote
Commander Kinsey wrote

https://youtu.be/J9b0J29OzAU

That's cool. Thanks for the share. I'd be interested to know if you
can explain how you think it works, without cheating, that is.

Pretty simple really. The magnetic things on the ends of the
battery allows a circuit thru the metallic coil which allows a
current to flow thru the metallic coil which provides the force
to move the battery with its magnetic caps thru the coil.