stromer cable

Hello all, This afternoon as I was leaving working, I moved my st5 a few feet as I always do from its parking place and was surprised to feel it moving by itself. As if the walk assist mode was being activated. I had not activated it (never use it). The forward momentum was more powerful than...

Has anyone else seen issues like this where you ride it, park it for a few hours, then come back to find what should be a 50%-75% battery to be totally dead where it displays "no battery" on the control screen? Some details around what I've tried: 1. A brief "jumpstart" using the charger brings...