WHAT DOES M ELECTRIC SCOOTER S1 MEAN?

I dodged a number of injuries when my other hacked-up scooters had unexpected failures. My homebrewed speed controller would usually are unsuccessful, and when it did, it went entire throttle.I’d be tooling along slowly but surely to the footpath, only to have the scooter quickly fly out from under me. Once, I managed to capture it and power-lift