Segway ninebot es4 motor vibrates when running, top speed of 5 KM/h.

Segway ninebot es4 motor vibrates when running, top speed of 5 KM/h.

As titled, my ninebot is having some issues, they started last fall, and I’m now getting around to finding a fix since it’s finally warm enough to ride comfortably again. So it happened while I was going up a hill, nothing extreme, maybe 30% incline.