I tested it, looks like a garbage to many issue. 1) Each battery is not even enough for 2 km 2) According to the booklet that came with it: Is no good if rains snows step up or down hill , no good if the temperature drop under 32F, on up hill is too weak. 3) When drives this scooter lean a little on left side I guess because the motor in on 1 Wheel the other wheel is a little smaller and because of that when turn on right looks like want flip over . In overall for my opinion is dangerous so I have to return it.