A great X2 that I have owned for 2 years. I acquired this Segway as payment from a customer unable to pay his business invoice. Never thought I would own one. It has been a blast and now it's time to move on. I do not know anything about this machine or Segway beyond get on it and go. It stays plugged in all the time and there has never been a problem with it. The mileage is less than 50 miles. If their is any doubt about how great this machine is I could have a video taken of me riding it in my shop. You will not be dis-appointed.