I just picked - up my TCH this weekend and I am still wondering how it may perform in the mountains. After reading some of the feed back in this tread I really don't think this will be a problem.

One thing in our advantage is that the electric motor is not effected by the increase in alitude that the ICE (non-tubo) and will put out its full power until the batteries drop down. When you get to the top it should charge all the way down. ....... Rich