Thank you so much for going to the trouble to give me some information and advice. I think that it is time to consider a new bike. By the time I convert to Lithium Ion and get a new charger, I will still have a 13 year old, 24v motor. I am sure the newer brushless motors will give me more power with less maintenance. I have a heart rhythm issue and my doctor wants me to get more exercise. I live in a hilly area and thought an ebike would keep me from overtaxing on long rides. Any advice on a brand/type? I don't want to spend a fortune but don't want to get something that won't last.