I would not own another izip product if it was given to me. My husband had trouble with his IZIP Zuma from the get go. His battery would randomly not work. So we ended up paying a fair amount to have the contacts re-soldered. Then the charger went bad. Mind you the battery has less than 50 hours on it and the bike is 4 years old. I spent this past winter trying to get a new charger. Currie who is now Alta Cycling and makes all the chargers for IZIP sent me two chargers that didn’t work. I called again and Mikie J told me they didn’t have any more chargers and they don’t support that Zuma anymore. I said, “what do you mean you don’t support it?” He likened it to a cheap cell phone where after four years you can’t get a new battery and have to upgrade. In my mind, if I buy a $2500 bike made in the USA, I think I could expect that the parts would be supported longer than four years. This is a terrible company.