I have a 24 Volt model EBIKE made by Lee EV Global. It does not run. Seems controller is shot? No lights,horn,battery gadge.... Can I make it 36 Volts ? or 48,72 ? etc ? Since I seem to need to replace everything except 400 watt Hiensman hub engine what can I do ? where can I get a parts kit ? I see some generic controlers on EBAY which one ?...anyone do this > Engine works and battery is good just want to get running. Bike is in good shape except electronics.