Hi, we have 2 of these bikes. Ver handy because we can fold them and get both in the large boot of our car. On the last day of our holiday I took one out of the boot and the lights on the handlebar controller do not light up. Its not the battery because that works in the other bike. Im wondering if when I last folded it a cable caught and pulled a connection loose, but before I take too much apart I thought I would ask to see if anyone has any ideas. Thanks John