Question: Schwinn Missle FS battery installation - is it a series or parallel hook-up. My batteries needed replacing and I got new batteries but I think I lost a part, unless I can use the little black wire from black to red - please help. If you could send me a picture that would be great

Answer: You will need to get the wiring diagram from the manufacturer of that scooter. The manufacturer website should have a download that covers this problem. If you need further assistance with your scooter, you can go here: Scooter Parts Shop. This store has a "find a repair shop" feature on their site, and you can locate repair shops by zip code.