Question: I have a schwin s350 that will not hold a charge, what are my options?

Answer: The batteries or the charger may be the reason for this issue. To determine which of those two is at fault, you need to test them both with a volt meter. Once you find out what the problem is, you will need to replace the non-functional part. You can check out this Electric Scooter Parts Store for locating service shops in your area and also for the parts.