I am hoping someone could help me diagnose a problem with a used Schwinn s750 I just purchased off craigslist.
There seems to be an electrical issue with the scooter. Here's a little history. When I bought the scooter the seller told me that the scooter was fully charged and that he had charged it until the charger stopped blinking showing a solid green light on the charger. However, from what said it didn't seem like it was charged for the recommended 6-8 hours so I am not sure if this has anything to do with what I am experiencing.
The seller also mentioned that the batteries were changed in the previous year but I know they could still be the culprit. Lastly, he mentioned that the throttle was changed before.
1. When I am running at full throttle, the scooter shuts down after 1-2 mins. The battery indicator lights go from green, yellow to red. The scooter then stalls. I would need to switch the scooter into the OFF position then to the ON position. The battery indicator light goes back to green but soon to yellow and red after running it a bit more then stalling again.
2. When I am running at a slower speed the scooter seems to last longer but still after using the scooter, the battery indicator would change from green to yellow to red then stall.
What could the issue be? Does it sound like the batteries are shot? The batteries do not seem to have any bulging or leakage. Or maybe something else like a controller? Any ideas?