Battery charge not being read by 680C

Hello...first time on ES. I've just (with a little help from me friends- :wink: ) upgraded my TSDZ2 motor to the OSF Ver. 1.0.1. On the one and only ride thus far, the battery charge level came down to app 25%. I recharged the battery overnight and when I powered the motor/controller, the battery indicator was at the exactly the same amount of battery available as when I completed the ride. I connected a 2nd duplicate battery and still only had the app 25% charge remaining. I would be very appreciative for any guidance anyone is willing to offer. Best, JeffL