Bad alternator. At 9-10V is clear that cars electonics are drawing from battery during each drive. Slid 14-14.2V required during proper alternator charging process. Could be just a bad regulator, but still requires an alternator pull. Best to put front clip in service position for the R&R erffort.

#1 - replace/rebuild alternator
#2 - have battery power cycled at shop to see if it has been compromised as a result
#3 - replace battery if test fails in #2.
#4 - keep enjoying your ride.