I have a 2007 Ultra. While riding the other day my engine light & battery light came on. I looked over at my volt gauge and it has dropped to 10 volts and not charging. About two miles later lights go off, bike is charging. I check the battery terminals and battery fuse, everything fine. Then a few days later it does the exact same thing again. By the time I get home everything working fine.
Any ideas or help.
Thanks guys,
Inky

 

Check for loose connections in the battery/charging circuit. If everything looks good, you most likely have an intermittent problem with the voltage regulator.