Stop in for a cup of coffee

If the battery was low and its not show charging after starting, then the generator may not be putting anything out.
Leaning towards a bad starter. It is charging just fine. Confirmed with an Multimeter. After it runs for a while and gets to operating temps, if you shut it off, try to restart, nothing, starter just gives a single click. Wit 15-30 minutes, try again, fires right up