probably, but keep in mind if alternator was bad, no charging is done.. your headlight is always on. did you go out for a long ride?. i really think your terminal is lose.. since it's a new install, and you hit a pot hose, it could come lose.. tighten it and let us know if that worked
hook up a digital volt meter on the batter posts and set to DC voltage, should read 12.3 or higher says the service manual. then start the bike and watch the voltage, if the alternator is charging the battery you should be able to see the voltage increase on the DVM.