Starting Issue

It does sound like the battery isn't charging. Start the bike, rev it to 4k rpm and check the battery voltage. Should be about 14 volts.

 

Alternators can fail on these, seen it before. As said, check your charging voltage, last one l dealt with was barely giving 11V, so the electronic ignition and lights kill the bike in less than an hour.

 

Check the basics too. Battery lead tightness and earth to frame connection.