That’s it right there!
It means the battery was discharging and the charging system was not keeping up anymore
Usually the 65o’s it’s good to replace both stator and regulator = married combo
I don’t usually sell a reg by their own for 650s but will do it on a custom order , otherwise most just get the full thing here
ElectroSport stator (recommended)
True Shingden Reg (not the fakes online, there is millions) and yes , Hyosung’s have gone in smoke for using cheap taiwanese regulators.
I couldn’t risk it.
Upgrade Regulator Rectifier & Stator Generator – GV650 GT650 Hyosung {Carby & EFi up to 2013}
A bad reg can take down a stator that’s already stressed.
Alas, as such i would also advise changing the starter motor solenoid.
A healthy solenoid spins the crank faster.
Stater MOTOR itself would be the last thing to worry about.