I've used this with openemu on a Mac and although as far as I could tell it charged fully without pressing a button for about a minute, the device was shut down. I tried pressing the buttons but nothing happened and I had to reconnect the controller to continue the game. Anything related to the cutscene will be an issue if this continues. I don't know why this is and since I don't know why I can't increase my rating by more than 1 star. I would give it a shot if you're looking for a discreet new controller but know you might get what you pay for here