If your controller isn't charging, there are a few things you can try: ~Make sure the controller is properly connected to the charging source. ~Try using a different charging cable or charging source. ~Check for any visible damage to the controller or charging equipment. ~Try resetting the controller by pressing the Reset button (located in the small hole on the back of the controller) with a paperclip. If none of these solutions work, it's possible that there is an issue with the controller itself. In this case, it may be best to contact Nintendo for assistance.