I play my Xbox close to the system, and during game play my controller turns off while my batteries are fully charged.
Maybe while ur playing u keep moving the battery case on the controller it is rlly sensitive so bkerful when ur playing it is rlly sensitive
How old are your batteries? Even rechargable ones have a certain lifespan. Try unplugging your power plug from the back of the console, wait 20 seconds and plug it back in. If the batteries are new or at least not at the end of their life, then I would try re-syncing your controller with the console. Also, clear your system cache at system settingsstoragehighlight hard drive, press Y, follow directions. Restart console.