There are a few reasons why your PlayStation 4 controller might be blinking red. One reason could be that the controller is not working properly. If your controller has been used in the past and it is now blinking red, it may have been damaged or defective. Another reason could be that there is something wrong with the battery. If your controller is blinking red and you have tried to charge it, then you may not have enough power left to work the controllers properly.
