Without a working controller, a PlayStation 4 is just an expensive paperweight. And while wireless PS4 controllers are convenient and freeing, they also need to be charged occasionally.
Thankfully, charging a PS4 controller couldn't be much simpler if you have the proper USB cable.
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How to charge a PS4 controller
To charge a PlayStation 4 controller, simply connect it to the PS4 console using the USB cable provided with the system.
As long as the PS4 is switched on ( it can be in Rest Mode), the controller will commence charging.
A complete charge takes about two hours. You should be sure to let the battery run out, and then fully charge your PS4 controllers several times a year, to ensure their battery life doesn't shorten.
To check the current charge level on your controller, press and hold the controller's PS button, and the controller's charging progress will appear on your screen.