Read the self-troubleshoots and try to perform it in proper way
Reset the controller- by resetting many times the issue resolves because issue might be caused by malfunctioning. First ensure user have disconnected the controller then locate the reset button, usually it is small button located at the back. Then take a pin to press the button. After some time it will restart.
Perform power cycling- first step is to switch off the controller and console entirely. Unplug the main power supply via socket. After 5-10 minutes hols the button for some seconds in order to drain the energy that is left. Final step is to reconnect the cable and switch on the console and check if the issue is resolved or not.
Check the cable-if a person needs to check the cable, it should be connected it to another PS4 controller. In case the particular controller is charging properly, user can skip the subsequent steps. If not, it specifies that there is some issue on the USB cable.
Check the charging port- plus if there is a USB cable, which has faulty charging port on the controller is accountable for the issue. In that case person needs to look charging ports. User need to use the same charging USB cable on different controller. In case the controller will charge smoothly, that specifies there is something issue with the charging port if the controller.
Following were the troubleshoot to perform if the PS4 controller not charging no light, still if there is any hassle or issue then contact customer care service and talk to the representative regarding the same. they will help you throughout and get your solved in simple hassle free way.
Related Link: How To Setup PS4 vr Controller?