Suitable for Dualshock 4 Controller of the PS4 (V1) CUH-ZCT1E
If your controller is running out of charge quickly or not charging at all, it's time for a new battery.
There are two batteries for the PS4 controller. Actually, it's the same battery but with different connector.
CUH-ZCT1E has a 4.5mm wide connector
CUH-ZCT2E has a 3.0mm wide connector
The exact model designation can be found on the back of your controller. Unfortunately, this is not a reliable indication of the battery, as in some cases a different connector has been installed. To be sure, look in your controller and measure the width of the connector before buying.