PS4 controllers have a bad habit of working the micro-USB connectors located on top loose, making it impossible (or at least difficult) to charge via micro-USB. This Sony endorsed charger uses the 3.5mm aux connector and the EXT port located on the bottom of the controllers to charge, and so avoids this issue entirely.
https://www.amazon.com/PowerA-DualShock-Charging-Station-PlayStation-4/dp/B00ENFVJJO