If you are looking for a simple way to charge your controller, take a look at Nyko's PlayStation 4 Charge Pack. The pack installs directly to the back of your controller. Charges through it's micro USB cable or compatible charge base and as a capacity of 1000mAh.
1000 mAh battery significantly increases play time Rechargeable via any standard Micro-USB cable Easily attaches to the back of the DualShock 4 - no complex installation required Works in conjunction with the internal battery to provide the maximum amount of play time Designed to be lightweight and keep controllers ergonomics in tact. Compatible with Nyko's Charge Base for PS4