Function
The Playstation 3 features a wireless controller with an internal battery pack. It is charged by plugging the controller into a USB port on the PS3 using the included connector cable.
Charging
The Playstation 3 controller will only charge while the system is on. It can be used while plugged in and still continue charging.
Misconceptions
When the Playstation 3 is powered off, any connected peripherals such as a controller will not be charged. If you wish to charge the controller, the PS3 must remain powered on.
Fun Facts
If you plug your Playstation 3 controller into the USB port of a computer, it will fully charge as long as your computer is on, even if it is in sleep mode.
Solution
Additional charging stations can be purchased that will recharge multiple controllers at one time. These stations are plugged into a standard wall outlet.