Things You'll Need
Instructions
Turn off your Sixaxis controller (if the unit is currently on and connected to your PlayStation 3). Press the "PS" button on your Sixaxis controller. Select "Turn off Controller" from the list of options on your TV screen. The indicator lights on the controller will turn off.
Turn over your Sixaxis controller so you can see the back.
Use the Phillips screwdriver to remove the five individual screws holding the Sixaxis controller together. Two are located on each arm of the controller and one is located in the center of the rear panel, near the identification label. Set these screws aside.
Grip the top of your Sixaxis controller with the thumb and forefinger of one hand. Grip the bottom of your Sixaxis controller with the thumb and forefinger of the other hand. Gently pull your hands apart, separating the two controller pieces from one another. Pay attention to the controller buttons on the top of the device -- pulling too hard could catch one of the buttons and break it. With the controller pieces separated, you can see all components on the inside of the controller, including the battery and circuit board.