Instructions
Turn the controller over so the battery cover is facing you. Place your thumbs on the cover and press down to remove. Put two AA batteries in the controller. Make sure the top battery's negative side is facing the left, and the bottom battery's negative charge is facing the right.
Replace the cover. Connect the USB receiver into an available USB slot on your PS3.
Turn on the PlayStation 3. Turn on your controller by pressing the "PS" button. The indicator light on the controller should turn green and then turn off. It should turn green again when you press a button. If it does not, press the "Detect" button on the USB receiver.