Instructions
Remove the back cover from the controller, and insert two AA batteries.
Insert the mini USB receiver into the PS3 and turn on the system.
If it doesn̵7;t connect, disconnect and then re-insert the mini USB receiver to the PS3.
Reset the receiver by pressing and holding the button located on the back of the mini USB.
If it is still not connecting, perform a system update to your PS3. You can find this under ̶0;Settings,̶1; ̶0;System Update.̶1;