Instructions
Plug a 5-pin USB cable into the USB port at the top of the PSP console. Plug the other end of the cable into an open USB port on the computer.
Power on the PSP console and press the "Home" button to bring up the home menu.
Navigate to "System Settings" and select "USB charge." Change the setting to "Yes" to make the system charge when connected by USB cable.
Select the "Settings" menu and navigate to "USB Connection." Press "X" to start the USB connection, and the USB will begin charging.