Things You'll Need
Instructions
Plug the small end of the Mini-B USB cable into the PSP.
Plug the large end of the Mini-B USB cable into the USB-to-AC adapter.
Plug the USB-to-AC adapter into a wall outlet. Power on your PSP and select System Settings from the Settings menu on the XMB dashboard. Highlight "USB Charge" and hit the X button. Select "On" and press X again. Navigate back to the Settings menu and select "USB Connection." Hit the X button to set the PSP into USB Mode.
Check your PSP's power indicator; if the light turns orange, the system is being charged. When the light goes out, the battery is fully charged.