Instructions
Turn off the PSP and make sure there is no battery in the battery slot.
Plug in the PSP power supply cord.
Turn on the PSP allowing it to gain access from the power cord even though no battery is currently installed.
Insert the Pandora Battery into the battery slot with the power still on. The battery will now charge. You can set the unit aside and allow it to charge, or play games as the battery charges using the power cord as your primary power supply. This could take longer for the battery to charge rather than just leaving the device alone.