Things You'll Need
Instructions
Remove the battery from your PSP if you have not yet done so. Place the PSP aside.
Use a blow-dryer to dry the surface of the battery and push the water out of the thin crevasses along the edge of the battery.
Pour 4 cups of dry, uncooked rice into a medium-size bowl. Place the PSP battery into the bowl of rice, completely submerged. Allow the rice to absorb the remaining liquid in the battery for 24 hours.
Remove the PSP battery from the rice and use a dry cloth to gently brush off any residue. Place the PSP battery back into the PSP and turn it on. It is now completely fixed.