This is a Multi-functional Charger for PSP 3000/1000/2000 and Here is a guide on How to use PSP 3000/1000/2000 Battery Outside Charger Stand :
1. Put the PSP embedded battery into the charger and the cover back. Make sure battery is connected with the chargers output.
2. Pull the plug out and connect it to outlet of AC 110V – AC 220V. LED is on, indicating charging is in progress, if battery is deficient of power.
3. After battery is fully charged, the Red LED will turn into Green. Indicating charging is complete. The battery can be removed and inserted into machine to use.
4. Remove the plug from outlet after charging.