PSP battery mod kicks it old-school | Ars Technica
Amazon.com: OSTENT 2200mAh 3.6V Rechargeable Battery Pack Replacement Compatible for Sony PSP 1000 Console : Videojuegos
PlayStation Portable - Wikipedia
Batería Sony PSP Slim Lite PSP-2000 PSP-2004 PSP-3000 PSP-3004 700mAh
How to Fix a Psp Battery! : 4 Steps (with Pictures) - Instructables
File:Psp-battery-types.jpg - Wikimedia Commons
Purchasing New PSP Battery, Suggestions | GBAtemp.net - The Independent Video Game Community
Sony says PSP-3000 battery is the same as PSP-2000, so quit bitchin' | TechCrunch
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PSP Slim's Battery Life Shorter Than Originally Thought | WIRED
PSP-3001 with 4000mAh battery mod | GBAtemp.net - The Independent Video Game Community