Big battery mod done. Next up PSVita Joystick mod. : r/PSP
Playstation Portable (PSP) softmod - Dreamcast.nu
PSP Battery Mod Tutorial : r/PSP
CELLONIC® Replacement Battery PSP-S110 Compatible with Sony PSP Brite / PSP Slim & Lite Replacement Battery 1200 mAh Game Gamepad Joypad Battery: Amazon.de: PC & Video Games
PSP Big Battery Mod | Official Pyra and Pandora Site
Tutorial for 3000mah battery mod for PSP 2000 & 3000 | GBAtemp.net - The Independent Video Game Community
Amazon.com: MPF Products 1200mAh PSP-S110 PSPS110 Battery Replacement Compatible with Sony PSP Slim Portable Playstation PSP-2000 PSP-2001 PSP-2002 PSP-3000 PSP-3001 PSP-3002 PSP-3004 : Video Games
PSP Big Battery Mod | Official Pyra and Pandora Site