Sony apparently puts PSP Extended Life Battery Kit back on sale | Engadget
PSP Go battery life worse than PSP-3000 | TechCrunch
Amazon.com: OSTENT High Capacity Quality Real 1800mAh 3.6V Lithium Ion Polymer Li-ion Polymer Rechargeable Battery Pack Replacement for Sony PSP 1000 PSP-110 Console : Video Games
Replacement Battery for Sony PSP 1000 by Mars Devices - Walmart.com
Portable Emergency AA Battery Charger Extender suitable for the Sony PSP-3001 Playstation Portable Slim - with Gomadic Brand TipExchange Technology - Walmart.com
BATERIA COMPATIBLE PARA PSP 1000 1004 FAT GORDA 1800 mAh BATTERY 1001 1002 1003