Sony PSP Battery - Original PSP Battery for PSP 1000 Models
For PSP 2000 and 3000 Rechargable Battery Pack and Charger Kit Set for Sony PSP Slim 2000 3000 Console (Replacement Battery + Home Wall Travel AC Adapter Accessories Bundle) by Insten - Walmart.com
3600mAh Battery for PSP & PSP 3000 YGP300 pour PlayStation PSP
Sony PSP-2000, PSP-3000 Replacement PSP Battery (Slim) | Battery Mart
Amazon.com: Replacement Battery for Sony PSP 1000 by Mars Devices : Video Games
If you own a PSP, you might want to uh, make sure your battery isn't expanding – Destructoid
PSP 1000 Battery (Used) | M&M Video Games
Best Buy: Sony PSP Battery Pack PSP-110
For PSP 2000 and 3000 Replacement Battery Pack Rechargeable New 1200mAh 3.6V High Capacity for Sony PSP 3000 and PSP Slim 2000, Include Model PSP-2001, PSP-3000, PSP-3001, PSP-3002, PSP-3004 by Insten - Walmart.com
Amazon.com: OSTENT 1200mAh 3.6V Li-ion Polymer Lithium Ion Rechargeable Battery Pack Replacement for Sony PSP 2000/3000 PSP-S110 Console : Video Games