impulsegamer.com - Replacing the battery in a PS3 DualShock Controller - impulsegamer.com
Battery for SONY PS3 Controller Battery 3.7V - 1800mAh – Arcade Shock
PS3 Wireless Controller Rechargeable Battery
Amazon.com: Pickle Power PS3 Controller Battery Replacement, 2 Pack LIP1359 Battery for Sony Playstation 3 PS3 Dualshock 3 CECHZC2E CECHZC2U Controller with USB Cable+Tools : Video Games