How to remove battery from this DualShock 3? It's locked in. : r/PS3
Repair: Replacing a dead PS3 Dualshock 3 controller battery – Darian Cabot
Repair: Replacing a dead PS3 Dualshock 3 controller battery – Darian Cabot
How to Replace a Battery for a PS3 Controller - YouTube
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
DualShock 3 Analog Stick Covers Replacement - iFixit Repair Guide