How to Replace a Battery for a PS3 Controller - YouTube
Amazon.com: Uwayor 2 Pack PS3 Battery for Sony Playstation 3 PS3 Dualshock 3 Controller CECHZC2E CECHZC2U, 1860mAh PS3 LIP1859 Replacement Battery with Tools : Video Games
Rumour: PS5 Controller's Battery Life 3 to 4 Hours Longer than DualShock 4 | Push Square
Replaced PS3 controller battery with old cell phone battery to avoid buying new controller. Should I be worried? It's not pretty, but it seems to work fine takes a charge again! :
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