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! :
Intec PS3 Remote-Keyboard - G7720 - Complete with Charging Base - PlayStation 3 | eBay
PS3 Controller Wireless Gamepad for PlayStation 3 Bluetooth Game Controller Remote Control Support PS3 with USB Cable (Black) - Newegg.com
PS3 Controller not working, player 1 lights up and flashes : r/PS3