My ps3 controller is crazy! Idk why but everytime I turn off my system at night my controller wont turn on. So I have to take apart and unplug battery and plug back in and it works.

SOURCE: it wont charge or even turn on

try taking the battery out i had same problem and that worked on mine hope this helps

SOURCE: My Dual Shock 3 controller won't connect with the system

go into you accesory settings and change the controllers designation,change it to number 1, it will get changed from time to time cuz of drums or guitars being designated as no 1(especially mic's).

SOURCE: ps3 controller not working at

The battery is dead and will no longer charge, or could be a circuit board issue

SOURCE: PS3 Controller will not turn on, even when plugged in. It flashes but will not turn on. help please

idk. i have the same problem!