I literally JUST bought this controller, brand new, packaged, everything. Before someone says anything snide, yes, it is a wireless controller.
I plugged it in earlier to see if it was working (and I had to assign it to my PS3 anyways). Well the controller charged and stopped blinking, so I thought "Okay the battery must be charged now." So I take the charger out of the controller and it just sort of... shuts down. I press the PS button to get it to connect but nothing happens, the lights don't flash. I plugged it back in to see if there was a problem with the PS button itself, but that appeared to be working.
Turns out someone's given me a rather dodgy recharging cable. The controller's battery was empty.
Started to think I had a real issue on my hands. :L