Basically, I accidentally left the headset on and it completely ran out of charge. I plugged it in and the green light stayed on for a few minutes... then it just turned off. Thinking that it had charged, I held down the on/off button for 9 seconds but still nothing happens. When I try to plug it back into the PS3 to charge, the green light stays on for 5 seconds and then goes out. Is there any way to solve this?