I was playing final fantasy dissidia for about 3 hours and the power just died. The battery was 59% charged when i turned it back on.It has worked perfectly ever since. The AC Power cord was not plugged in when it died. I bought the PSP 2 days ago.Was it just a glitch? it only happened once. Has ur psp ever turned off on its own and worked perfectly when u turned it back on.Should i be worried?