Ok new here... here's the deal, like an idiot, I bought a used PSP off of ebay, the seller stated that it just needed a new battery.. well, I bought new battery, new charger, and all that good stuff, problem is when i go to power it up it wont turn on unless the ac chord is plugged in... when it is in there isnt a problem at all but as soon as it is unplugged it shuts off.. I assume the battery isnt charging or holding a charge or something to that affect.. does anyone know what i should do or what the prob is?? says that it is running 2.6 software, and when the plug is in i can use it, and when i go to check the battery in systems it says 100 percent, battery light flashes 3 bars in top right corner (when plugged in only) but like i said, once unplugged shuts off and if try to turn it on with out plugged in it does NOTHING... Am i just screwed?? do i just need to sell for parts?? what do you all recommend PLEASE.... THANKS IN ADVANCE.