No one I know has a PSP. It doesn't always charge when plugged in. Because without the power in it, I'll hit the power button, it'll start to turn on, but within a few seconds it turns off. If I plug the power cord into it, it turns on no problem. This is why I think it's the battery. When it's on the picture of the battery on the top right is full and flashing, if I unplug the cord now it will stay on. But if I try to turn it on without the cord, it will sometimes work, and sometimes not. I think it might have something to do with the mother board on the battery. It was a regular battery, that I had made a Pandora out of then switched back. I think it's just the battery, I just had it on without the power cord, it was on for a little bit then just shut off...