I got a new phone yesterday and a USB cable came with it (a universal one that fits most devices) and i thought i could charge my PSP with it so i plugged it in and everything went fine, the red light went on and it charged for like an hour. Later when i unplugged it the PSP didn't boot up, not even the light came on. It's just the battery right? I can't see how it would be damaged by charging it with another USB cable. EDIT: I dunno what happened but when i plugged it into the normal charger and started it there was no problem at all, it booted up perfectly. lol weird.