I have a PSP 1001. The original battery that came with it died about a year ago. Recently I replaced it with a third party one. The original battery didn't last for very long, and the new one lasts about an hour and half if I keep the default CPU speed and LED screen to the lowest setting. That makes my PSP not very portable. But I'm curious if that's the normal battery life since I've been using custom firmware since nearly day one of the PSP homebrew scene. What's your experience?