If you haven’t noticed battery life on portable systems are getting way shorter, thanks more added features and batter graphics. The original reason portable systems were created was to play on the go, or on a trip. The battery on most systems have been increasing along with the graphics and features. Til now with the release of the 3ds and psp2. The 3ds gets a max battery life of 3 hours thanks to the 3d generator when the ds lite got 17 max, As for the psp2 the battery life is about 3 hours max thanks to high definition graphics, when the psp 3000 series got about 5 hours max.