You'd think that by removing the battery-draining UMD drive, the new PSP Go would have an improved battery life over its predecessors. That doesn't appear to be the case, as the European PlayStation.Blog
notes "the battery life is equivalent with the current models." According to the site, that means "approximately 3 to 6 hours for gameplay and approximately 3 to 5 hours for playing back videos."
The smaller system obviously contains a smaller battery, but we're still surprised Sony hasn't managed to engineer better battery tech for the upcoming handheld. Seems like those that want the most juice out of a PSP will want to stick with the 2000 series, equipped with the extended life battery