The whole Vista battery drain issue is still raging and I believe it may be due as much to the lack of information about how the power management in Vista as anything else. Having customized my power management settings I still find it harder to know exactly how some of these settings are affecting my battery life, unlike the settings in XP which were pretty much straightforward. Dwight Silverman of the Houston Chronicle’s TechBlog points to a guide,
that might help us understand these settings in terms of the settings in XP that we’re more familiar with. Check out this guide and tweak your power management settings and see if you can get that Vista battery life back up to where it was under XP, or better yet even longer.