Vista, while touted as having improved power management capabilities that would make it easier for users to extend battery life, isn’t to some living up to that promise. The main culprit appears to be the Aero Glass interface, a spiffy new user interface that makes Vista more pleasing to the eye with transparent windows and animated transitions when moving from one application to another.

When Aero is turned off, battery life is equal to or better than Windows XP systems. But with it turned on, battery life suffers compared with Windows XP.

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