Windows 7 to Extend Laptop Battery Life by Minimum of 11%

From Gizmodo -

Microsoft has tested Windows 7 on a multitude of machines and found that Windows 7 users coming from Vista would gain a healthy 11% minimum of battery life. In one test, they had a laptop play back DVDs to battery failure. All things equal, the Vista configuration pulled 17.9W of power, Windows 7, just 13.4W. Per jkOnTheRun, this means if the battery had 52 Watt/hours of power, the Vista system would run 3.05 hours, Windows, 4 hours.