I was traveling on business all day yesterday, and did a little experiment with my laptop as it relates to Windows 7 battery life.
On the long leg of my flight -- four-and-a-half hours from Las Vegas to Baltimore -- I put in a DVD, set my battery to "Power Saver" mode within Windows 7, and kicked off the movie.
The movie itself was two hours and 38 minutes, and ran continuously. At the end, there was anywhere between 10-20 minutes of battery life left. So on Power Saver mode, I had about three hours' battery life; not bad at all, considering that playing a DVD is a continuous drain on resources. There are no breaks for the CPU to take a breather.
There are no big pronouncements here, just an indication that Windows 7 manages power well.
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