eTeknix spotted that Microsoft's Windows 8.1 Preview is causing battery life problems on specific configurations.
According to some digging around done by Softpedia the Windows 8.1 Preview is causing battery life problems on specific configurations. One user posting on the Microsoft forum talked of how the Windows 8.1 preview ruined his battery life and caused his Dell XPS 10 to produce lots more heat than it normally would do.
“I upgraded my Dell XPS 10 from 8 to 8.1 RT and I am having similar issues. Battery drains quickly and the tablet heats up a lot. I called dell support who are going to reimage my PC. I like the update to it is un workable if in present condition”