Get your laptop's power efficiency report on windows 7

Have a laptop and want to get
more battery life out of it?
Windows 7 includes a hidden
built-in tool that will examine
your laptop's energy use and
make recommendations on how to improve it. To use it:
1. Run a command prompt as
an administrator. To do this,
type cmd in the search box, and
when the cmd icon appears,
right-click it and choose "Run as
administrator." 2. At the command line, type in
the following: powercfg -energy -output
\Folder\Energy_Report.html where \Folder represents the
folder where you want the
report to be placed. 3. For about a minute, Windows
7 will examine the behavior of
your laptop. It will then analyze
it and create a report in HTML
format in the folder you
specified. Double-click the file, and you'll get a report -- follow
its recommendations for ways to
improve power performance.