Windows Vista - http://www.vistaarticles.com
How to Increase Laptop Battery Life
http://www.vistaarticles.com/articles/444/1/How-to-Increase-Laptop-Battery-Life
By 
Published on 09/8/2007
 
How to Increase Laptop Battery Life.

How to Increase Laptop Battery Life

Right Click on Desktop > Personalize
Screen Saver
Under Power Management click Change Power Settings...
Select Power Saver

This will help increase battery life by 10-20 minutes.