Battery Life Estimates are Bunk—Here’s Why
June 20, 2009 by Rico Mossesgeld
Filed under Laptops
Savvy laptop owners learned a long time ago that manufacture claims on laptop battery lives were essentially best-case scenarios. An XPS M1330 for instance never reaches the promised 3 hours—even with all connectivity off and the screen dimmed to minimum.
But why, you ask? Here’s Daniel Lyons’s theory
These battery-life numbers are based on a benchmark test called MobileMark 2007 (MM07). The test was created by a consortium called BAPCo (Business Application Performance Corp.), whose members are—you guessed it—computer makers and other tech companies.






