Battery Life and Power Consumption
Battery Testing Method
To test the capabilities of our laptop sample we run three battery benchmarks: Battery Eater Pro, Battery Mark 4.01, and Mobile Mark 2005. Battery Eater Pro is a benchmark that loads the system using graphics, memory, and hard drive activity. Battery Mark is an older benchmark that simulates a typical office productivity by running sessions of MS Word and Excel. Mobile Mark 2005 is a bit different and deserves a separate section below.
Testing is done with all forms of power savings disabled. This is done to give the most consistent and comparable results across multiple laptop platforms. The numbers you see in these tests are the “worst case” scenario, so expect longer battery when you properly enable power savings in Windows.
The G2 doesn’t have a long battery life as you’d expect from a 17″ notebook. Depending on your activity, you can expect about 1 to 1 and 3/4s of an hour without any power saving schemes enabled.
In MobileMark ’05, we see a similar story with battery life lasting between 1.5 to 1.75 hours. Getting MobileMark 05 Productivity test to run properly was problematic on the Asus G2 using the Factory installation of the OS. It would stall about 20 minutes into the test and hang. The only way I was able to get this working was by installing my own version of WinXP.
To help improve your battery life, Asus includes a handy utility called Power4Gear which is a set of predefined performance and LCD brightness profiles. For example, the CD Audio profile reduces the CPU’s performance to 25% turns the LCD panel brightness to 6% for maximum power efficiency. You can define your own settings and all of this is mapped to a handy one-touch key just above the keyboard.
ATI also has some power saving techniques in their driver called PowerPlay which allows you to throttle down video performance when running on batteries.
Thanks for the further
Thanks for the further information..
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