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Extending Ubuntu's Battery Life E-mail
Written by Phoronix   
Friday, 29 February 2008

Extending Ubuntu's Battery Life

Last week when traveling to Europe for FOSDEM and other business meetings, I had picked up a new 9-cell battery for a Lenovo ThinkPad T60. While an additional three battery cells will noticeably extend your battery life, you can also extend your battery life by taking a few simple steps to optimize your Linux desktop that will also reduce your power consumption and heat output. In this article are a few simple steps to take in order to extend your notebook's battery life on Ubuntu.

One of the easiest ways to start optimizing your notebook's battery life is by using the utilities already available to you within Ubuntu. From using gnome-power-preferences, one can adjust their power settings not only when running on the battery but also when using AC power. Inside GNOME Power Management Preferences you can adjust how many minutes of inactivity before the computer and/or display is put to sleep, what to do when the laptop lid is closed (Nothing, Blank Screen, Suspend, Hibernate), what to do when the battery power is critically low, dimming the display brightness (on a percentage basis), and whether to dim the display when the system is idle. These same settings are available to battery and AC power environments. Dimming the notebook's LCD panel when running on battery power can significantly improve your battery life, but of course that it can also strain your eyes. When dimming the display on a Lenovo T60 by 30%, it was still bright enough not to cause any major eyestrain and had extended the battery life by several minutes. The backlight power can also be controlled using xbacklight. Phoronix


 

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