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Why is battery backup while using Fedora 16 very poor?

asked 2012-02-01 20:49:33 -0500

Pankaj gravatar image

updated 2012-02-01 22:42:00 -0500

FranciscoD_ gravatar image

I have switched from windows 7 to fedora 16 recently on my hp pavilion dv6 6119 tx laptop and my battery backup has decreased from 4 hour 30 minutes to 1 hour 30 minutes. Please suggest me some solutions to this problem.

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Please post queries as questions in the future @Pankaj. Also refrain from using bold, punctuations etc. unnecessarily. I've updated your question.

FranciscoD_ gravatar imageFranciscoD_ ( 2012-02-01 22:42:57 -0500 )edit

Are we talking about a UPS (battery backup) or a laptop battery?

randomuser gravatar imagerandomuser ( 2012-02-02 00:22:33 -0500 )edit

4 Answers

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answered 2012-02-02 06:06:35 -0500

lzap gravatar image

Expect the power regression bug to be fixed in the next Fedora version. This will help for sure! And there is still room for optimalizations.

Biggest issues are screen (dim), cpu (try to minimize it) and hdd (spin it down if possible). I highly recommend to install tuned daemon and configure it for the best savings. See here (this guide is for Fedora 15 but tuned chapters are valid for F16):

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answered 2012-02-27 18:17:55 -0500

gman gravatar image

My dell vostro v131 runs 6:20 hours on battery using fedora 16 after some minor tweaks: YMMV

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answered 2012-02-01 22:01:55 -0500

FranciscoD_ gravatar image


yum install powertop

Go to the tunables tab and see what can be done.

Switch off services you don't need:

systemctl disable <servicename>.service


Are you sure it decreased from 4.5 hours to 1.5 hours? I suggest you retake the measurement.

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answered 2012-03-09 18:51:43 -0500

Pankaj gravatar image

yes i am sue it has reduced to 1.5 hrs i want to use fedora 16, but due to battery problem i have not started using it... plz suggest me

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Asked: 2012-02-01 20:49:33 -0500

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Last updated: Mar 09 '12