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Possible Duplicate:
Tips to extend battery life for laptops and notebooks

I have a basic Notebook Samsung RV513 with Ati Vision AMD Graphics & chipset but I realized than ubuntu 12.04.1 drains my battery. I checked some forums and help but it said modifying my kernel and bla bla, looks hard to do any other suggestion?

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marked as duplicate by Jorge Castro, Ringtail, Tom Brossman, fossfreedom Dec 3 '12 at 21:01

This question was marked as an exact duplicate of an existing question.

I recommend installing jupiter

sudo add-apt-repository ppa:webupd8team/jupiter
sudo apt-get update
sudo apt-get install jupiter

and running powertop and changing the tunables

sudo apt-get powertop
sudo powertop

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