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    <link type="guide" xref="power#battery"/>
    <link type="seealso" xref="power-batteryestimate"/>

    <revision pkgversion="3.4.0" date="2012-02-19" status="review"/>

    <desc>Tweaks from the manufacturer and differing battery life estimates may be the cause of this problem.</desc>
    <credit type="author">
      <name>Projeto de documentação do GNOME</name>
      <email>gnome-doc-list@gnome.org</email>
    </credit>
    <credit type="author">
      <name>Phil Bull</name>
      <email>philbull@gmail.com</email>
    </credit>

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    <mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
      <mal:name>Rodolfo Ribeiro Gomes</mal:name>
      <mal:email>rodolforg@gmail.com</mal:email>
      <mal:years>2011, 2012.</mal:years>
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    <mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
      <mal:name>Rafael Ferreira</mal:name>
      <mal:email>rafael.f.f1@gmail.com</mal:email>
      <mal:years>2012, 2013, 2014.</mal:years>
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    <mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
      <mal:name>Enrico Nicoletto</mal:name>
      <mal:email>liverig@gmail.com</mal:email>
      <mal:years>2013.</mal:years>
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    <mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
      <mal:name>João Santana</mal:name>
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      <mal:years>2013.</mal:years>
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<title>Why do I have less battery life than I did on Windows/Mac OS?</title>

<p>Some computers appear to have a shorter battery life when running on Linux
than they do when running Windows or Mac OS. One reason for this is that
computer vendors install special software for Windows/Mac OS that optimizes
various hardware/software settings for a given model of computer. These tweaks
are often highly specific, and may not be documented, so including them in
Linux is difficult.</p>

<p>Unfortunately, there is not an easy way of applying these tweaks yourself
without knowing exactly what they are. You may find that using some <link xref="power-batterylife">power-saving methods</link> helps, though. If your
computer has a <link xref="power-batteryslow">variable-speed processor</link>,
you might find that changing its settings is also useful.</p>

<p>Another possible reason for the discrepancy is that the method of estimating
battery life is different on Windows/Mac OS than on Linux. The actual battery
life could be exactly the same, but the different methods give different
estimates.</p>
	
</page>
