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  <info>
    <link type="guide" xref="power#battery"/>
    <desc>Some laptops intentionally slow down when they are running on battery.</desc>
    
    <revision pkgversion="3.2" date="2011-09-26" status="final"/>
    
    <credit type="author">
      <name>Le projet de documentation GNOME</name>
      <email>gnome-doc-list@gnome.org</email>
    </credit>
    
    <include xmlns="http://www.w3.org/2001/XInclude" href="legal.xml"/>
  
    <mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
      <mal:name>Luc Pionchon</mal:name>
      <mal:email>pionchon.luc@gmail.com</mal:email>
      <mal:years>2011</mal:years>
    </mal:credit>
  
    <mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
      <mal:name>Claude Paroz</mal:name>
      <mal:email>claude@2xlibre.net</mal:email>
      <mal:years>2011</mal:years>
    </mal:credit>
  </info>

<title>Why is my laptop slow when it's on battery?</title>

<p>Some laptops intentionally slow down when they are running on battery in order to conserve power. The laptop's processor (CPU) switches to a slower speed, and processors use less power when running slower, so the battery should last longer.</p>

<p>This feature is called <em>CPU frequency scaling</em>.</p>

</page>
