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<page xmlns="http://projectmallard.org/1.0/"
type="topic"
id="power-lowpower">
<info>
<link type="guide" xref="power#battery"/>
<desc>Allowing the battery to completely discharge is bad for it.</desc>
<revision pkgversion="3.0" version="0.1" date="2011-03-19" status="review"/>
<credit type="author">
<name>GNOME Documentation Project</name>
<email>gnome-doc-list@gnome.org</email>
</credit>
<include href="legal.xml" xmlns="http://www.w3.org/2001/XInclude"/>
</info>
<title>Why did my computer turn off/hibernate when the battery got to 10%?</title>
<p>When the charge level of the battery gets too low, your computer will automatically hibernate (that is, it will save all of your open documents and applications, and then turn off). It does this to make sure that the battery doesn't completely discharge, since this is bad for the battery. If the battery just ran out, the computer wouldn't have time to shut down properly either.</p>
<p>You can change what happens when the battery level gets too low by clicking your name at the top of the screen, selecting <gui>System Settings</gui>, and then opening the <gui>Power</gui> settings. Look at the <gui>When power is critically low</gui> setting. You can choose for the computer to hibernate or shut down; if you choose shut down, your applications and documents <em>will not</em> be saved before the computer turn off.</p>
<p>Some computers have problems hibernating, and may not be able to recover the applications and documents you had open when you turn on the computer again. In this case, it is possible that you could lose some of your work if you didn't save it before the computer hibernated. You may be able to <link xref="power-suspendfail">fix problems with hibernation</link> though.</p>
</page>
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