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<?xml version="1.0" encoding="utf-8"?>
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<page xmlns="http://projectmallard.org/1.0/" type="topic" style="tip" id="power-batteryoptimal">
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<link type="guide" xref="power#battery"/>
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<desc>Don't let the battery run down too far.</desc>
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<revision pkgversion="3.0" date="2011-04-04" status="final"/>
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<revision pkgversion="3.0" version="3.0.1" date="2011-04-06" status="outdated"/>
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<credit type="author">
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<name>Dokumentationsprojekt för GNOME</name>
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<email>gnome-doc-list@gnome.org</email>
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<credit type="author">
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<name>Phil Bull</name>
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<email>philbull@gmail.com</email>
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<include xmlns="http://www.w3.org/2001/XInclude" href="legal.xml"/>
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<title>Get the most out of your laptop battery</title>
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<p>As laptop batteries age, they get worse at storing charge and their capacity gradually decreases. There are a few techniques that you can use to prolong their useful lifetime, although you shouldn't expect a big difference.</p>
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<p>Don't let the battery run all the way down. Always recharge <em>before</em> the battery gets very low; recharging when it is only partially discharged is more efficient.</p>
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<p>Heat has a detrimental effect on a battery's charging efficiency. Don't let the battery get any warmer than it has to.</p>
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<p>Batteries age even if you leave them in storage. There is little advantage in buying a replacement battery at the same time as you get the original battery - always buy replacements when you need them.</p>
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<p>This advice applies specifically to Lithium-Ion (Li-Ion) batteries, which are the most common type. Other types of battery may behave differently.</p>