Skip to content

help.ubuntu-it.org
help.ubuntu-it.org
Switch branch/tag
Find file BlameHistoryPermalink
power-batteryestimate.html 7.35 KB
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 
<!DOCTYPE html>
<html lang=it>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>The estimated battery life is wrong</title>
<link rel="stylesheet" type="text/css" href="C.css">
<script type="text/javascript" src="jquery.js"></script><script type="text/javascript" src="jquery.syntax.js"></script><script type="text/javascript" src="yelp.js"></script><link rel="stylesheet" type="text/css" href="main.css">
<link rel="stylesheet" type="text/css" href="custom.css">
<script type="text/javascript" src="http://ubuntu-it.org/sites/all/themes/light-drupal-theme/js/cookies.js"></script><script type="text/javascript" src="http://ubuntu-it.org/sites/all/themes/light-drupal-theme/js/accessibility.js"></script>
</head>
<body>
<script type="text/javascript">var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www.");
      document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E"));
      </script><script type="text/javascript">
      try {
      var pageTracker = _gat._getTracker("UA-8147493-2");
      pageTracker._trackPageview();
      } catch(err) {}
      </script><div id="fixed-header">
<div id="header" class="shadowed curved-bottom"><div class="container">
<ul class="links">
<li><a href="http://help.ubuntu-it.org">Documentazione ufficiale</a></li>
<li><a href="http://wiki.ubuntu-it.org/Documentazione/Indice">Guide della comunità</a></li>
<li class="active"><a href="http://help.ubuntu-it.org/12.04/desktop/index.html">12.04 LTS</a></li>
</ul>
<div id="logo">
<div id="ubuntu-it-sites">
<a href="http://www.ubuntu-it.org">web </a><a href="http://wiki.ubuntu-it.org">wiki </a><a href="http://forum.ubuntu-it.org">forum </a><a href="http://planet.ubuntu-it.org">planet </a>
</div>
<a href="http://help.ubuntu-it.org" title="Ubuntu - Documentazione ufficiale"><span>help.</span>ubuntu-it
            </a><span>comunità italiana</span>
</div>
<div class="buttons"><div id="accessibility" title="Maggiore focus ai contenuti" onclick="accessibility_toggle();"></div></div>
</div></div>
<div id="subheader"><div class="container"><div class="container-inside"><ul class="links secondary-links">
<li class="active"><a href="http://help.ubuntu-it.org/12.04/desktop/index.html" title="Guida utente di Ubuntu 12.04 LTS">Desktop</a></li>
<li><a href="http://help.ubuntu-it.org/12.04/server/serverguide/it/index.html" title="Guida utente di Ubuntu server 12.04 LTS">Server</a></li>
<li><a href="http://help.ubuntu-it.org/12.04/search.php" title="Ricerna della documentazione di Ubuntu 12.04 LTS">Ricerca</a></li>
</ul></div></div></div>
</div>
<div id="content">
<div id="content-top"></div>
<div class="container">
<div id="search-box"><form action="http://help.ubuntu-it.org/12.04/search.php" id="cse-search-box"><div><input type="text" name="s" value="Cerca ..." onfocus="if(this.value == 'Cerca ...') { this.value = ''; }" onblur="if (this.value == '') {this.value = 'Cerca ...';}"></div></form></div>
<div class="trails">
<div class="trail">
<a href="http://help.ubuntu-it.org" class="trail">Documentazione di Ubuntu</a> » <a class="trail" href="index.html" title="Guida Ubuntu Desktop"><span class="media media-image"><img src="figures/ubuntu-logo.png" height="16" width="16" alt="Help"></span> Guida Ubuntu Desktop</a> » <a class="trail" href="hardware.html" title="Hardware e driver">Hardware</a> » <a class="trail" href="power.html" title="Power &amp; battery">Power &amp; battery</a> › <a class="trail" href="power.html#battery" title="Battery settings">Battery settings</a> » </div>
<div class="trail">
<a href="http://help.ubuntu-it.org" class="trail">Documentazione di Ubuntu</a> » <a class="trail" href="index.html" title="Guida Ubuntu Desktop"><span class="media media-image"><img src="figures/ubuntu-logo.png" height="16" width="16" alt="Help"></span> Guida Ubuntu Desktop</a> » <a class="trail" href="prefs.html" title="Impostazioni utente e di sistema">Settings</a> » <a class="trail" href="power.html" title="Power &amp; battery">Power &amp; battery</a> › <a class="trail" href="power.html#battery" title="Battery settings">Battery settings</a> » </div>
</div>
<div id="cwt-content"><div id="page">
<div id="content">
<div class="hgroup"><h1 class="title"><span class="title">The estimated battery life is wrong</span></h1></div>
<div class="region">
<div class="contents">
<p class="p">When you check the remaining battery life, you may find that the time
remaining that it reports is different to how long the battery actually lasts.
This is because the amount of remaining battery life can only be estimated.
Normally, the estimates improve over time.</p>
<p class="p">In order to estimate the remaining battery life, a number of factors must be
taken into account. One is the amount of power currently being used by the
computer: power consumption varies depending on how many programs you have
open, which devices are plugged in, and whether you are running any intensive
tasks (like watching a DVD or converting music files, for example). This
changes from moment to moment, and is difficult to predict.</p>
<p class="p">Another factor is how the battery discharges. Some batteries lose charge
faster the emptier they get. Without precise knowledge of how the battery
discharges, only a rough estimate of remaining battery life can be made.</p>
<p class="p">As the battery discharges, the power manager will figure out its discharge
properties and will learn how to make better estimates of battery life. They
will never be completely accurate, though.</p>
<div class="note" title="Annotazione"><div class="inner"><div class="region"><div class="contents">
<p class="p">If you get a completely ridiculous battery life estimate (say, hundreds of
  days), the power manager is probably missing some of the data it needs to
  make a sensible estimate.</p>
<p class="p">If you unplug the power and run the laptop on battery for a while, then
  plug it in and let it recharge again, the power manager should be able to get
  the data it needs.</p>
</div></div></div></div>
</div>
<div class="sect sect-links">
<div class="hgroup"></div>
<div class="contents">
<div class="links seealsolinks"><div class="inner">
<div class="title"><h2><span class="title">More Information</span></h2></div>
<div class="region"><ul><li class="links "><a href="power.html#battery" title="Battery settings">Battery settings</a></li></ul></div>
</div></div>
<div class="links seealsolinks"><div class="inner">
<div class="title"><h2><span class="title">Confronta anche</span></h2></div>
<div class="region"><ul><li class="links ">
<a href="power-batterywindows.html" title="Perché la batteria dura meno rispetto a Windows o Mac OS?">Perché la batteria dura meno rispetto a Windows o Mac OS?</a><span class="desc"> — È possibile che delle modifiche da parte del produttore e stime diverse della vita della batteria causino tale problema.</span>
</li></ul></div>
</div></div>
</div>
</div>
</div>
<div class="clear"></div>
</div>
<div id="pagebottom"></div>
</div></div>
</div>
<div id="content-bottom"></div>
</div>
<div id="footer"><div class="container">
<div id="ubuntulinks">Ubuntu e Canonical sono marchi registrati da Canonical Ltd. <br>
Questa opera è pubblicata sotto una <span style="text-decoration: underline;"><a href="http://help.ubuntu-it.org/legal.html">licenza</a></span> Creative Commons.
</div>
<div id="pagebottom"></div>
</div></div>
</body>
</html>