<p>Another good tune up program is TuneXP. I don't believe it will increase your battery life, but it should make your computer more snappy.</p>
<p>For li-ion batteries, read this:
<a href="http://www.batteryuniversity.com/parttwo-34.htm%5B/url%5D">http://www.batteryuniversity.com/parttwo-34.htm</a></p>