<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><br><div><div>On 18 Sep 2008, at 01:11, Carole Franklin wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div> <font size="2"><font face="Courier, Courier New"><span style="font-size:12pt">Hi Ti-book people:<br> <br> I have been using my 867 MHZ ti-book more on the road recently and my battery keeps dying on me —it lasts about 3 hours max, just using MsWord. I bought the laptop right when the aluminum Powerbook was introduced. I can’t remember when that was, but it is the original battery that I have. Two questions, can you recommend a back-up battery? There seems to be a lot of them out there with differing prices. <br></span></font></font></div></blockquote></div><br><div>Carole - the aluminium Powerbook was introduced 5 years ago this month (that is when I ordered my current one, that is why I remember), so if you have the original battery from 5y ago, and are still getting 3h of life, that seems amazing ! I would hardly call that "dying" !</div><div><br></div><div>Li-ion batteries seem to last about 2 years, normally, 300 to 500 'cycles'.</div><div><br></div><div>I use Coconut Battery to follow the status of my battery.</div><div><br></div><div><a href="http://www.coconut-flavour.com/coconutbattery/">http://www.coconut-flavour.com/coconutbattery/</a></div><div><br></div><div>I bought my current battery from OWC. The first one they sent me was defective, but they replaced it and their battery is excellent. It has about 10% greater capacity than the original Apple one. </div><div><br></div><div>Other World Computing, Inc.<br>1004 Courtaulds Drive<br>Woodstock, IL 60098<br>(815)338-8685 </div><div><br></div><div>regards, Trevor</div><div><br></div></body></html>