See my bottom post reply to your top post reply to my original bottom post reply. :^)
-- Jim On Nov 23, 2008, at 2:26 PM, Simon Royal wrote: > > Jim > > The battery is playing games with me. Earlier today I managed to > boot the > PowerBook on a fully charged battery and then the machine died and > went to > sleep. > > I am now coming up for an hour of usage, heavy usage. I ran every > piece of > software installed, checked for updates for all and am currently > downloading an Office update. > > It still shows it has half a battery left, estimated 59 minutes. > > If it does hold out, that will be two hours, if it dies now it will > still > be an hour. > > Simon > > On Nov 23 2008, Jim Scott wrote: > > On Nov 23, 2008, at 1:25 PM, Simon Royal wrote: > >> >> Hi >> >> I have a PowerBook battery and charging question. >> >> It took about 3 hours to charge the battery to full. I was using it >> at the >> time and it is not an official charger, just one of those cheap >> white ones, >> so it may not be a high power one. >> >> I can live with this, however on full charge the battery lasted less >> than >> ten minutes before putting the machine to sleep. >> >> Does this indicate the battery is just about dead. >> >> I ran Coconut Battery again today: >> >> Original battery: 4220mAh >> Current battery: 2885mAh >> Battery-Loadcycles: 742 >> >> On full charge it measures only 68% in Coconut Battery. >> >> I would have thought personally, given the results from Coconut >> Battery, it >> would have held for about an hour. >> >> Any ideas? Any help? >> >> Simon > > I'd be looking for a new, or better, battery. The problem is not so > much that your battery utility says the battery has about two-thirds > of its "life" remaining, it is that 742 load cycles is about twice the > number you should reasonably expect to get. As it is, the battery > already has lasted almost twice as long as "normal," in my experience. > Batteries do wear out. > > Jim > > In that case, have you reset your PMU (power management unit)? Tried other battery utilities? What does About This Mac>More Information>Power have to say? If you still get 742 battery load cycles as an answer, then I'd still suspect the battery. Most OS X battery utilities I've used suggest 400 load cycles is the expected lifespan for an OEM Apple battery. In your case, you also may have PMU issues. I've seen similar goofy battery behavior like yours before. You may have a corrupted PMU, aided and abetted by an AC adapter that's not up to Apple's specs, that's getting confusing feedback from a very, very well-used battery. Reset your PMU, get an AC charger that meets Apple's specs, buy a new battery and keep on PowerBooking without all the confounding battery drama. -- Jim --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to Low End Mac's G-Books list, a group for those using G3 iBooks and PowerBooks (we run a separate list for G4 'Books). The list FAQ is at http://lowendmac.com/lists/g-books.html and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/g-books?hl=en Low End Mac RSS feed at feed://lowendmac.com/feed.xml -~----------~----~----~----~------~----~------~--~---
