The Jag battery issued resulted in less than half an hour's time... This from MacFixit's special report on X.2.4 Portable Battery failure Users affected by the strange bug that causes portable (PowerBook/iBook) battery capacity to quickly deplete after upgrading to Mac OS X 10.2.4 should investigate a replacement battery, according to reader reports suggesting that Mac OS X 10.2.4 can be safely installed with the new power packs. Lucy Johnson writes: "I have had no relapse of the short battery life/failure to charge issues since getting my PowerBook back from Apple last Thursday. As soon as I received it I updated to 10.2.4 again because I felt that the cause of my problem was hardware, not this update. I ran my computer with the adapter attached until last night, 10/9/03, and then unplugged and ran on battery until it was completely drained. I recharged it successfully to 100 percent with no problems, the adapter light is glowing green and the charge percent is showing 100 percent." The replaced part (for a 12-inch PowerBook) is: 603-1204 Battery, LITH ION; 46W/630-3961 PCBA; DC to DC. If you are experiencing this problem, you may want to download the small Mac OS X utility X-Charge, which displays an antialiased graph of the battery charge over time (up to 24 hours) and keeps in a log file all battery related events. don hinkle wrote: > I remember some time ago, on this list there was some chat about battery > time under Jaguar but I paid little attention since I was still running > OS 9. Well, now I'm almost fulltime in Jag...and I just started my iBook > in a situation where it's running on battery, and the icon shows 2:53 > time remaining. Under 3 hours, whereas before, in 9, I was getting close > to 4. Big difference, eh? I've just lowered the brightness level, but > can't imagine what else might help. Is this an issue for a new battery? > Could folks who have new models and/or new batteries share what times > they're showing? thanks, >