My MacBook here just died. No warning, no errors, it just turned itself off. Like it fainted. Which for a moment I assumed meant the battery was flat, but it's at 42%. Que? Eddie, please don't be getting crotchety on me! I love you, my facsist white laptop!
This came up last week on a Mac maillist I read, and someone replied with the following:
ReplyDelete"Check your old battery's full-charge level.
Go to "About this Mac" -> "More
info" -> Power -> Battery -> Full charge capacity. If it's way less than 5000, the battery is at fault.
If your battery is fine, try resetting your Mac's power management unit:
MacBooks: http://support.apple.com/kb/HT1411
PowerBooks: http://support.apple.com/kb/HT1431
"
My MacBook Pro was shutting down when the battery was around 77% full and 65% full (had two batteries). They read out as capacity in the 2200 and 1800 range, not 5000. So I bought a replacement battery and everything's back to normal.
best,
Steve B
http://badger.livejournal.com
http://www.subscapeannex.com