4 Replies Latest reply: Dec 23, 2008 11:20 PM by Galoncitron
Galoncitron Level 1 (0 points)
The Mac Book Pro 3.1 just dies when the battery dies. It's suposed to go to sleep instead of just cutting the power so that I loose all my unsaved work.

I have ordered a new battery. But still, I thought this isn't supposed to happen even with a battery that's been through some cycles? (It never happened with my G4 mac laptop with a battery in even worse condition)

MacBookPro 2.6GHZ, Mac OS X (10.5.1)
  • iVmichael Level 6 (13,725 points)
    When did you last re-calibrate the Battery?
  • Galoncitron Level 1 (0 points)
    That article says nothing about the computer dying instead of going into sleep mode.

    Besides, when my computer returned from the yearly visit to the mac repair center to fix faulty components (the dvd this time), the battery was empty so the recharge would count as a calibration I guess... or if not, the last time it died on me would count.
  • iVmichael Level 6 (13,725 points)
    +That article says nothing about the computer dying instead of going into sleep mode+

    No it doesn't, but a poorly calibrated battery can do what you're experiencing ...

    +Besides, when my computer returned from the yearly visit to the mac repair center to fix faulty components (the dvd this time), the battery was empty so the recharge would count as a calibration I guess... or if not, the last time it died on me would count.+

    So, from that it's clear you haven't re-calibrated the battery properly, ever ..

    Reset the SMC (System Management Controller) and re-calibrate the Battery then see how it performs ?
  • Galoncitron Level 1 (0 points)
    I think you are onto something, because the battery clock is completely off.

    First, it showed (correctly) 18 minutes of battery. Then, it suddenly increased to over one hour, and after about 18 minutes the computer just died, without warning.

    There is no mention of this particular hardware construction error behaviour (or software bug) in that article though.