Leopard killed my battery!

Discussion in 'MacBook Pro' started by dal20402, Oct 31, 2007.

  1. dal20402 macrumors 6502

    Joined:
    Apr 24, 2006
    #1
    CD MBP, 2.16 GHz, 2GB RAM, very early build.

    Installed Leopard and am (mostly) loving it -- while connected to AC power.

    When I unplugged, I suddenly noticed I had less than an hour of battery life. :eek:

    A check in System Profiler showed my battery as having 2607 mAh full charge capacity -- before I installed Leopard, it had ~5100 mAh. This is a relatively new battery with 65 cycles on it.

    The battery works fine -- no sudden shutdown or anything -- but this suddenly lower capacity is very strange. I tried an SMC reset with no effect. Next I'll try calibration. Has anyone experienced this? Causes?
     
  2. leekohler macrumors G5

    leekohler

    Joined:
    Dec 22, 2004
    Location:
    Chicago, Illinois
    #2
    I had that happen with my iBook G4 as well. After about a day of use, the battery capacity went back to normal. I don't know what the cause was, I was just glad it seemd to fix itself. I've had no further issues with it.
     
  3. djejrejk macrumors 6502a

    djejrejk

    Joined:
    Jan 3, 2007
    Location:
    Uhh...
    #3
    Weird, my battery life has improved... or it seems like it has
     
  4. cyclingplatypus macrumors 6502a

    cyclingplatypus

    Joined:
    Mar 15, 2007
    Location:
    Earth
    #4
    I agree with you...mine has improved.
     
  5. Warbrain macrumors 603

    Warbrain

    Joined:
    Jun 28, 2004
    Location:
    Chicago, IL
    #5
    My iBook, which has had the worst battery life for a long time, actually got better with this upgrade. It charges much better now and I get much better management.
     
  6. dal20402 thread starter macrumors 6502

    Joined:
    Apr 24, 2006
    #6
    This now appears to have happened to me.

    I charged my battery fully and began to discharge as fast as possible (turn on airport, start sending data over the network, turn brightness up, and start 3 openssl speed processes). After 5 minutes, I was down to 72%. Then I noticed my battery indicator suddenly and randomly jumped to 89%. I checked in System Profiler and it now reports that my battery has a full charge capacity of 5266 mAh, which is slightly more than it was before the upgrade to Leopard. Now I hope it stays this way... :confused:
     
  7. gdesalvo@umail. macrumors member

    Joined:
    May 1, 2007
    #7
    Just an idea...

    Did anyone find it likely that while the new OS is indexing, which can take up to 4 hours, it would be using a lot of CPU power and thus be rather power inefficient? That's probably what happened as well as booting all the new apps. After a day of use all is likely back to normal and indexed which means you get your battery indexed. although this seems unlikely
     
  8. leekohler macrumors G5

    leekohler

    Joined:
    Dec 22, 2004
    Location:
    Chicago, Illinois
    #8
    Hmm, could be. I never actually thought of that.
     

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