Question regarding the Calibration ..

Discussion in 'MacBook Pro' started by djarsalan2006, Jun 28, 2009.

  1. djarsalan2006 macrumors regular

    Joined:
    Apr 14, 2009
    Location:
    New York City
    #1
    Hey guys, so im on my last step, where im suppossed to use the battery until it goes to sleep automatically, after this step, i have to let the laptop sleep for 5 hours or more, after that when i have to plug in my laptop, can i use it while charging ? or i have to wait till its fully charged ?
    Thanks
     
  2. djarsalan2006 thread starter macrumors regular

    Joined:
    Apr 14, 2009
    Location:
    New York City
  3. Some Guy 555 macrumors regular

    Joined:
    May 26, 2009
    #3
    You can use it while its charging. Thats what I always do when I do that step in the calibration of the battery.
     
  4. Heb1228 macrumors 68020

    Heb1228

    Joined:
    Feb 3, 2004
    Location:
    Virginia Beach, VA
    #4
    This isn't quite the exact science you're making it out to be. It's fine to plug it back in after it goes to sleep (no need to wait 5 hours) and if you want to be particular, leave it alone while it charges, but it really won't matter enough to make any difference.
     
  5. djarsalan2006 thread starter macrumors regular

    Joined:
    Apr 14, 2009
    Location:
    New York City
    #5
    what about the 5 hours before that last step ?
    what if it will be more than 5 hours, lets say 8 hours ?
     
  6. Heb1228 macrumors 68020

    Heb1228

    Joined:
    Feb 3, 2004
    Location:
    Virginia Beach, VA
    #6
    It will probably power off if you wait that long. Not really a problem, its just not necessary.
     
  7. Ruahrc macrumors 65816

    Joined:
    Jun 9, 2009
    #7
    Actually I believe the 5 hours after forced sleep is necessary, because the computer needs to calibrate also how much "reserve" power it has before hibernating (I think Apple calls this "safe sleep").

    When I calibrated m battery I let it run all the way down, then 5hrs after sleep, and then let it fully charge overnight without using it. When I turned it on again after fully charging, it restored from hibernation not just standard sleep indicating that 5 hours was necessary to drain the battery down from regular sleep to safe-sleep mode.

    If you read apple's website it specifically states that for intel-based laptops you need this extra 5 hours of post-sleep discharge, so I'd say in order to really convince yourself you did it correctly, let it go that extra 5 hours.

    Ruahrc
     

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