Short sleep times

Discussion in 'MacBook Pro' started by Eallan, May 20, 2011.

  1. Eallan macrumors 6502

    Joined:
    Sep 12, 2007
    #1
    I have a late 2010 core i7 macbook pro.

    It seems that it burns through battery pretty fast while in sleep mode.

    Last night I took it off the charger at 4pm. This morning at 7am it was at 79%.

    21% in one night seems terrible for sleep mode.
     
  2. NZed macrumors 65816

    NZed

    Joined:
    Jan 24, 2011
    Location:
    Canada, Eh?
    #2
    Thats unusual. It would usually drain about 1% per hour.. whats your cycle?
     
  3. Eallan thread starter macrumors 6502

    Joined:
    Sep 12, 2007
    #3
    My cycle?

    Health Information:
    Cycle count: 75
    Condition: Normal
     
  4. JTToft macrumors 68040

    Joined:
    Apr 27, 2010
    Location:
    Aarhus, Denmark
    #4
    15 hours is a pretty long night, isn't it?

    21 % drain after 15 hours is about 1 % per hour (exactly 1,4 %).
     
  5. Eallan thread starter macrumors 6502

    Joined:
    Sep 12, 2007
    #5
    So this is to be expected? I had a 2008 MBP and i swear it was much more conservative in sleep mode.

    Perhaps my iPad ruined expectations haha
     
  6. JTToft macrumors 68040

    Joined:
    Apr 27, 2010
    Location:
    Aarhus, Denmark
    #6
    - No, I would say that 21 % after 15 hours is a bit much.

    If it bothers you, have a look at the different settings for the laptop's sleep mode, here: http://www.macworld.com/article/53471/2006/10/sleepmode.html
    If your computer needs to sleep for a long time, you could set it to mode 1, which will not drain any power at all.

    I have mine set to mode 0, which means it goes to sleep faster than with the default setting.
     
  7. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #7
    It sounds like your Mac didn't stay in sleep mode all night.

    Mac OS X: Why your Mac might not sleep or stay in sleep mode
    Determine why your Mac wakes up from sleep

    This should answer most, if not all, of your battery questions:
     
  8. Eallan thread starter macrumors 6502

    Joined:
    Sep 12, 2007
    #8
  9. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #9
    Did you have any device plugged into any port?
     
  10. Eallan thread starter macrumors 6502

    Joined:
    Sep 12, 2007
    #10
    Nope, zipped up in a bag. It's kinda been an ongoing thing. I'm usually pretty surprised at how low it is.
     
  11. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #11
    It's consuming a bit more power than normal during sleep, but not significantly so. Around 1% per hour of sleep is normal, and you're at 1.4%. You might try resetting the SMC. Instructions are in the Battery FAQ I posted, under CHARGING.
     
  12. Eallan thread starter macrumors 6502

    Joined:
    Sep 12, 2007
    #12
    I think i'll do that. Never have on this machine but i recall doing it to my old one. Thanks.
     
  13. JTToft macrumors 68040

    Joined:
    Apr 27, 2010
    Location:
    Aarhus, Denmark
    #13
    Just for reference: My machine has used 8 % since I put it to sleep yesterday - that was 10 hours ago.
     
  14. Eallan thread starter macrumors 6502

    Joined:
    Sep 12, 2007
    #14
    Thank you, good to have comparisons.
     

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