Sleep Mode drains about 30% per day

Discussion in 'MacBook Air' started by RightMACatU, Oct 11, 2012.

  1. RightMACatU macrumors 65816

    RightMACatU

    Joined:
    Jul 12, 2012
    Location:
    192.168.1.1
    #1
    I've been keeping an eye on my power consumption since 10.8 on my 13" MBA and I've noticed that Sleep Mode will drain at least 30% of power per 24h... of sleep since 10.8.2!!!
    I use to recharge every 3 days. Now it's like every day or day and a half.

    I remember reading something about 'keeping a light on' in 10.8 but if that's the case, I'd like to know how to shut that light :rolleyes:

    Anyone else noticed this?
     
  2. WesCole macrumors 6502a

    Joined:
    Jul 1, 2010
    Location:
    Texas
    #2
    Do you have Power Nap enabled? It will periodically check for email, notifications, etc. It will drain your battery faster, but not sure how much faster. If you do have it enabled, try disabling it and see how your battery life is.
     
  3. NewbieCanada macrumors 68030

    Joined:
    Oct 9, 2007
    #3
    My Retina loses about 3% overnight (generally from 6:00 PM to 10:00 AM). I'll have to check my Air.
     
  4. RightMACatU thread starter macrumors 65816

    RightMACatU

    Joined:
    Jul 12, 2012
    Location:
    192.168.1.1
    #4
    Power Nap... yes I remember now. It's disabled!
     
  5. WesCole macrumors 6502a

    Joined:
    Jul 1, 2010
    Location:
    Texas
    #5
    There is a check box under Energy Saver in preferences for Power Nap.
     
  6. mfram macrumors 65816

    Joined:
    Jan 23, 2010
    Location:
    San Diego, CA USA
    #6
    Are you leaving Bluetooth on? If so, that can cause quite a drain while sleeping.
     
  7. RightMACatU thread starter macrumors 65816

    RightMACatU

    Joined:
    Jul 12, 2012
    Location:
    192.168.1.1
    #7
    Wireless and Bluetooth (for the KB and mouse) have always been on and Power Nap off under 10.8 and 10.8.1.

    I saw an immediate difference with 10.8.2 and started turning off Wireless before 'sleeping'... but still...
     
  8. fleawannabe macrumors regular

    Joined:
    Dec 16, 2011
    #8
    Well that does not sound too horrible considering average is 1% for every hour.
     

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