Power Nap on Battery?

Discussion in 'OS X Mountain Lion (10.8)' started by Scuba629, Jul 27, 2012.

  1. macrumors regular

    Jul 14, 2010
    I guess u have to turn this on? Has anyone checked out their battery life using it?
  2. macrumors member

    Jul 14, 2008
    My mid-2011 Air seems to be losing about 15% charge per day since Power Nap got installed. It was < 3% per day on Lion.
  3. macrumors G5


    Jul 29, 2011
    Somewhere Back In The Long Ago
    I've turned it on on my mBA but haven't really kept an eye on the battery to be honest...It backs up, collects email and also has alerted me and downloaded an app update...Of course the install needed my password, so it just sat there ready...It's a nice touch, but not a feature I use a lot as yet.
  4. macrumors 68000

    Apr 27, 2005
    Also curious about this. Anyone with experience?

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