Macbook air faster when running on battery?

Discussion in 'MacBook Air' started by ajack, Dec 26, 2011.

  1. ajack macrumors member

    May 31, 2010
    Hi everyone,

    This isn't the first time that this question came to my mind, cause I found that kinda weird! I'm using lion 10.7.2 and everytime I plug off the charger, my mac just runs faster! I'm using MBA mid 2009, and time just slow it down so much. Most of my relate works is surfing web, iTunes, watching HD movies.

    I just made up my mind that I would definitely buy next MBA in mid (or late) 2012, so the battery cycle is not a big deal anymore. But I just don't understand why my MBA just run faster when the power source is merely battery.
  2. Abazigal macrumors G3


    Jul 18, 2011
    Is there some power profile you can check? My guess is there are some programs/processes which are disabled when you are running off battery solely (possibly to cut down on power consumption, but likely hogs less processor power in the process as well). :)
  3. johnhurley macrumors 6502a


    Aug 29, 2011
    Run a geek bench report when on just battery and also on power.

    Some people have reported some weird anomalies after fully discharging battery. A couple of bypasses reported by various types of system resets.
  4. GGJstudios macrumors Westmere


    May 16, 2008
    There should be no performance difference at all between running on AC power and battery power, unless you've changed some settings. This should answer most, if not all, of your battery questions:

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