2014 11" Air, battlery life around 6 hours. Normal?

Discussion in 'MacBook Air' started by iamsen47, Oct 13, 2015.

  1. iamsen47 macrumors regular

    Joined:
    Aug 18, 2012
    Location:
    Kobe, Japan
    #1
    It's something I've been wondering about for a while. I've never managed to get the magical 10 hour life. It's usually between 5~8 hours. I use this for development for Chrome, Brackets, Slack and Sourcetree are always on. Vagrant is up sometimes. At least one copy of gulp and sbt/activator are up at all times too.

    Bluetooth is always off. Wifi is always on. Brightness is at 4 bars in standard lighting.

    According to activity monitor, chrome seems to soak up the most battery life. It hangs around 25% avg energy consumption whereas everything else is usually below 10.

    Is this 'normal'?
     
  2. Sekelani macrumors 6502

    Sekelani

    Joined:
    May 26, 2012
    #2
    Yep. Seems pretty normal. My MacBook Pro 15 inch gets about that's battery life.
     
  3. cruisin macrumors 6502a

    cruisin

    Joined:
    Apr 1, 2014
    Location:
    Canada
    #3
    If I just use Word and Safari (without flash) and use a lower brightness setting, I can squeeze out 10 hours instead of the promised 8 hours on my 15 inch. Chrome is a power drain since it has no idle mode, and every tab is actually a separate Chrome window that is constantly running. Safari is much more efficient, and it stops itself if it detects it is covered up by another window (except audio/video playback).

    If you have multiple apps running then you will have less battery life, this is normal. The 10 hours is quoted for web browsing in Safari, so basically a light task, and you are putting a higher load on it. As an analogy, compare jogging 10 km with and without a backpack.
     
  4. SSD-GUY macrumors 6502a

    Joined:
    Sep 20, 2012
    Location:
    London, UK
    #4
    Chrome is a battery killer.

    I can get 9/10 hours of video on my 2013 11' Air. If I do mixed browsing, office, pdfs, evernote, music etc, I can squeeze out around 6/7 hours.

    I would move to Safari.

    Also, have a look at Anand's review of the 2013 Air.

    http://www.anandtech.com/show/7180/apple-macbook-air-11-2013-review/2

    The 2013 11' Air is able to get 6.5 hours of medium usage and 4 hours of heavy usage. I presume the 2014 Air will be about the same, if not slightly better, as there isn't that much of a difference between Haswell and Broadwell.
     
  5. Meister Suspended

    Meister

    Joined:
    Oct 10, 2013
    #5
    Depends on how you use it exactly.

    If you browse a lot/load new webpages frequently and even multitask with other apps, then 6 hours is a lot!!

    I get about the same time on my rmbp from webbrowsing only.
     

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