How's your battery?

Discussion in 'MacBook Air' started by joewillmott, Jul 25, 2012.

  1. joewillmott macrumors regular

    Joined:
    May 22, 2012
    Location:
    England
    #1
    I just returned my rMBP and got a MBA (13"/i5/8GB/128) and have been pleasantly surprised by my battery life, after being let down by the rMBp.

    Currently running many Safari tabs, Mail and Word, brightness is halfway, still got 6:59 left at 63% charged - absolute madness!

    How are other people's? Not the most exciting conversation, I know.
     
  2. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #2
    There are many factors that impact your battery life, so comparing with other people isn't very revealing. They could have a completely different mix of apps and settings which could make their battery life significantly different than yours. See the BATTERY LIFE FROM A CHARGE section of the following link for details, including tips on how to maximize your battery life.

    This should answer most, if not all, of your battery/charging questions:
     
  3. joewillmott, Jul 26, 2012
    Last edited: Jul 26, 2012

    joewillmott thread starter macrumors regular

    Joined:
    May 22, 2012
    Location:
    England
    #3
    I wasn't complaining... quite the opposite. I still have almost 7 hours left at 63% charge. Just wanted to know if everyone's is this good or if I got lucky.

    Edit: 12 and a half hours =D
     
  4. RightMACatU macrumors 65816

    RightMACatU

    Joined:
    Jul 12, 2012
    Location:
    192.168.1.1
    #4
    Get it tested… I’m thinking steroids here ;)
     
  5. dmelgar macrumors 68000

    Joined:
    Apr 29, 2005
    #5
    That doesn't seem accurate. The 7 hour estimate is usually pretty reasonable from full.

    The Airs are very sensitive to CPU load. If you have the brightness turned all the way down, and don't do much of anything, you could probably get 10-12 hours. But if you crank up the brightness, light up the keyboard, and crank both cores to max, you may only get a little over 2hrs. Completely depends on what you're doing.
     
  6. jmgregory1 macrumors 65816

    jmgregory1

    Joined:
    Jun 24, 2010
    Location:
    Chicago and a few other places around the world
    #6
    I can usually make it through the day on battery, as long as I'm not keeping any adobe docs open or running videos - just safari, email, pages and numbers, maybe iphoto occasionally and easily get 7 hours out of my '11 13" 128gb air.
     
  7. mattopotamus macrumors G5

    mattopotamus

    Joined:
    Jun 12, 2012
    #7
    that is probably b.c you have absolutely nothing running and are not doing a single thing. I have seen 15 hours completely idle which is obviously not the case. As soon as you open one tab in safari you will see the real numbers start to reflect
     
  8. BigMcGuire macrumors demi-god

    BigMcGuire

    Joined:
    Jan 10, 2012
    Location:
    California
    #8
    Wow, it looks like quite a few people didn't even try to read your post. lol...

    I can get 12 hours on my Macbook Air doing light reading/note taking (with brightness down). I get 7 hours with heavy browsing, youtube videos, brightness up. About 10 hours with my typical brightness at 20% usage.

    Then, I've seen other people I know with Macbook Airs blowing through their battery in less than 5 hours. Usually with their CPU fans blairing, tons of stuff up, heavy CPU games running minimized, and several youtube videos going on at once. I'm not surprised that they look at me with pure disbelief when I say I can easily get 10+ hours of battery life.
     
  9. Acorn, Jul 26, 2012
    Last edited: Jul 26, 2012

    Acorn macrumors 68020

    Acorn

    Joined:
    Jan 2, 2009
    Location:
    macrumors
    #9
    im not really sure how long i get. i use 50% brightness and turn bluetooth off. it was at least 8 hours. i had the day off and was sitting on the couch surfing the web pretty much all day.

    my macbook pro was like this when i first got it too. surfing the web and such was easily 9+ hours but it was a core 2 duo. my battery is really good for a core i5 on this air.
     

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