OS X Mavericks Battery Life

Discussion in 'OS X Mavericks (10.9)' started by gmansmg, Oct 6, 2013.

  1. gmansmg macrumors newbie

    Oct 6, 2013
    Hy, I have just installed Mavericks GM on my Macbook Air 2013 and I am experiencing some battery issues. It was a clean install, not an upgrade.

    I heard a lot of people asking about the 2013 MBA with mavericks regarding battery life, but honestly it doesn't seem an improvement atm.

    Right now my laptop is fully charged and it shows about 8 hours of battery life remaining. That is very weird, since it used to show 12 hours on Mountain Lion.

    I was expecting a big (not huge) improvement with the timer coalescing feature and am now a bit disappointed. I will perform a reinstall soon to check if the issues stick, but still, i find it very weird.

    Anybody else having this issue?
  2. 32KFJ macrumors regular


    May 28, 2012
    the battery life on my macbook pro (late 2011; 13") was about 7h with ML. now it went down to 4:30h.

    and it is draining quite fast...
  3. SgtPepper12 macrumors 6502a


    Feb 1, 2011
    The battery life of my Macbook Pro 2013 (mid 2010) went down significantly when I installed the GM (used to be like 7 hours, was 4 hours) at first. But now it's gone up quite a bit (it's now showing 8-12 hours, depending on usage). One of the things I noticed:
    I tend to leave E-Mail open all the time. It seems though that it's using quite a lot of CPU. After I left it closed the battery life improved dramatically.
  4. BasicGreatGuy Contributor


    Sep 21, 2012
    In the middle of several books.
    Showing 7hrs on my MBP 2011. But, as we all should know, that is subject to change, depending on usage.
  5. drew627 macrumors regular

    Jun 26, 2013
    This may have been your case: Usually after an OS install/update, Spotlight will (partially) reindex itself, causing a significant increase in CPU usage. This may have been the cause of the shorter "% battery left". Wait for a couple of hours and it'll go back to normal.
  6. nylon macrumors 65816


    Oct 26, 2004
    What he said. After an OS install the system will perform various processes to optimize the system. This will cause a spike in CPU usage from time to time over the first few hours. Once they are completed the battery life will return to normal.
  7. bobbba macrumors regular

    Jul 7, 2008
    Battery calibration takes a while to settle in too.
  8. Soundflunky macrumors regular

    Apr 29, 2012
    I'm seeing longer life. Maybe a half an hour or longer. Haven't measured it.
  9. gmansmg thread starter macrumors newbie

    Oct 6, 2013
    new info

    Hello again and thanks for the replies! I have performed another clean install sunday afternoon. Installed all the apps (the same ones i used on ML) and updated everything. Then i left the laptop plugged for a few hours, to check the reindexing issues.
    But then again, i still have lower battery life calculated by OS X Mavericks. I will do a full battery cycle today and see if that helps. I am not a heavy user on my MBA, the e-mail is not always open, i mostly use it for browsing.
    Streaming movies online on 10.9 was more of a battery drainer than on 10.8. I will keep testing this issue and perhaps when the OS will be launched officially, things will look brighter.
    Now i have 96% on the battery and it shows 10:41 hrs remaining. I have 9gag, Facebook and 2 other websites open + writing this post, and it doesn't feel right. At 96 percent i had 11-12hrs on 10.8.
    I was expecting at least a 10-20% increase in battery life due to the new features of os x mavericks.
    Have a great day everyone!
  10. bp1000 macrumors 65816

    Jul 7, 2011
    Did you actually get 11-12 hours real usage?

    Perhaps mavericks estimates are more realistic?
  11. gmansmg thread starter macrumors newbie

    Oct 6, 2013
    Yes, the mba 2013 battery life is insane. I am starting to believe that the estimates shown by mavericks aren't quite as accurate until a battery calibration. I mean i have fully charged the laptop yesterday evening (20 hrs ago) and never plugged it in since.
    I started using it 11 hours ago, in the morning. At first it showed 7-8 hours left, but i have used it all day, not heavy load, that i do on my work laptop, but browsing mostly, updates, some streaming, apps installing/uninstalling. and after about 7-9 hours of usage, i am (shockingly) at 56% (with 7 hrs remaining).
    So i am beginning to think that even though the estimate might not be very accurate, the battery life is indeed improving with 10.9.
    Wish there were an application that would monitor battery life precisely. I mean from plug out to plug in.

    Have a nice evening!
  12. Dorv macrumors regular

    Feb 11, 2008
  13. iLog.Genius macrumors 601


    Feb 24, 2009
    Toronto, Ontario
    +1. I got 4.5 hours, approx. a 30 minute improvement over Mountain Lion.
  14. NT1440 macrumors G5


    May 18, 2008
    I've got a failing battery (cheaper out like an idiot) and Mavericks has gotten me roughly another 45 minutes of battery life.
  15. 3lite macrumors 6502a


    Nov 7, 2011
    Will we see this drastic increase in the new rMBP?
  16. bwat47 macrumors regular

    Oct 1, 2013
    Battery life seems pretty similar here with a has well mba 13 inch. I was already getting a good 12 hrs in ML though.

    MV is much more responsive than ML though.
  17. Mac.User macrumors 6502

    Aug 25, 2013
    On my Retina the battery life went up almost 90min on the first few DP's then around 3 or 4 it went back down to what it was in 10.8
  18. vanc macrumors 6502

    Nov 21, 2007
    Same thing here. No big difference compared with ML. Just upgraded this morning and left plugged for the afternoon. Right now, battery is still 100% and showing 6:26 remaining.

    Worse, memory usage was higher than ML. With only Chrome, Mail, iBook running, Swap is already in use. Kernel task uses more 700M.
  19. bwat47 macrumors regular

    Oct 1, 2013
    I can't get it to use swap opening pretty much every app on my system, that sounds abnormal. For me battery life has been similar is not slightly better than ML (it was already very good in ML on my air). Memory usage has been much better, especially safari. My system often used swap in ML (4gb ram), but on Mavericks I never see it touch swap, the memory management as a whole seems hugely improved and my system always stays responsive.

    http://i.imgur.com/9WQRv9a.png (memory usage with tons of apps open on my machine, just under 4 gigs used, minimal memory compression activated, no swap)

    I've been using my air for like 5 hours already on battery today, and currently at 65% battery estimated 9:30 left.
  20. imac9556 macrumors 6502a

    Jul 12, 2004
    Upgraded to 10.9 GM on my 2013 Macbook Air 13". I think the computer has to recalibrate the battery. Since I upgraded, I did a full charge last night and today let it run to empty. So far, still going strong. The entire day it kept on bouncing remaining battery life from 4 hours to 12 hours. So far, I still have 11% left and here is my screen shot on activity monitor:

    Attached Files:

  21. bwat47 macrumors regular

    Oct 1, 2013
    Here's mine:

    Attached Files:

  22. gmansmg thread starter macrumors newbie

    Oct 6, 2013

    Hy again! I have just plugged the mba 2013 in after 30 hours (13-15 of usage) and i was at 20% with 2:30 hrs remaining.
    Hopefully this will recalibrate the battery and the indicators will be right.
    Flash seems to be using a great deal of battery, streaming and vpn too. We still have to wait for all the applications to be updated for 10.9, and perhaps then things will be even better.
    Only issue i had with 10.9 was with safari, which froze on some pages (not random, but on a few sites i usually visit)
    Fingers crossed mavericks will live up to our expectations.
  23. MuGeN PoWeR macrumors 68030

    MuGeN PoWeR

    Jun 29, 2011
  24. gmansmg thread starter macrumors newbie

    Oct 6, 2013
    Sadly, i don't get any graph. I monitored it myself (why there aren't any apps that can record all the battery statistics, including per-app consumption percentages, it's beyond my knowledge).
  25. MuGeN PoWeR macrumors 68030

    MuGeN PoWeR

    Jun 29, 2011
    okie. but a user posted the graph. and coconut battery just gives the health and battery timings. and no stats.

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