Battery life dramatically improved with 10.7.1

Discussion in 'MacBook Air' started by DrNelly, Aug 17, 2011.

  1. DrNelly, Aug 17, 2011
    Last edited: Aug 17, 2011

    DrNelly macrumors member

    Jun 13, 2008
    Hi folks,

    after updating to 10.7.1, the battery life of my MBA 11 i7/256GB has improved almost 15%. From 235 minutes (browsing with safari and no flash installed, email, and coding) I am now getting between 270-280 minutes consistently. I have gone through 2 and a half cycles since yesterday and both full cycles show the improvement. I also noticed a small temperature decrease under the described conditions.

    EDIT: My screen brightness is set to 4 bars and bluetooth is off.

    Is anyone else experiencing better battery life after the update? If so, please post your regular usage times.

    It seems 10.7.1 has been a more substantial update than I thought.

  2. macfly4 macrumors member


    Apr 15, 2011
  3. kilonet macrumors member

    Jul 21, 2011
  4. Nioxic macrumors regular

    Aug 13, 2011
    an update that was released today

    i bought a mac today, which the store had delivered today as well. It had the update when i checked in the info

    also it says somewhere i have to OK downloading updates but i didn't.. so don't know if it came installed with the update, or just simply downloaded this (sorta important?) update without asking me
  5. brand macrumors 601


    Oct 3, 2006
    10.7.1 was actually released yesterday.
  6. macmba macrumors member

    Aug 10, 2011
    I think the best way to test battery life is to have exactly the same things happening on different MBAs. For example, do ONLY web browsing with everything else closed, at a certain brightness level, and excluding videos/youtube, otherwise there are way too many factors to be considered. Bluetooth mice, Wifi, speakers on/off, VMware, etc etc etc
  7. accessoriesguy macrumors 6502a

    Jul 8, 2011
    That's great to know!
    You know its done good when you notice it.

    Some people say the OS feels overall a lot smoother, they probably fixed some of the drivers/errors so the computer is running more efficient now, longer battery life is always good! :D
  8. alecgold macrumors 65816


    Oct 11, 2007
    its hard to tell how long the battery actually lasts from this info, it is just a prediction that takes the strain you gave it and the current use into it's little calculation.
    And although it is rather nice and somewhat accurate, I'm not sure if you can state on that info alone if the 10.7.1 update did improve battery life by 15%.
  9. Mike07335i macrumors member

    Jan 10, 2009
    Well I am also noticing a battery improvement since 10.7.1 came out. Obviously have to test more but seems like it added about an hour of usage. I have been working on it as usual this morning and its definitely slower in dropping percentages.

  10. theosib macrumors member

    Aug 30, 2009
    Not as good as Snow Leopard

    With Snow Leopard, I used to get on the order of 6 hours of battery life. With 10.7.0, it was about 3 hours. With 10.7.1, it's more like 4.5 hours.
  11. lcseds macrumors 6502a

    Jun 20, 2006
    NC, USA
    Reminds me of the AT&T signal strength issue with the iPhone. A new update came out and *surprise!* the signal strength went up. Not to say they didn't work a little with power management with this release, but just don't look at the little battery display on the top bar for an increase. One needs to use it as they normally do and average any improvement.
  12. bp1000 macrumors 65816

    Jul 7, 2011
    Funny you mention this

    On a full charge, just unplugged and idle, once settled it used to read around 8 hours with 10% brightness, keyboard BL and BT off.

    Now it was consistently sitting at 10:30.

    I don't normally notice as it's normally plugged in all the time. Nice little boost if true.
  13. theosib macrumors member

    Aug 30, 2009
    Well, I'm not sure if it makes any difference, but I'm getting my battery life projection from iStat, not Apple's battery menu. Maybe it calculates its own projection, or it just reads the same one that Apple's menu item reports. Dunno.

    With 10.7.0, I noticed that SystemUIServer was consistently using 4.4% CPU, at idle. Now, it's usually under 2%, which is an improvement. On the other hand, Safari's WebProcess uses CPU time for no reason (I've got no Flash and no animated images).

    Some people complained that the on-die GPU was never being used; I downloaded a program that let me control which GPU was being used, but it didn't make any difference. However, they reported that it did help for them. This may vary between Mac models. I've got a 2011 17" MBP.

Share This Page