Skip navigation

Battery life dropped considerably on Mountain Lion.

520759 Views 3,396 Replies Latest reply: Oct 28, 2013 5:38 AM by CT RSS Branched to a new discussion.
  • jessatd75 Calculating status...

    I have yet to try the complete from scratch install as gpaulo suggested. I want to know if this is more of a unilateral fix then many of the others before I go through in PITA and probably most of the night process (at least 6 hours, this intall the OS)of wiping and reinstalling(at least 6 hours, this includes downloading and install the OS) everything on my MBA and reinstalling everything. Has anyone else had any luck with it?

  • barshnik Level 1 Level 1 (85 points)

    I'm confused now - I was an early adapter, and one who was contacted  by Apple as a result of a post on this thread regarding poor battery life after changing to ML.  I did state that battery life seemed to be getting better a few days after ML install. 

     

    Well, it has been a few weeks now, and battery life is pretty **** good.  With screen brightness at about 1/3, I've been surfing / emailing for a little over an hour since unplugging.  It has dropped from 100% to 91%, and is showing 8:55 remaining.

     

    For the **** of it, I'm going to leave it unplugged today, 'sleep' when I'm not using it, and update a sticky note showing how much time I'm actually on it until the battery quits.  I know I can't possibly get the time it is indicating.

     

    New (2012) 5 week old MBP, non retina, 15" high res antiglare, 16 gb of OWC ram, and original 500 gb HD replaced with a 256 gb Samsung 830 SSD.

     

    John F

  • rwodaski Calculating status...
    Currently Being Moderated
    Aug 22, 2012 12:12 PM (in response to barshnik)

    The same is true for me. I mentioned my problem in this thread. I was contacted by an Apple techie. In the meantime, I had identified the process that was draining my battery and causing the heating. (It was only using 9% CPU, so it doesn't have to be some huge process hog to drain the battery; it just needs to be something persistent. This morning, starting at 100%, I surfed and emailed at about 25% brightness, and used up just a few percent of the battery in nearly an hour. Predicted lifetime was 8.5 hours after that.

     

    Before I found the process that was the problem (a script that handles Send to Kindle functionality), I was getting just a few hours no matter how hard I cut stuff back.

     

    I would expect, from the volumne of reports, that there may be other scripts and apps out there that do the same thing, maybe because of a change in Mountain Lion that prevents them from running properly.

     

    But for me, once I identified the process that was draining the battery and removed it, all has been spectacular. My advice to those still waiting is that it will be worth the wait for the fix.

  • richsadams Level 1 Level 1 (70 points)

    Based on this...

     

    http://9to5mac.com/2012/08/22/apple-preparing-to-seed-os-x-mountain-lion-10-8-2- to-developers/

     

    I'd expect 10.8.1 to be available any time now...fingers crossed.

  • CPT-Federal Calculating status...

    Quick question for those using iStat - I've only just noticed that the percentage reading in iStat is different to the one on the top right corner of my screen. That currently reads as 93% with 4.30h remaining (horrible, I know) and iStat reports that my percentage is actually 88% with pretty much the same time remaining.

     

    Has anyone else noticed this?

     

    I've got a rMBP, have been contacted by Apple after my initial post in this board and helped them collect information. iStat reports my battery is 100% healthy. After my original post I have tried not to use the rMBP until a resolution is pushed out, as I don't want to destroy my battery with endless cycles that could have been avoided.

     

    I have since called Applecare personally, but the tech (as with everyone else's story here) had no idea of this issue, despite the existence of this thread, and the fact that the Applecare rep who called me from CA admitted that there was an issue and that they were looking into it. You'd think that Applecare would talk to each other, but clearly that's not the case.

  • richsadams Level 1 Level 1 (70 points)

    CPT-Federal wrote:

     

    Quick question for those using iStat - I've only just noticed that the percentage reading in iStat is different to the one on the top right corner of my screen. That currently reads as 93% with 4.30h remaining (horrible, I know) and iStat reports that my percentage is actually 88% with pretty much the same time remaining.

     

    Has anyone else noticed this?

     

    Interesting.  The battery readings between my MacBook Air's and iStat Pro have always matched...

     

    Screen Shot 2012-08-22 at 3.42.45 PM.pngScreen Shot 2012-08-22 at 3.42.54 PM.png

     

    It is a bit odd, but I wouldn't read too much into the differences.

  • ArnieAZ Level 1 Level 1 (35 points)

    My 2012 MBA has always had that 5% difference. I use Coconut Battery.  Once you unplug at fully charged (via Coconut) it drops 5% before the Apple battery indicator starts dropping. It's been that way even with Lion.

    Also, when recharging the Apple indicator shows 100% but it continues charging even when the charging litght has turned green. Until Coconut says 100%. Checking 'About this Mac - Power' follows Coconut.  Well really Coconut is just reading the system values.

  • richsadams Level 1 Level 1 (70 points)
    Currently Being Moderated
    Aug 22, 2012 4:56 PM (in response to ArnieAZ)

    Also interesting.  Since this whole battery thing started I must have installed a half-dozen system/battery monitor programs.  They all seem agree with each other...

     

    Screen Shot 2012-08-22 at 4.45.09 PM.png

     

    Screen Shot 2012-08-22 at 4.45.22 PM.png

     

    Again, I wouldn't think a few percentage points difference would mean much though.

     

    What's worrisome is that 42% = 1:25 hours when it used to mean 3+ hours. 

  • kiwituatara Calculating status...
    Currently Being Moderated
    Aug 22, 2012 5:17 PM (in response to NadiaBH)

    NadiaBH - i hear  you - Apple is a billion dollar a year multinational, that sold a defective product called mountain lion.

     

    Imagine a car maker selling this years model of last years car, but with this years advertised as being 'the best driving experience yet'. Except this years model goes half the distance on the same tank of fuel.

     

    This is what ML is. Apple sold you their defective product after thousands of complaints - in this apple forum - and all over the internet.

     

    What Apple should have done but decided not to do is to put on the ML download page a warning - 'some ML users report battery problems, overheating, wifi, thunderbolt problems, Apple is working on a ML upgrade.' Then you have the choice to upgrade to the defective ML, or to wait until the fix is out.

     

    Shame on you Apple. You've put your billion dollar a year profit before customers like NadiaBH and me, and thousands of others.

  • Csound1 Level 7 Level 7 (32,330 points)

    kiwituatara wrote:

     

    NadiaBH - i hear  you - Apple is a billion dollar a year multinational, that sold a defective product called mountain lion.

     

    Imagine a car maker selling this years model of last years car, but with this years advertised as being 'the best driving experience yet'. Except this years model goes half the distance on the same tank of fuel.

    Yeah, maybe they should say "This great driving experience may suffer from an inability to stop" or This car may catch fire after you leave the showroom.

     

    Great idea, let's apply it to all, unless you just want to castigate Apple.

  • UXdavemx Calculating status...

    today is the 1 month birthday of this big issue for US.

     

    i ask....when, when apple will fix this problem

     

    happy birthday friends 

  • g8production Calculating status...
    Currently Being Moderated
    Aug 23, 2012 12:34 AM (in response to UXdavemx)

    I received another call by Apple. This time Apple has logged my battery during a normal use of Mountain Lion.

    So, after 2 hours and the battery charge at 20%, i have sent the logs to them.

    Now, again, my fingers will be crossed.

     

    Maybe the problem will be solved with the new release of Mountain Lion. Follow the image from the web

    http://i1-news.softpedia-static.com/images/news2/Exclusive-Developer-Confirms-OS-X-10-8-1-Resolves-Battery-Drainage-in-Mountain-Lion-2.png?1345485389

    Last but not least, after 2 days of "stop" without use the Mac, the battery percentage is fallen from 100% to 50%. D'oh.

    MacBook, OS X Mountain Lion
  • Chris-UK Calculating status...
    Currently Being Moderated
    Aug 23, 2012 12:34 AM (in response to UXdavemx)

    "today is the 1 month birthday of this big issue for US."

     

    Seems apt to have a birthday celibration as I can light some candles that may well outlast my battery :O)

  • Chris-UK Level 1 Level 1 (0 points)
    Currently Being Moderated
    Aug 23, 2012 12:37 AM (in response to Csound1)

    Csound1 & kiwituatara

     

    Just look what happened to Toyota! cars seem a very apt example :O)

     

    This has done the same brand damage to their OS - I for sure wont be in a rush to upgrade again.

  • ArnieAZ Level 1 Level 1 (35 points)

    10.8.1 was just released. Got it installed. Will see how it goes.

    I'm not really experiencing most of these problems though :-)

1 ... 83 84 85 86 87 ... 227 Previous Next

Actions

More Like This

  • Retrieving data ...

Bookmarked By (85)

Legend

  • This solved my question - 10 points
  • This helped me - 5 points
This site contains user submitted content, comments and opinions and is for informational purposes only. Apple disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site. All postings and use of the content on this site are subject to the Apple Support Communities Terms of Use.