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Battery life dropped considerably on Mountain Lion.

520282 Views 3,396 Replies Latest reply: Oct 28, 2013 5:38 AM by CT RSS Branched to a new discussion.
  • Chris-UK Level 1 Level 1 (0 points)
    Currently Being Moderated
    Aug 23, 2012 10:15 AM (in response to Chris-UK)

    New problem - my battery wont charge above 97% - used to be 100 or 99% before in 10.8.0 - now fully charged is 97% - what the heck is going on Apple?

  • syrius777 Level 1 Level 1 (15 points)

    I tried it and it had almost the same battery life

  • corsa Level 1 Level 1 (20 points)

    I'm getting same battery life under 10.8.1 as 10.8, but that is a good thing for me, since I'm one of the lucky ones where ML battery life is great (better than Lion even.)

     

    I'm getting almost 6 hours per charge on my mid-2010 MacBook Pro with 1096 cycles on this battery.

  • Ulf1103 Calculating status...
    Currently Being Moderated
    Aug 23, 2012 10:22 AM (in response to Chris-UK)

    I'll explain that to you Chris-U.

     

    Apple uses Li-ion batteries

    which when charged to 95% live longer than if you would have charged them (every time) to 100%

    The indicator used to show 100% when it was only 95%.

     

    2ndly:

    it takes the exact same time to charge a battery from 0% to 80% as to charge it from 80% to 100%

     

    in those last 20% every 1% higher takes longer to charge,

    it might be possible, you just didn't wait long enough

  • Csound1 Level 7 Level 7 (32,255 points)
    Currently Being Moderated
    Aug 23, 2012 11:17 AM (in response to Chris-UK)

    Chris-UK wrote:

     

    Csound1 & kiwituatara

     

    Just look what happened to Toyota!

    Enlighten me, what has happened to Toyota?

  • Chris-UK Level 1 Level 1 (0 points)
    Currently Being Moderated
    Aug 23, 2012 11:22 AM (in response to Csound1)

    Lots of brand damage due to massive recall of faulty vehicals that they ignored and denied for a long time - just google toyota brand damage and many articles like this http://money.cnn.com/2010/03/30/news/companies/toyota_brand_damage/index.htm - so hope apple iOS does not go the same way - taken Toyota a good couple of years to recover

  • Jessydog Calculating status...
    Currently Being Moderated
    Aug 23, 2012 11:27 AM (in response to Csound1)

    UGH---I have sat here patiently with my new MacBook AIr 13 which I ordered the day they came out waiting for a fix. My battery life performance under Lion was smoking hot---meaning good. Ever since ML, it dropped in half and I just did the update and booted twice. Started at 100% battery and here I am 10-15 mins later and it says I only have 2:49 remaining-----shoot me please. This used to be an amazing machine, I am now going to have to figure out how to do a clean install with all the associated BS of passwords and codes, etc to get back to my 7 hours unless someone has a fix for this nonesense. How could they not have known there was and still is a HUGE problem.

     

    As an Apple shareholder and one who has a houseold full of laptops and iMacs and iPads and iPhones, I will not be updating any software EVER again until it has been out for months.

     

    Does anyone have any proven fixes?

     

    Thanks !

  • Csound1 Level 7 Level 7 (32,255 points)
    Currently Being Moderated
    Aug 23, 2012 11:29 AM (in response to Chris-UK)

    Chris-UK wrote:

     

    Lots of brand damage due to massive recall of faulty vehicals that they ignored and denied for a long time - just google toyota brand damage and many articles like this http://money.cnn.com/2010/03/30/news/companies/toyota_brand_damage/index.htm - so hope apple iOS does not go the same way - taken Toyota a good couple of years to recover

     

    Toyota was the largest seller of cars in the USA this year, 2nd largest last year (Nukes/Earthquakes and Tsunami's slowed them down a little) and was the largest the year before. Try as I might I see no evidence of 'Brand Damage' and don't expect Apple will either.

     

    CNN is just another purveyer of saleable news crap

  • Chris-UK Level 1 Level 1 (0 points)
    Currently Being Moderated
    Aug 23, 2012 11:38 AM (in response to Csound1)

    They fell 5% here in the UK but like you say a large enough company not to be impacted, nevertheless brand damage is brand damage and I personally had a Toyota and because of reliability issues I left them after numerous vehicals with them. I wish BMW would make an OS :O)

  • Ikaika777 Calculating status...
    Currently Being Moderated
    Aug 23, 2012 11:39 AM (in response to corsa)

    Folks, the 10.8.1 update was not about a fix for the batterry. You can clearly see that it said( or didn't say ) that before you downloaded it. It will come in 10.8.2. I'm sure.

  • Jimmy Kats Level 1 Level 1 (10 points)
    Currently Being Moderated
    Aug 23, 2012 12:06 PM (in response to Chris-UK)

    if it gets stuck on that again... let your macbook drain all the way down to where the message pops up and says "your now running on reserve power"... reset your SMC, then charge your macbook all the way up to 100%... hope this helps

  • Jimmy Kats Level 1 Level 1 (10 points)
    Currently Being Moderated
    Aug 23, 2012 12:07 PM (in response to Ikaika777)

    in some threads it's a stealth update, where it isn't actually listed?! have you downloaded it and no improvement?

  • Jimmy Kats Level 1 Level 1 (10 points)
    Currently Being Moderated
    Aug 23, 2012 12:09 PM (in response to Jessydog)

    you are amongest many fustrated mac users believe me!!! Look at this thread, pretty soon it will reach 100 pages! They are many dedicated customers out there like yourself, and Apple "can't" replicate the problem... a very biased view... be patient and hopefully these engineers fix the battery life issue.. I have downgraded to Lion, because Mountain Lion has been nothing but a worthless upgrade

  • dodsworthchris Calculating status...

    Well well, here we are once again .

     

    I knew well before update was installed that it was going to do sod all to improve the battery and heat issues.

    Reading the fix list you could see that and when the update downloaded at 8mb or so, I burst out laughing. More in despair I hasten to add but also at the absurdity that anyone thought an 8MB update would do anything but add a '.1' to the end of the OS. Apple, you have screwed up big time on this one.

     

    Apart from having a household of Apple products and be using them since before the classic (shows my age) and as a Director of an Apple Reseller, there is no-one more disappointed at this half arsed update than me.

     

    I know the 10.8.2 is being scheduled to be available with the slew of new products on Sept 12 and launch date and 'may' bring us respite but dont hold your breath.

  • RHBC Calculating status...

    Just want to let the group know that after monitoring my MBA behaviour for the last few days after some attempts to fix things:

    1. Prior to upgrade ML, my computer was lasting 8+ hours per charge (at low brightness ~ 30%) with SL.

    2. Since "upgrade", my computer was heating up, fan constantly running, and last <2hours per charge.

    3. Switching off Dropbox, iCloud, and microsoft office update didn't help.

    4. Switching off Citrix stopped the heating up and constant fan issue, and battery went back up to almost 6 hrs for a day.

    5. Switching on iCloud caused my computer to heat up and fan turn on again, and last <2 hours again.

    6. After turing iCloud off and reset SMC, the fan and heating problem stopped again.

     

    However, monitoring further, my battery never returned to what it used to be. Now running just a few apps WORD/XL, it still drained 10% in just 20 min, and it's lasting just 4hrs per charge.

     

    I tried turning Dropbox on and off/with new and old folders/file transfer etc, but have not noticed any particular prolonged CPU activation other than some transient increase. In any case, my battery is still draining in a cool quiet environment with low brightness (albeit not as bad as my hot noisy problem last week), and now I see what most others are complaining about now. (my 80% battery reduction is now fixed, but my 50% battery reduction has not been fixed)

     

    Screen Shot 2012-08-23 at 11.49.55 AM.png

     

    I'll call my Macbook protection plan and see what they have to say.

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