1 93 94 95 96 97 Previous Next 3,396 Replies Latest reply: Oct 28, 2013 5:38 AM by CT Go to original post Branched to a new discussion.
  • 1,410. Re: Battery life dropped considerably on Mountain Lion.
    richsadams Level 1 Level 1 (70 points)

    bartlettpsj wrote:

     

    I just installed iStat Pro and found surprisingly that the Exhaust Fan (well it only has one fan) is running at 1996-2006 rpm all the time.

     

    Is this normal?  The machine is/has been 98-100% idle (in Act Mon and iStat) for the past hour doing nothing.

     

    Does the fan need to be on all the time.  I can hear nothing unless I actually put my ear on the case and can hear a faint whirring.

     

    Paul

     

    Paul,

     

    Yes fan(s) run all of the time on all Macs.  The default fan speed for my late 2010 MacBook Air is 1999 (completely silent).  You'd need to look up the stats for your model/processor, but it's likely very normal.

  • 1,411. Re: Battery life dropped considerably on Mountain Lion.
    btbowen Level 1 Level 1 (0 points)

    my MBP was plugged in all night, and powered off (...!). i unplugged it at some point this morning to do some work, plugged it back in for an hour, then took it to another room to print something. Total time unplugged <2hr. It told me it was working on reserve power suddenly! It even seems to be charging slower than it runs down! I agree with the guy who said he didn't spend $3k on a computer to have less than 4hrs of battery life. APPLE?

  • 1,412. Re: Battery life dropped considerably on Mountain Lion.
    krabuff Level 1 Level 1 (0 points)

    Installed the update 10.8.1 but nothing has changed! Macbook Air (13'',128gb,Mid 2011) still has only power for 3h ! I can't really use it for longer trips any more. The only thing that changed is, that recharging now takes waaaay to much time! Batterie is at 96% but it says it needs 20min? Thats impossible! That all really *****!! Apple please DO something! I feel a little left alone...

  • 1,413. Re: Battery life dropped considerably on Mountain Lion.
    btbowen Level 1 Level 1 (0 points)

    just tested it with a stopwatch, and my battery dropped 7% in 10mins! so... 140mins or-so of battery life??

  • 1,414. Re: Battery life dropped considerably on Mountain Lion.
    lucaspeng Level 1 Level 1 (0 points)

    I bought a macbook air 2012 a month ago. After upgraded to ML, I got 4 hours battery life and 30 hours standby time. However the macbook air had a faulty wifi antenna, so i returned it for a new one.

    I upgraded the new MBA from lion to 10.8.1. And the battery life turned out to be normal (7 hour web surfing). And stand by time seems normal.

    Maybe the awful battery life is a result of some hardware issues?

  • 1,415. Re: Battery life dropped considerably on Mountain Lion.
    Fiberluver Level 1 Level 1 (0 points)

    I decided to revert back to Lion.

     

    Last night I charged my late 2011 MBPro to 100% and shut it down.

     

    This morning, I started it & battery drained 2%.

     

    After 3 hours of usage - just browsing websites & reading forums - it drained to 37%.

     

    I'm charging it now & will b/up before reverting to Lion - I did not experience any battery probs. w/Lion at all.

     

    Question: how can I get a refund from Apple for ML???

  • 1,416. Re: Battery life dropped considerably on Mountain Lion.
    Skribilo22 Level 1 Level 1 (10 points)

    I have been a long time Apple user, and I have converted several family members and friends to Apple products, but I am really starting to get bummed out.  I bought the new rMBP about 6 weeks ago, and I already had to get one replacement because of some faulty piece of hardware.  The thing is that I had to go to the store three times before it was even switched out (they didn't have them in stock and thought that it could be fixed and so on...). Anyway, there are a lot of fantastic things about this machine, but the new computer that I was given came with ML already installed, and the battery life is really low.  I would estimate that I get anywhere from 1.5 to 2 hours on a full charge.  This product is advertised as having a 7 hour battery life!  I know I'm just preaching to the choir here, but I figure that more voices can't hurt.  I want to remain loyal to this company because they really do make some amazing, top-of-the-line products, but when their prices are so much higher, I expect a certain level of quality. If I have to go back to the store at any point for this issue, I am going to be really upset.  I really hope this is resolved soon so that I don't have to keep sitting near an outlet--what's the point of having a laptop if that's the case?  Please help us, Apple!

  • 1,417. Re: Battery life dropped considerably on Mountain Lion.
    Fiberluver Level 1 Level 1 (0 points)

    I agree with Skribilo22 last statement.

     

    I love Apple products and have been singing its praises to everyone I came in contact with.

     

    Yes, I love many of the features of ML but not the battery drain and apps that get stuck (don't want to close right away).

     

    Obviously this OS is buggy but why didn't all of the engineers and testers not notice this??? Curious.

     

    I don't want to hang out near an outlet either and is it wise to keep the laptop plugged up all the time?

  • 1,418. Re: Battery life dropped considerably on Mountain Lion.
    Beisarius Level 1 Level 1 (0 points)

    Refund: you call Apple, they will transfer you to a sr adviser, and they can do it for you with iTunes.

     

    Or call iTunes. Either way it works.

  • 1,419. Re: Battery life dropped considerably on Mountain Lion.
    Beisarius Level 1 Level 1 (0 points)

    Ok, so 1.5 2 hours rMBP?, that is very very low and would call that a lemon. Has a case been open with Apple? What have they said/done? Would like to hear that you called, they gave you a case number and working on it. It is immensely better than going at the store back and forth... this problem is well above genius bar. Conversly, if no call made to Apple, then even less data or weight to our arguments.

  • 1,420. Re: Battery life dropped considerably on Mountain Lion.
    tomcollingwood Level 1 Level 1 (0 points)

    Okay.  I am now getting between 5 and 7 hours with my rMBP (base model purchased 2 days ago so ML natively installed).  So Skribilo22 is having a lot of trouble that I am not (currently, fingers crossed...).  Does this prove anything in terms of proving that it is down to faulty units hence it is only happening on some and not others? Not taking into account here people running ML on older machines as that sounds like a very messy situation.  I am continuing to conduct tests but do not seem to have any obvious problems.  I have noticed that when running any apps that are native to Mountain Lion battery life seems quite a lot better than if running 3rd party apps.

     

    Sounds to me Skribilo22 as though you need to make use of that warrenty......can't see how such a vast difference can just be down to an OS bug with the same model???  Hope it works out!

     

    Easily the nicest laptop I have ever used but Apple are surely damaging the heritage they built here.  There is simply no point in purchasing their products if such occurances are happening.  I have also have a Samsung series 7 laptop (which I intened to sell if this one does not have battery problems) with a much faster i7 processor, the fastest mobile Nvidia graphics card that exists, 1.5 TB of hardrive etc all for a lot less money..........Apple you need to sort this quick.

  • 1,421. Re: Battery life dropped considerably on Mountain Lion.
    Beisarius Level 1 Level 1 (0 points)

    For the audience not familiar with electronics:

     

    - If a device does not work properly, drains too fast, and is not plugged to xyz peripherals that would drain it (monitors, mice, external HDD), it is automatically hardware. Battery is physically drained too fast. Ampers lost at a fast rate. Whether the OS or mobo as culprit, matters less than the effect: the hardware does not work as specified.

     

    leaving battery plugged or no: UNPLUG unless out of warranty. these batteries are meant to be cycled, and used unplugged at least once within 30-48 hrs of successive mag power.. Now if out of warranty, means your machine is old enough, GO BACK TO LION. Or you will loose this battery and have to dish $ to replace it unless Apple kindly admist to the issue and does it for free.

     

    If in warranty, or new machine, unplug it. you will only be eligible for a repair, replaceement, new logicboard IF YOU CAN DOCUMENT A PROBLEM. And 80% health in 200 cycles automaticaly does (think it is 80%/1000 according to Apple's site).

     

    So my BTO MBA I do not worry about ML killing it. I have 1 yr optional 3 and they will replace it (as been told by phone) if this problem surfaces on it. I already have a case # even though it seems to work (due to that 1% health drop on its first cycle)

     

    So better to use and get your machine replaced, than keeping it plugged and having no proof yours is indeed affected.. Time consuming making calls, but all calls I made were less time consuming that a full clean install.

     

    Again, if your machine is 2011, I strongly recommend full Lion clean install, do not import Apps or user account, just folders. Only way to salvage some life of your affected battery.

     

     

     

     

     

    Chris Mtl

  • 1,422. Re: Battery life dropped considerably on Mountain Lion.
    kiwituatara Level 1 Level 1 (0 points)

    hi, i wrote to apple sydney, complained that my payment for ML was actuated by fraud - it was not of merchantable quality - the fraud being, corporately speaking, knowing these posts, but not warning newby ML's of ths issues.

     

    refund came though within days

     

    remember, if you are goin in to Apple anywhere, take your notebook, you get

     

    1. refund of ML

    2. help about getting u machine working

    3. when does apple think its going to get its act together

    4. vitally - don't take no for an answer - Apple made hudreds of millions on thid product

    5.

  • 1,423. Re: Battery life dropped considerably on Mountain Lion.
    Wordless Level 1 Level 1 (0 points)

    My macbook pro 15" mid 2011 dropped about 30% concerning period of use whith a full charge, this improved only slightly after the 10.8.1 update.

    What even disturbs me more than the shorter usage period is the increased heat level resulting after upgrading to Mountain version. Even during a normal surfing session with no other programms running besides it is recognizable (before no heat could be felt at all).

    E.g. playing only 5 minutes of apple chess gets the bottom of the macbook really hot, which is purely unacceptable.

     

    So I count on Apple to review also 10.8.1 quickly and erase such 2 big disadvantages concerning shortened unplugged usage period and also increased and disturbing heat levels.

     

    For the time being I cannot recommend an upgrade to Mountain Lion to any 10.7 Lion user at all because of these important shortcomings.

     

    Apple please stop the heat and early time out ! ...and I'll be an Apple fan again.

  • 1,424. Re: Battery life dropped considerably on Mountain Lion.
    manueru Level 1 Level 1 (0 points)

    Hi all,

     

      i thought the problem is the notification center. I have a mbp midlle 2011 and with lion it worked perfectly with a battery life of about 7 hours, 6 hours of XCode use and Safari. Without wifi the battery lasts up to 9 hours. Once upgraded to ML the battery life dropped to 4 hours or less. I disabled the notificacion center and battery life is now as good as always.

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