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  • dsecrist Level 1 Level 1 (0 points)

    Everyone seems to be trusting the battery life calculator here.  Has anyone simply run their battery down in real time, to see if it's accurate?

  • Csound1 Level 8 Level 8 (40,625 points)

    dsecrist wrote:

     

    Everyone seems to be trusting the battery life calculator here.  Has anyone simply run their battery down in real time, to see if it's accurate?

    It's an estimate, it changes all the time (dependent on load) if you are using it to ***** the actual battery life, good luck with that.

  • richsadams Level 1 Level 1 (70 points)

    DaFisch4711 wrote:

     

    It looks like I found a solution for my mid2012 MBP. Upgrading to 10.8.2 didn't have any effects, but I found out that the bash process consumed ca. 10-15 CPU on my machine. Everytime That I quit this process, the battery life recovers significantly. I am now back to >6 hrs after killing that god **** process after every restart. What do you guys think of it? Comments are highly appreciated.

     

    Each time you log into your computer a script, bash (a shell process), will look for initialization files that are used to customize your environment.  The same script is used to initialize processes for other applications...print, sending and/or receiving information from external sources, etc.

     

    That said, although killing a bash process remedies your MacBook's battery drain, and it may be linked to upgrading to Mountain Lion, it's not likely that ML is the root problem like others are seeing here.  In other words, what you're experiencing is not that unusual.  It was around long before ML was ever issued.  That's why you didn't see an improvement with 10.8.2.  If you search this forum you'll find a number of questions about the bash process.

     

    My WAG is a process has started but for some reason (likely corrupt files) gets "stuck" at some point.  If that's the case it can cause a small or substantial use of CPU power...and accordingly battery drain.  Even though it's showing 10 - 15% CPU in Activity Monitor it can be consuming 100% on and off.

     

    If bash is continually running you can determine the "User" in Activity Monitor (All processes).  That gives you the basic info...if it's you (often your preferences), a root script or an app.  For more info you can select it, click the Inspect button > Open Files and Ports and get some clue about what initiated the process and what it might be doing.

     

    If you want to troubleshoot it yourself, try rebooting in safe mode.  If it doesn't run it's most likely associated with one of your applications.  If the process runs and stops your answer is most likely that a user file or files are corrupted.  Without going into too much detail there are things you can do to correct it.  Sometimes a simple Permissions Repair (more here as well) will do it, other times it takes more work like uninstalling an app, etc.  It's often a process of elimination.

     

    You could learn more about it and try to resolve it yourself.  Or you could take your MacBook to the Apple store or authorized repair facility and have them sort it out.  Or you could perform a clean install.  If you do a clean install, you'd want to manually restore your applications (re-download them) and files rather than using the Time Machine restore process.  That will avoid bringing back any issues from your "old system".

     

    Hope that helps!  Others here may have some additional, more specfic advice as well.

  • rumo_von_zamonien Level 1 Level 1 (0 points)

    the battery lasts the 2 hrs estimate the battery calculator shows when running down and looking after the clock.

  • Csound1 Level 8 Level 8 (40,625 points)

    rumo_von_zamonien wrote:

     

    the battery lasts the 2 hrs estimate the battery calculator shows when running down and looking after the clock.

    And how long does it actually last, not the estimate?

  • iinviktus Level 1 Level 1 (0 points)

    Maybe we should turn to the media for help to bring this to Apple's and their potential customers' attention.

     

    http://theverge.com

    http://engadget.com

    http://bgr.com

    http://gizmodo.com

  • Beisarius Level 1 Level 1 (0 points)

    Hey Scratch,

     

    Indeed, I am quite sure that not all Macbook received a firmware update. Some older models did not. Equally, had Apple deployed firmware update for all units, no doubt these would have been archived right away by model, on the SMC firmware page.

     

    It means that on older macbooks ML does not run the same way as on newer architectures. greghei recently asked how woudl I know what. After 6-7 recent installs or SL L ML, I noticed a higher consumption on older units.

  • salty777 Level 3 Level 3 (540 points)

    Here's a real-life anecdote.....!

     

    I unplugged mine at about 0600 this morning to catch a flight. 100% charge, left on standby. Used it for about 2 hours on the plane (a couple of games, bit of word processing). Used it when I got home for about an hour (catching up on email, surfing)... it's now 16 hours since it's been plugged in, and used for about three (maybe a little more) and it's showing 64%, 4h29m!!

     

    When I posted here first, my real life use was about 3.5 hours before it shut down.

     

    I have to say the 10.8.2 looks very promising...... it's doing well in "real world" situations.

  • richsadams Level 1 Level 1 (70 points)

    iinviktus wrote:

     

    Maybe we should turn to the media for help to bring this to Apple's and their potential customers' attention.

     

    I'm all for sending bug reports and drawing attention where it's needed, but FWIW Apple is painfully aware of this issue.  They proactively reached out to a number of us here early on, had us install diagnostics, etc.

     

    The issue has been resolved for many folks, not for others.  They've continued to be in touch and I have no reason to believe that they aren't going to be able to resolve things...not soon enough for those still having issues, but hopefully soon.

     

    BTW, most (if not all) the online publications that you've linked have posted articles about this issue already.

  • richsadams Level 1 Level 1 (70 points)

    ScratchSF wrote:

     

    richsadams, I experienced the problem early one with 10.8.0 and it improved with 10.8.1.  With 10.8.2 it fell between 10.8.0 and 10.8.1 in terms of battery life and behavior; until I re-downloaded it using the Combo version and performed yet another SMC.  Now all seems about where it was previously with Lion, perhaps better (as I'm typing this message, my batter health is indicating between 6 and 7 hours remaining at 98%).

     

    I do not have PowerNap and did not receive a firmware update with ML.  So, while firmware may certainly be one of the many things that Apple needs to chase down, it isn't the only thing at play here.

     

    Sweet...glad things are getting back to normal for now at least.

  • richsadams Level 1 Level 1 (70 points)

    That is curious.  My Late 2010 MBA is older than Scratch's Mid 2011 MBP, yet it had an SMC update and has the Power Nap feature.  Wonder why the difference?  SSD Vs HDD?  ???

  • armanditoh Level 1 Level 1 (0 points)

    Hello there. I am having serious trouble with my macbook pro early 2012‘s battery, using Mountain Lion 10.8.2.

     

    First of all, battery dropped a whole **** ton when I upgraded. Before, it was around 7 to 8 hours with full charge. Now, at the most, it‘s 2 and a half hours (and it gets really really hot, even with air conditioning in the room).

     

    But that‘s not the biggest of my problems.

    I look up at the battery percentage when I‘ve had it plugged in all day, and hey, look at that, it‘s at 97% and it says “Fully Charged.“

    I unplug it, and then plug it back in, and it still says Fully charged.

    I go online to get some feedback on it, and I find this discussion. So, I unplug it to see how much battery time remaining it says and make a post about it and bam, as soon as I unplug it, the percentage goes down to 96. I plug it back in and there it is again.
    “Fully Charged“. And it‘s not charging at all.

     

    I‘m pretty scared here...

    What can I do?

  • sandip.sah Level 1 Level 1 (0 points)

    Unplug the charger and let the battery drain below 90%.

    After that plug the charger. Then It will charge the battery to 100%.

    I experienced the same issue in my MacBook Pro 13" i7 mid 2012 model (ML).

  • richsadams Level 1 Level 1 (70 points)

    armanditoh wrote:

     

    Hello there. I am having serious trouble with my macbook pro early 2012‘s battery, using Mountain Lion 10.8.2.

     

    First of all, battery dropped a whole **** ton when I upgraded. Before, it was around 7 to 8 hours with full charge. Now, at the most, it‘s 2 and a half hours (and it gets really really hot, even with air conditioning in the room).

     

    But that‘s not the biggest of my problems.

    I look up at the battery percentage when I‘ve had it plugged in all day, and hey, look at that, it‘s at 97% and it says “Fully Charged.“

    I unplug it, and then plug it back in, and it still says Fully charged.

    I go online to get some feedback on it, and I find this discussion. So, I unplug it to see how much battery time remaining it says and make a post about it and bam, as soon as I unplug it, the percentage goes down to 96. I plug it back in and there it is again.
    “Fully Charged“. And it‘s not charging at all.

     

    I‘m pretty scared here...

    What can I do?

     

    First, don't be scared...with respect to the plugged in and unpluged readings there's not much unusual going on...other than you're watching it.   

     

    Read up on maintaining your MacBook's battery here (and be sure you're following all of the recommendations):

     

    http://www.apple.com/batteries/notebooks.html

     

    Then try resetting the SMC:

     

    http://support.apple.com/kb/HT3964?viewlocale=en_US&locale=en_US

     

    If you don't see an improvement in your battery life, report back with some additonal details.  In the meantime you can install a couple of these battery monitors (all free) to keep an eye on things:

     

    Coconut Battery

     

    Battery Health

     

    MiniBatteryLogger

  • richsadams Level 1 Level 1 (70 points)

    sandip.sah wrote:

     

    Unplug the charger and let the battery drain below 90%.

    After that plug the charger. Then It will charge the battery to 100%.

    I experienced the same issue in my MacBook Pro 13" i7 mid 2012 model (ML).

     

    Good advice.  And once the MagSafe connector LED turns green...leave it plugged in for another two hours.  Then disconnect it and see how it looks.