5 Replies Latest reply: Aug 3, 2012 2:50 PM by Saxapahaw
enehcuo Level 1 (0 points)

I'm using my Macbook Pro Retina (2.7 GHz i7 | 16GB DDR3 | 768 SSD) since the first week of july. It just had 7 battery cycles, condition is normal.


Since yesterday I found out my battery percentage dropped from somewhere between 70-80% to 35% directly after I opened up my macbook when I came home (15 minute ride). (I didn't actually see it drop)


I tried the tricks found on the internet such as:


  • Open Terminal
  • cd ~/Library/Preferences/
    rm com.apple.desktop.plist
    killall Dock


Things I found out:


  1. The com.apple.desktop.plist file was missing. So I 'manually' created it by changing the wallpaper, nonsense off course.
  2. This didn't help off course because a damaged file could have been the problem, but if there isn't any - it can't be the problem.
  3. The killall dock cmd didn't do what it should do - because it said "No matching processes belonging to you were found".
  4. I tried to reset SMC, no fix.
  5. I tried to restart with cmd + option + p + r, no fix.
  6. First week(s) i didn't notice any battery drops or any problem with the battery.


I called the local (Netherlands) Apple support services. I know some about computers and nowdays technology so it's annoying talking to someone which is trying to help me using manuals or so. The guy 3 times called his (smarter on mac) colleague to help him and sort of concluded that it maybe are some App(s) running in the back killing the CPU. I think that's not the problem. Still I monitored it and indeed, it isn't the problem.


The thing I do noticed is that my battery charges up way too fast:


  • 8% - 2:01 remaining (real time: 8:15 AM)
  • 9% - 1:32 remaining (real time: 8:17 AM)
  • 23% - 1:57 remaining (real time: 8:30 AM)
  • 27% - 1:18 remaining (real time: 8:34 AM)
  • 52% - 0:50 remaining (real time: 9:00 AM)


This is while using only Safari.


I can't imagine that my battery is broken already. Especially since I have used it just for two weeks and everything was fine in the beginning.


Can someone please help me? I rather don't go back to the Apple Store and wait for them to fix it. Especially after my last 3 expierences with them not able to fix my two first generation macbook air's. When I took a try I both fixed them, with just reinstalling the OS.


Thanks in advance!

MacBook Pro with Retina display, Mac OS X (10.7.4), 2.7 GHz i7 | 16GB DDR3 | 768 SSD
  • enehcuo Level 1 (0 points)

    I've used my macbook today after it was fully charged at 10:30 AM. It's at 6% now and has about 30 minutes left. This means i used my macbook for 6,5 hours constantly. Using just Safari, Mail, Excel and MSN. So that's basically the 7 hours of non-stop internet which Apple communicates minus 30 minutes using Excel through the day. Which is totally acceptable.


    So I don't know what happened with my Macbook yesterday evening and today's morning but it seems it's working properly (again).


    Anyone else expierencing the same kind of 'problems'?

  • ryan1604 Level 1 (0 points)

    Theres another thread which ive posted on as Ive had significant problems with the battery the last two days but thats after upgrading to Mountain Lion , I think....Cant be positive.


    Heres the thread seems youre not the only one but more people seem to be having it AFTER upgrading to ML.



  • Shootist007 Level 6 (16,660 points)

    Reset the SMC and the PRAM.

  • ryan1604 Level 1 (0 points)

    okay ill try that. cheers for replying.

  • Saxapahaw Level 1 (0 points)

    For what it's worth, I was freaking out over having similar battery life issues - and using Activity Monitor identified a Citrix background process responsible for 100% CPU time.  AGAdminService was not a system Idle process!


    Sanity has been restored.