Apple, Tech / Repairs

Get The Most Out Of Your Retina MacBook’s Battery Life With A Terminal Command

Did you buy the new MacBook Pro with Retina display, but don’t seem to get the promised seven hours of battery life? It’s not because you now have a beautiful Retina display that makes all your friends jealous; your issue could be due to a corrupt file created by Migration Assistant…

This little file was created by Migration Assistant and needs to be removed to improve your batteries performance. For some reason this corrupt file could be drastically decreasing the battery life of your new shiny MacBook Pro with Retina Display.

A user on Apple’s Support Communities forum figured it out:

I FINALLY FIGURED OUT THE ISSUE! Its a simple terminal command.  There is a corrupt file that Migration Assistant created and this will fix the issue. I am now getting 8+ hours of battery on my MBP Retina.

Check the current remaining time on your battery and then try this out…

In order to remove the file, follow these steps:

  1. Open Terminal (Applications > Utilities) and type: cd ~/Library/Preferences/
  2. Hit Return
  3. Now type:  rm  and hit return once more.
  4. Lastly, type:  killall Dock and hit enter.

Once these steps are completed, your MacBook’s desktop will refresh and possibly change the wallpaper back to Lion’s stock image. If this file was causing an issue, you should see a big boost in remaining battery life.

Let us know in the comments if this works for you.

Source: Apple Support Communities via Cult of Mac

Share this Story

Related Posts


  1. coe

    January 17, 2018 at 5:09 pm

    949987 469954Woh I enjoy your articles , saved to favorites ! . 643490


  2. GVK BIO news

    January 20, 2018 at 6:07 am

    74167 202530Housing a different movement in a genuine case or re-dialed model. 413605


  3. lisboa informática

    January 29, 2018 at 3:49 pm

    489329 541574I feel this web site has got really great indited written content material articles . 62195


  4. appliance repair Richmond Hill

    February 1, 2018 at 11:46 am

    990515 77049I saw two other comparable posts although yours was the most beneficial so a whole lot 73537


  5. reddit ads

    February 3, 2018 at 8:53 am

    922182 578614Outstanding post, I believe blog owners need to larn a good deal from this site its rattling user friendly . 62567


  6. CROs providing pharmacokinetic studies

    February 5, 2018 at 7:59 am

    444638 609919Hey! Fantastic post! Please do tell us when we can see a follow up! 78226


  7. arkan4ac


Leave a Reply

Your email address will not be published. Required fields are marked *

Join Our Mailing List

Email Format

Free iTunes Gift Cards!

Find us on Google Plus