Electrical/Buzz/Tingly Feel on Ungrounded MBP

Discussion in 'MacBook Pro' started by killawat, Nov 14, 2016.

  1. killawat macrumors 65816

    Joined:
    Sep 11, 2014
    #1
    Hey all, with the new MBPs coming without the grounded extension cord out of the box (c'mon apple seriously), you may feel a slight buzz/tingly/electrical feel on the case. This happens with other Mac laptops so its not exclusive to 2016 machines. Its not exactly a problem but it may make the machine uncomfortable to use (I hate it personally). The fix is to use a grounded cord rather than the two prong "duck head" included out of the box.

    http://www.apple.com/shop/product/MK122LL/A/power-adapter-extension-cable

    Description of Issue : https://discussions.apple.com/thread/2416273?tstart=0
    http://apple.stackexchange.com/ques...that-my-macbook-air-is-passing-me-electricity
     
  2. fs454 macrumors 65816

    Joined:
    Dec 7, 2007
    Location:
    Los Angeles / Boston
    #2
    I'm getting this, it's a really strange sensation. Good to know it's somewhat normal and just a side effect of them being cheap with the extension.
     
  3. SurfaceBookUser macrumors member

    Joined:
    Nov 13, 2016
    #3
    Is this just specific to the new models? I used my 2010 model almost exclusively without the power extension and never noticed anything like this.
     
  4. fokmik macrumors 68000

    Joined:
    Oct 28, 2016
    Location:
    USA
    #4
    this is specific to any aluminium device. Even the iphone from iphone 5 to 7 has this "feeling" when the device is charging
     
  5. oldmacs macrumors 68040

    Joined:
    Sep 14, 2010
    Location:
    Australia
    #5
    I've had this on all metal Macbooks I've used without the grounded extension cord.
     
  6. Marshall73 macrumors 65816

    Marshall73

    Joined:
    Apr 20, 2015
    #6
    I get this on my 2012 non retina. Feels weird so I use the grounded extension. I have a spare one ready to use with my new MacBook when it arrives.
     
  7. viljamip macrumors regular

    Joined:
    Jan 22, 2016
    #7
    It usually gets less noticeable if you plug the power brick in the other way around.
     
  8. schmidti91 macrumors regular

    schmidti91

    Joined:
    Oct 10, 2016
    Location:
    Eisenach, Germany
    #8
    Same with the European adapters or exclusive to the US?
     
  9. Wowereit macrumors 6502a

    Joined:
    Feb 1, 2016
    Location:
    Germany
    #9
    Yes, same with ungrounded Europlug
     
  10. schmidti91 macrumors regular

    schmidti91

    Joined:
    Oct 10, 2016
    Location:
    Eisenach, Germany
    #10
    Thank you. I was on the fence of buying the extension cord but now I'll get it for sure
     

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