2 prong ungrounded power supply safe?

Discussion in 'MacBook' started by kkamin, Apr 22, 2011.

  1. kkamin macrumors member

    Joined:
    Mar 24, 2009
    #1
    I just bought a back-up power supply for my Macbook.

    It is an official Apple Magsafe brick.

    http://www.amazon.com/Apple-MagSafe-Adapter-MacBook-A1184/dp/B002GU57E6

    My current power supply is grounded this one is not. I'm worried about where static discharges will go when passed to the computer if there is no ground. BUT it seems weird Apple would make an unsafe power supply.

    Any insight is appreciated.

    Best,

    Kkamin
     
  2. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #2
    Yes, it's safe. Apple has been using these adapters successfully for years, on millions of notebooks.
     
  3. alust2013 macrumors 601

    alust2013

    Joined:
    Feb 6, 2010
    Location:
    On the fence
    #3
    If it wasn't safe to use, apple wouldn't have been making it the same way for the past 10 years. It should have come with the longer extension that is grounded as well, however, the ground prong is a dummy anyway, there is not a ground prong coming out of the brick. It's the same for any laptop I have ever used.
     
  4. blackburn macrumors 6502a

    blackburn

    Joined:
    Feb 16, 2010
    Location:
    Where Judas lost it's boots.
    #4
    The ground is not dummy. It is connected inside the power brick and from the cable to that metal thing that holds the plug in place.
     

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