Strange vibration/mild electrical current on MBP casing?

Discussion in 'MacBook Pro' started by neoelectronaut, Dec 22, 2016.

  1. neoelectronaut macrumors 68030


    Dec 3, 2003
    Southeastern Louisiana
    Just received my 2016 MacBook Pro a few days back and I'm finally getting a chance to futz around with it.

    My girlfriend pointed out that if you take a finger and place it on the wrist rest area and move it across the surface the computer mildly vibrates, or perhaps it's a very mild electrical current. Does anyone else's do this? Should I be concerned?
  2. therealseebs macrumors 65816


    Apr 14, 2010
    That is a super common thing with metal-cased electronics. I have forgotten the fancy name, but as I recall, it is not a result of "bad grounding", despite lots of people saying it probably is on the Internet. It's a weird electrical field effect, and should be completely harmless.
  3. pshifrin macrumors 6502


    Mar 14, 2010
    My 13 inch does exactly the same thing but I'm not concerned because of what people have written here.
  4. A11 macrumors newbie


    Dec 22, 2016
    My 15 inch has done this for years now. It is harmless, I asked Apple Support and they said that it is because of the laptop being built out of a metal casing. It is harmless, just a weird feeling.
  5. TofSanity macrumors 6502a


    Oct 29, 2010

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