Replacement magsafe charger leaking electricity into chassis?

Discussion in 'MacBook' started by gerlewis, Feb 9, 2010.

  1. gerlewis macrumors newbie

    Joined:
    Feb 9, 2010
    #1
    I bought this item from ebay:

    http://cgi.ebay.co.uk/ws/eBayISAPI....nkw=360222254116&_fvi=1&_rdc=1#ht_3326wt_1020


    (item number: 360222254116)

    When I run my finger anywhere over the aluminium chassis my finger feels like either the laptop is vibrating, or there is a tiny grain of sand under my finger tip. I know these are both untrue as when my finger is stationary it doesnt do it, and also I can use any finger or even my wrist as i type this.

    Then, when I unplug the magsafe, it ceases to do it!

    Am I barking up the wrong tree, and also why does it do it only when my finger is moving?

    Is this a new issue or has anyone else had their replacement charger causing a funny feeling under the fingers?

    PS - it is safe?

    Ger
     
  2. miles01110 macrumors Core

    miles01110

    Joined:
    Jul 24, 2006
    Location:
    The Ivory Tower (I'm not coming down)
  3. chrismacguy macrumors 68000

    Joined:
    Feb 13, 2009
    Location:
    United Kingdom
    #3
    That seems unlikely - mainly because electricity could flow to the chassis, but it would be a higher current (It would cause physical pain). Its also nearly impossible that the charger could cause it as it would have to go through the same Power-IN board. So im pretty sure youre barking up the wrong tree :S
     
  4. gerlewis thread starter macrumors newbie

    Joined:
    Feb 9, 2010
    #4
    yes, its the plug which came with the original charger.

    It defo only happens when the laptop is plugged into the charger - I just tried it again.

    I have emailed the seller - not that that will probably help!

    Ger
     
  5. gorn macrumors member

    Joined:
    Jun 17, 2009
    #5
    For what it's worth, I've felt this before using an original apple adapter.

    Are you using the 3 prong connector or the 2 prong? Either way try the other one. Generally the 3 prong would be better, but it might be that you're touching another ground that is at a slightly different potential.
     
  6. gerlewis thread starter macrumors newbie

    Joined:
    Feb 9, 2010
    #6
    Im in the uk, and only have a 3prong plug adapter.

    I have emailed the seller, and he is going to send me another for £1.

    Watch this space!
     
  7. cosminonea macrumors newbie

    Joined:
    Apr 19, 2011
    #7
    same problem here with an early 2011 mbp 17''.
    it looks like if you use the charger and plug it straight into the wall socket using the 3 prong plug adapter you get no ground. although the plug adapter has 3 prongs the ground is not connected.

    Fortunately if you use the extension power cord everything is fine as it has the ground properly wired.
     
  8. eman macrumors 6502a

    Joined:
    Nov 5, 2007
    Location:
    In the great white north
    #8
    Laptops run on Dc low voltage current and amps, so there should be no pain.
     
  9. eman macrumors 6502a

    Joined:
    Nov 5, 2007
    Location:
    In the great white north
    #9
    Every household two prong plug has (or should have) a ground wire and a hot wire, the three prong plug just has an extra (or second) ground wire.
     
  10. owen9955 macrumors newbie

    Joined:
    Mar 19, 2010
    #10
    This worked a treat for me :D
     

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