difference in the two wall plugs?

Discussion in 'MacBook Air' started by iimac, Sep 17, 2013.

  1. iimac
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    macrumors member

    Sep 1, 2008
    Hi what's the different between connecting the charger directly into the wall plug or using the ac power cord?
  2. 840quadra
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    Staff Member

    Feb 1, 2005
    Chanhassen, Minnesota
    I assume you are talking about the 2 prong click in, versus the 3 prong click in with the cable?

    The difference is the 3 prong cable will be grounded, the added benefit is static electricity would be passed through it without going through the laptop's power system / circuitry.
  3. iimac
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    thread starter macrumors member

    Sep 1, 2008

    so would you recommend using the 3 prong when possible as oppose to the two?
  4. grayskyz
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    macrumors regular


    Nov 21, 2008
    Los Angeles
    The difference is 4.9 feet of grounded extension cable. There's not much benefit other than that. I use them both regularly but since I got the plug bug I've mostly been using it without the extension so I can do this: http://twelvesouth.com/products/plugbug/

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