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difference in the two wall plugs?

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

  1. macrumors member

    Hi what's the different between connecting the charger directly into the wall plug or using the ac power cord?
  2. Moderator


    Staff Member

    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. macrumors member


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


    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/

    Attached Files:

  5. macrumors 68030


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