just got my mbp and was wondering why it has 2 chargers

Discussion in 'MacBook Pro' started by utl768, Aug 30, 2012.

  1. utl768 macrumors 6502

    Joined:
    Sep 8, 2009
    #1
    it has the magsafe and then an ac cord

    which one should i use?
     
  2. sevimli macrumors 6502a

    Joined:
    Jun 26, 2007
    #2
    AC cord is replaceable with the little adapter on the magsafe charger. There are no 2 chargers. :cool:
     
  3. pgiguere1 macrumors 68020

    pgiguere1

    Joined:
    May 28, 2009
    Location:
    Montreal, Canada
    #3
    The cord is just an extension. If you want a longer cord, remove the pins on the power supply like that:

    [​IMG]

    And connect the extension cord instead. Most people I know use the extension, but you may prefer not to use it for more portability. It's just a matter of how long of a cord you need, it makes no difference on charging itself.
     
  4. utl768 thread starter macrumors 6502

    Joined:
    Sep 8, 2009
    #4
    thanks for the responses

    first apple laptop so i wasnt sure what was what
     
  5. Peace macrumors Core

    Peace

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    Space--The ONLY Frontier
  6. Puevlo macrumors 6502a

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    Oct 21, 2011
    #6
    Actually the electrons have further to travel which increases the resistance and reduces the efficiency. Over the lifetime of the MBP we are talking hundreds of gigawatts wasted.
     
  7. Mal macrumors 603

    Mal

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    Location:
    Orlando
    #7
    Hundreds of gigawatts? Absolutely not. Ridiculous hyperbole.

    jW
     
  8. Ledgem macrumors 65816

    Ledgem

    Joined:
    Jan 18, 2008
    Location:
    Hawaii, USA
    #8
    If you'll be using your charger in a public place where other people plug in, please switch the connector out to use the cord. I've been in many libraries where electric outlets couldn't be used because someone had to plug their entire brick into an outlet, covering up the outlet beside it.
     
  9. pgiguere1 macrumors 68020

    pgiguere1

    Joined:
    May 28, 2009
    Location:
    Montreal, Canada
    #9
    That's terribly exaggerated. Your MBP itself will probably never use a full megawatt during its lifetime. Waste because of the extension is negligible. Charging time is the same.
     
  10. heisenberg123 macrumors 603

    heisenberg123

    Joined:
    Oct 31, 2010
    Location:
    Hamilton, Ontario
    #10
    OP dont worry about the megawatt and gigawatt posts listen to the people that said its to make the cord longer, thats the correct answer
     
  11. Interstella5555 macrumors 603

    Interstella5555

    Joined:
    Jun 30, 2008
    #11
    I bet you're confused about the double rainbow as well...
     
  12. old-wiz macrumors G3

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    Mar 26, 2008
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    West Suburban Boston Ma
  13. iLikeTurtles! macrumors 6502

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    Jun 22, 2012
    #13
    as others have said, its just an extension cord....LOL
     
  14. takeshi74 macrumors 601

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    Feb 9, 2011
    #14

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