Can I use an 85Watt power adapter with my 13" Macbook?

Discussion in 'MacBook Pro' started by mrsundaynight, Oct 1, 2009.

  1. mrsundaynight macrumors newbie

    Joined:
    Oct 10, 2008
    #1
    My 13" Macbook Pro (brand new) came with a 60Watt power adapter. I left it at home today and need to recharge at work. Can I use the 85Watt power adapter that my friend has for his 15" MacBook Pro?

    Or will it fry my 13" Macbook?

    Thanks!
     
  2. belvdr macrumors 603

    Joined:
    Aug 15, 2005
  3. mrsundaynight thread starter macrumors newbie

    Joined:
    Oct 10, 2008
    #3
    Interesting. So why do they have the two different types of power adapters? Thanks...
     
  4. belvdr macrumors 603

    Joined:
    Aug 15, 2005
    #4
    The 15" requires more power to run the system and charge the battery simultaneously. If you were to use a 13" brick on a 15" it would run the system, and either charge the battery slower or not charge it at all.
     
  5. Pixellated macrumors 65816

    Joined:
    Apr 1, 2008
    #5
    So they only sell the computer with an adapter as large, heavy and expensive to manufacture as they need to.
     
  6. miles01110 macrumors Core

    miles01110

    Joined:
    Jul 24, 2006
    Location:
    The Ivory Tower (I'm not coming down)
    #6
    Correction: the 15" MBPs with the discrete graphics card requires more power. The base model 15" ships with the 60W adapter.
     
  7. belvdr macrumors 603

    Joined:
    Aug 15, 2005
    #7
    Didn't know that. Thanks for the update.
     

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