MBP Charger for MBA?

Discussion in 'MacBook Air' started by ChaosAngel, Jan 16, 2011.

  1. ChaosAngel
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    macrumors member

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    Sep 29, 2005
    Location:
    UK
    #1
    Simple question, can I use my MBP charger (85W) on my new MBA 11"?

    My understanding is that using a high wattage is fine, as the charging circuit in the MBA will only draw as much power as it needs. However, you should not use a lower wattage charger. Is this true or am I talking rubbish?

    Cheers.
     
  2. miles01110
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    macrumors Core

    miles01110

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    The Ivory Tower (I'm not coming down)
  3. Hellhammer
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    Moderator emeritus

    Hellhammer

    Joined:
    Dec 10, 2008
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    Finland
    #3
    The wattage is pretty irrelevant. Using higher is perfect as it only draws as much as it can. Using lower is fine as well but charging may take longer or if you're running something heavy, it may not get enough power.
     
  4. ChaosAngel
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    thread starter macrumors member

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    Sep 29, 2005
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    UK

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