MBP 17" Power

Discussion in 'MacBook Pro' started by tongrd, Feb 3, 2010.

  1. tongrd macrumors newbie

    Joined:
    Sep 26, 2009
    #1
    I've got an extra older adapter that is 60W, but my new MBP runs off an 85W i think, so would it be alright to use the 60W with my 17" MBP, or will this somehow screw up the battery or something?
     
  2. Alvi macrumors 65816

    Alvi

    Joined:
    Oct 31, 2008
    Location:
    Mars
    #2
    It won't even feel the charge, it's less power, it just wont work, and if it does you're underpowering your computer which could scew up stuff
     
  3. miles01110 macrumors Core

    miles01110

    Joined:
    Jul 24, 2006
    Location:
    The Ivory Tower (I'm not coming down)
    #3
    Haha, wrong on all counts except for the underpowering one. It will charge, just very slowly. I'd try to use an 85W adapter though.
     
  4. Thiol macrumors 6502a

    Thiol

    Joined:
    Jan 26, 2008
    #4
    Agreed. I've done it myself. It will charge, but a little more slowly. If you only charge overnight, or always keep it plugged in, it won't affect you a bit. If you're often recharging on the road though, you'll definitely want a 85W adapter.
     
  5. Alvi macrumors 65816

    Alvi

    Joined:
    Oct 31, 2008
    Location:
    Mars
    #5
    Ouch! It seems I'm a huge smartass! Sorry :)
    I still think it could screw up your battery through...
     
  6. Kronie macrumors 6502a

    Kronie

    Joined:
    Dec 4, 2008
    #6
    Actually its better for batteries to be charged slower and with less power than faster and with more juice. You would probably be doing your battery a favor by using less watts.
     
  7. tongrd thread starter macrumors newbie

    Joined:
    Sep 26, 2009
    #7
    well thats good to hear because the cord on the 85W charger is rather short so I use the 60W one for travelling, thanks guys:)
     
  8. carl l macrumors newbie

    Joined:
    Feb 5, 2010
    Location:
    CA
    #8
    Wrong. It'll do no harm at all, but if running multiple high drain apps it may not have enough power so the computer battery may drain rather than charge.

    I keep a 60W as backup but usually use the 85 it came with.
     
  9. Jaro65 macrumors 68040

    Jaro65

    Joined:
    Mar 27, 2009
    Location:
    Seattle, WA
    #9
    Same here. 60W power supply is a good back-up but I normally use the 85W one.
     

Share This Page