macbook 60watt ac adapter on macbook pro

Discussion in 'MacBook Pro' started by whyrichard, Apr 6, 2007.

  1. whyrichard macrumors 68000

    Joined:
    Aug 15, 2002
    #1
    Hello,


    i have a macbook pro, i carry it around in my shoulder bag often.
    my gf has a macbook, she leaves it at the house.

    i admire the petite size of her ac adapter. it is 60 watt, mine is 75 watts and feels almost 35% larger....

    is there any reason not to use the smaller, 60 watt macbook adapter on my macbook pro?


    it charges the battery just fine!

    thanks,
    r.
     
  2. Eidorian macrumors Penryn

    Eidorian

    Joined:
    Mar 23, 2005
    Location:
    Indianapolis
    #2
    It should just charge your battery much more slowly. There might be an issue where the battery might not charge at all if you're hitting the laptop at 100% power usage but it's safe otherwise.
     
  3. whyrichard thread starter macrumors 68000

    Joined:
    Aug 15, 2002
    #3
    what about if a 75 watt macbook pro charger is used on a macbook?



    r.
     
  4. Scarlet Fever macrumors 68040

    Scarlet Fever

    Joined:
    Jul 22, 2005
    Location:
    Bookshop!
    #4
    works for me :)
     
  5. gnasher729 macrumors P6

    gnasher729

    Joined:
    Nov 25, 2005
    #5
    It will get destroyed after a while. It will always be running above its design limits. You don't know what it will do at the time it breaks; it might destroy you MacBook Pro, and that will be your own fault. The adapter will definitely break after some time.
     
  6. sdeschenes macrumors newbie

    Joined:
    Mar 13, 2008
    #6
    85 w & 60 w are interchangeable

    In May 2006, Macworld said you could interchange the 60 watt and 85 watt adapters between the MacBook and MacBook Pro. They said:

    Apple says you can use the more powerful, 85-watt power supply with a MacBook without any problems, and that in 80 percent to 90 percent of situations, you can use the MacBook’s power supply with the more-demanding MacBook Pro as well. If you’re really taxing the MacBook Pro’s processor with some heavy-duty work, the MacBook’s adapter will still be able to power the MacBook Pro—but it may not have any power left over to charge its battery.​

    http://www.macworld.com/article/50949/2006/05/macbookfaq.html

    They further confirmed this in their article called Life on the Road on May 13, 2007.
    http://www.macworld.com/article/56762/2007/03/mobile_road.html
     
  7. thegoldenmackid macrumors 604

    thegoldenmackid

    Joined:
    Dec 29, 2006
    Location:
    dallas, texas
    #7
    Most the time when I use my MacBook charger with the MacBook Pro, it just hold's the charge, but not charges.


    To the OP...the new MacBook Pro chargers are the smaller MacBook like
     
  8. duffyanneal macrumors 6502a

    duffyanneal

    Joined:
    Feb 5, 2008
    Location:
    ATL
    #8
    I use my MBA adapter (45W) with my MBP. It supplies enough power to run the machine and charge the battery while doing general office work.
     
  9. matperk macrumors 6502

    Joined:
    May 6, 2004
    Location:
    Milwaukee, Wisconsin
    #9
    The power adapters for the new MBPs are the smaller MacBook size. You could just pick on of those up at the store.
     
  10. brandonshough macrumors regular

    brandonshough

    Joined:
    Jul 19, 2007
    Location:
    Phoenix, AZ
    #10
    The newer higher powered bricks are the same size...
     
  11. alphaod macrumors Core

    alphaod

    Joined:
    Feb 9, 2008
    Location:
    NYC
    #11
    No they're not. They are still a little bigger.
     
  12. thegoldenmackid macrumors 604

    thegoldenmackid

    Joined:
    Dec 29, 2006
    Location:
    dallas, texas
    #12
    define "little" I haven't stood them up...but they seem to be the same size

    redesign on the left, original on the right

    [​IMG]
     

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