MB MBP charger interchangeable?

Discussion in 'MacBook' started by vp911, Feb 28, 2008.

  1. vp911 macrumors member

    Feb 23, 2008
    Can the magsafes be interchanged between the two laptops? I believe the MBP one is at 85wh and the MB at 60 (or something like that) - but can I use the 85 with the MB and the other way around?
  2. robbieduncan Moderator emeritus


    Jul 24, 2002
    You can certainly use an 85W adaptor on a MB: it will simply draw less power. There have also been multiple reports of successfully using a 60W adaptor on a MBP: it simply charges more slowly. I'd not necessarily recommend this though...
  3. MacDann macrumors 6502a


    Mar 27, 2007
    Can see the end of the Earth from here
    Yes, you can, however, the 65W (MacBook) charger will charge the battery much more slowly, and under some conditions might overheat if you're using the computer and attempting to charge.

    In a pinch you could do it, but I wouldn't suggest doing it long term. On the other hand, if you're going 85W to a Macbook, no problem.

    I would expect that they have some sort of internal thermal limiter, but that's no guarantee that it wouldn't overheat.

  4. Kalison macrumors member

    Jan 8, 2008
    Yep, and you can even use the 45w from the MacBook Air on either MB or MBP.

    They say however... it can only charge or run the MB/MBP at one time. So if you want to use your notebook it can only power it, not charge it... but if you sleep it and have it plugged in, it will charge albeit slowly.

    annnnyway... yes there shouldn't be any problems.
  5. honeycrisp macrumors regular

    Nov 28, 2007
    Interesting. I did not know that!
  6. vp911 thread starter macrumors member

    Feb 23, 2008
    Thanks. I have a spared MBP charger and just bought the MB which just saved me $80 for a second charger.

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