MagSafe2 to MagSafe adapter (the other way around)

Discussion in 'MacBook Pro' started by ansabakhan, Aug 17, 2012.

  1. ansabakhan macrumors 65816

    ansabakhan

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    Mar 3, 2010
    #1
    it is possible to use my new MagSafe2 with old macbook pro (old magsafe on it)? i cannot find any adapter.
     
  2. alphaod macrumors Core

    alphaod

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  3. joec1101 macrumors 6502

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    So Cal, USA
  4. miles01110 macrumors Core

    miles01110

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    #4
    Apple will probably never make one either. Kickstarter in 3...2...
     
  5. brand macrumors 601

    brand

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    #5
    Since Apple will not license the MagSafe connector how do you figure that it will be a Kickstarter project?
     
  6. terraphantm macrumors 68040

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    #6
    Magsafe2 runs at a higher voltage than Magsafe, so I don't think Apple will make one.
     
  7. ansabakhan thread starter macrumors 65816

    ansabakhan

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    Mar 3, 2010
    #7
    So basically I'll Ned to keep older charger for my old MacBook pro
     
  8. mgipe macrumors demi-god

    mgipe

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    #8
    It does? Interesting... What voltage does each run at?
     
  9. NewbieCanada macrumors 68030

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    Oct 9, 2007
    #9
    They'll continue to sell chargers for older models for quite some time, if something ever happens to yours.

    And if they change the Thunderbolt Monitor to Magsafe 2 in the next refresh, they'd probably create an adaptor so it could be used with older Macs.
     
  10. terraphantm macrumors 68040

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    Pennsylvania
    #10
    Magsafe 2 runs at 20v; magsafe runs at 16.5v (and the macbook air magsafe actually ran at 14.5v).
     
  11. mgipe macrumors demi-god

    mgipe

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    #11
    Very interesting. I wonder why they did that? Maybe to lower the current (amps) under full load because the smaller connector pins can't carry as much current? Probably also means that the older 85 watt adapter with "MagSafe to MagSafe 2 converter" won't supply all 85 watts and will take longer to charge.

    Thaks for the info!
     
  12. seysearles macrumors newbie

    Joined:
    Jun 2, 2011
    #12
    That bites. My old cable is shot to pieces and i was hoping to buy a second MagSafe 2 adapter to use with both systems. If there is any news on this please update. Am I right in saying that an adapter converting down to the MageSafe 1 is not possible in terms of voltage?
     
  13. terraphantm macrumors 68040

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    Pennsylvania
    #13
    Right. Well, the system may be able to handle 20v without failing, but Apple won't make an adapter (and will cite the voltage difference as the reason if pressed on the issue).

    Why not get an 85w MagSafe 1 and an adaptor and use that with both systems?
     
  14. bogatyr macrumors 65816

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    Mar 13, 2012
    #14
    This is what I do, especially since I prefer the L shape.
     
  15. mzjin macrumors 6502

    mzjin

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    Oct 28, 2011
    #15
    Yes, or you can buy an extra Magsafe 1 and an extra adapter and sell your new one.
     
  16. seysearles macrumors newbie

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    Jun 2, 2011
    #16
    I already purchased an extra Magsafe 2 :(
     
  17. mackila macrumors newbie

    mackila

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    Aug 2, 2010
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    Torrent (Spain)
    #17
    I have a 65w A1435 Magsafe 2: 16,5v and 3,65A

    Same voltage
     
  18. terraphantm macrumors 68040

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    Pennsylvania
    #18
    I made that post before the 65w existed. The 85w is 20v @ 4.25A
     
  19. fletch69ad macrumors newbie

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    Oct 18, 2013
    #19
    The did t hat so that they can screw you out of another $100 for a different adapter. There is no reason to do this other than to drive sales.
     
  20. ghipkins26 macrumors newbie

    ghipkins26

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    Jan 9, 2016
    #20
    Would it kill the macbook if one simply filed down the edges on the MagSafe 2?
     
  21. apegia macrumors newbie

    Joined:
    Nov 7, 2007
    #21
    Throughout the whole of Europe and in many other parts of the world, there is a thing called the "must fit" exemption to patent and design rights which protects the market for spare parts and ensures a competitive market. Any aspect of a design cannot be protected where it is to allow a mechanical connection or for one product to fit with another product in order for the original product to perform its function. This is why you can go down the road and buy an OEM fender for your car. As the Magsafe connector would simply be converting MAgsafe 2 to Magsafe 1 so that you can use a Magsafe charger on your laptop, there would be no available action by Apple. (Similarly there would be no available action if someone provided a Magsafe converter allowing a Magsafe to charge a windows machine.
    Nick adllegal.com
     
  22. AppleMacFinder macrumors 6502a

    AppleMacFinder

    Joined:
    Dec 7, 2009
    #22
    Imagine that you have Magsafe 2 adapter and you would like to transform it to Magsafe (Magsafe 1)

    1) Get a Magsafe 1 connector somewhere. It could be either taken from a broken charger
    or bought separately for about $5 at eBay or AliExpress
    2) Remove Magsafe 2 connector from your working charger
    3) Solder Magsafe 1 connector instead of Magsafe 2,
    and isolate everything with thermal tubes / insulation tape / non-conductive thermal glue

    It should work, I think!
     
  23. alphaod macrumors Core

    alphaod

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    NYC
    #23
    No, since the physical shape and contact points are not the same.
     
  24. zarathu macrumors regular

    zarathu

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    May 14, 2003
    #24
    You can find a YOUTUBE which shows you how to fix the cable without buying a new power brick.
     
  25. butterburger cookybutter, Jun 30, 2017
    Last edited: Oct 18, 2017

    butterburger cookybutter macrumors member

    butterburger cookybutter

    Joined:
    Aug 5, 2016
    #25
    No, it is safe, but the MagSafe 2 power supply might not like the "MagSafe 1 era" load to which it is connected. I tried this: I ground a MagSafe 2 bit to turn it into a MagSafe Intersection bit. (I removed too much material, and melted central plastic which covers pogo pin assembly, with an electric motorised grinder. Probably, I would have done a better, much slower, job with a file.) I tried using 85W and 60W MagSafe 2 Power Adapters with MacBookPro6,1 and MacBookPro7,1 (respectively, 17-inch and 13-inch, both Mid 2010). My 60W A1435 Power Adapter works, and my 85W A1424 does not work, with test subject 2010 MacBooks Pro.
     

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