MagSafe2 to MagSafe adapter (the other way around)

ansabakhan

macrumors 65816
Original poster
Mar 3, 2010
1,210
0
it is possible to use my new MagSafe2 with old macbook pro (old magsafe on it)? i cannot find any adapter.
 

ansabakhan

macrumors 65816
Original poster
Mar 3, 2010
1,210
0
So basically I'll Ned to keep older charger for my old MacBook pro
 

NewbieCanada

macrumors 68030
Oct 9, 2007
2,574
35
So basically I'll Ned to keep older charger for my old MacBook pro
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.
 

mgipe

macrumors demi-god
Oct 6, 2009
673
143
CA
Magsafe 2 runs at 20v; magsafe runs at 16.5v (and the macbook air magsafe actually ran at 14.5v).
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!
 

seysearles

macrumors newbie
Jun 2, 2011
27
0
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?
 

terraphantm

macrumors 68040
Jun 27, 2009
3,742
557
Pennsylvania
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?
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?
 

seysearles

macrumors newbie
Jun 2, 2011
27
0
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?
I already purchased an extra Magsafe 2 :(
 

apegia

macrumors newbie
Nov 7, 2007
2
2
Since Apple will not license the MagSafe connector how do you figure that it will be a Kickstarter project?
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
 

AppleMacFinder

macrumors 6502a
Dec 7, 2009
796
143
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!
 

zarathu

macrumors 6502
May 14, 2003
273
46
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?
You can find a YOUTUBE which shows you how to fix the cable without buying a new power brick.
 
  • Like
Reactions: AppleMacFinder

butterburger cookybutter

macrumors member
Aug 5, 2016
48
31
Would it kill the macbook if one simply filed down the edges on the MagSafe 2?
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.
 
Last edited:
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.