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crwdns2944351:0crwdnd2944351:0Magsafe 1 powered By USB C Universal Adapter Methodcrwdnd2944351:0crwdne2944351:0

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crwdns2936043:0crwdne2936043:0 crwdns2933505:0crwdne2933505:0 forhereyesonly

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Introduction
Using an old MacBook Pro 2012 Unibody as my main computer, I got tired of logging around the 80W power supply. I wondered, “how I could lighten my carrying bundle (computer and power supply). As my company's computer and many PC (at least in Europe) have USB C male outputs I wondered if USB C to Magsafe 1 cable existed. Online, I found a cable that can be sold as a spare part to a USB C Magsafe 1 power supply (see guide parts). On its own, the USB C to Magsafe 1 (20-25 USD/Eur) works wellconsistently provides a charge with the computer either on or off when plugged into a USB C docking stations found at work. This was already a good start. Unfortunately, it does not appear work withusing an Ipad Pro (or iphone) wall sockets does not give noticeable charging.
Then,To make the system more adaptable to different conditions I also purchased a female to female USB C adapter (10 USD/EUR). This (I hope) will allows me to get power from: (1) the commonly found PC USB C Power supplied tointo the USB C-Magsafe 1 cable toplugged into my computer (2) .
When I know my travel destination (work or friends house) will have a high wattage USB C power supplied I carry only this USB C to Magsafe 1 cable + female female adaptor in an attempt to find good candidates. Once I find compatible units at destination I no longer need to carry around the original heavier 80W; that stays at home.
I have read that USB-C has a direction to the power so you may have to try all direction of the female to female converter. Additionally, I would do this test while you are awake or close to the computer and built trust in the system before you leave it for overnight. I have only used this system ~10 times so don't have any guarantee on the long run. I will report back here in a few months.
A few observations:
Last updates Feb 23, 2023
1) I have read that USB-C has a direction to the power.
a) I have noted that connecting all components along the "chain of cables" before plugging into the wall can positively influence the outcome.
b) One may need to try all direction of the female to female converter.
c) Testing the system while you are awake for at least 20min will improve the chances of successful overnight charging. If I don't completely turn off the computer it can stop charging after a while.
d) Turning off the computer and keeping it off during the charge cycle has a very high success rate >95%. So the systems almost always work if you want to charge without using the computer.
Last updates June 29, 2023
Conclusion
If you don't want to buy or carry around the 85W Macbook Power Adaptor but prefer to have something more modern and lightweight, you may want to give this technique a try. For the time being I have only tested with USB C docking station and 65W Lenovo power supply. Also in my opinion this method has not passed the test of time. I will report back in a few months when I feel more confident. I though I would put this here for those too eager to wait and looking for what I was looking for.



A few observations:

1) I have read that USB-C has a direction to the power.

a) I have noted that connecting all components along the "chain of cables" before plugging into the wall can positively influence the outcome.

b) One may need to try all direction of the female to female converter.

c) Testing the system while you are awake for at least 20min will improve the chances of successful overnight charging. If I don't completely turn off the computer it can stop charging after a while.

d) Turning off the computer and keeping it off during the charge cycle has a very high success rate >95%. So the systems almost always work if you want to charge without using the computer.