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MacBook Pro MagSafe 2 Adapter
Moderators: adafruit_support_bill, adafruit

Please be positive and constructive with your questions and comments.

MacBook Pro MagSafe 2 Adapter

by offering on Thu Aug 06, 2020 9:36 am

Hi,

I'm a complete newbie to DC power. I recently came across the 2.1mm DC Barrel Jack to 2nd Generation MagSafe Adapter:

https://www.adafruit.com/product/3547#description

What other parts would I need to complete this setup for an AC power brick? Still feeling the burn of spending $100 while I was traveling and needed to replace my Apple MagSafe 2 charger which broke all of a sudden.

Thanks!
offering

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Re: MacBook Pro MagSafe 2 Adapter

by adafruit_support_mike on Mon Aug 10, 2020 1:49 am

You'd need another laptop power supply whose output end is a 2.1mm barrel plug.

For compatibility, check the spec plate on the Apple power supply to find out what voltage and current it puts out. One I just pulled from my parts bin specs its output as 16.5V to 18.5V @ 4.6A.

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Re: MacBook Pro MagSafe 2 Adapter

by offering on Mon Aug 10, 2020 2:27 am

I see. Are 2.1mm DC barrel plugs common for popular PC brands like Lenovo, Dell, Asus?

I have mid-2015 MacBook Pro. Output is 20V, 4.25A max.

Thank you!

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Re: MacBook Pro MagSafe 2 Adapter

by adafruit_support_mike on Tue Aug 11, 2020 3:07 pm

I'm afraid we don't have any information about that. Manufacturers use different connectors for a variety of reasons, so you'll have to check around and see what's available.

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Re: MacBook Pro MagSafe 2 Adapter

by offering on Tue Aug 11, 2020 8:22 pm

I see

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Please be positive and constructive with your questions and comments.