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5 pin Apple power connector layout
5 pin Apple power connector
at the MacBook
5 pin Apple power connector layout
5 pin Apple power connector
at the Cord
Pin Pin
Name
Description
1 Ground  
2 V+ 16.5 VDC
3 Charge control Charge control pin to change LED color and adapter switch on/off
4 V+ 16.5 VDC
5 Ground  

Measuring with no load will give 6.86 VDC; the full 16.5 V is provided to the proper load. 
 

Outside area is magnetic.

Designed to be able to be flipped over.

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