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5 pin Apple power connector layout
5 pin Apple power connector
at the MacBook
Pin Pin
Name		 Description
1 Ground  
2 V+ 6.86 VDC idle
14.5, 16.5 or 18.5 VDC depending on load
3 LED connects to a 1-wire chip inside the connector, which controls the charging voltage and the LED status
4 V+

6.86 VDC idle
14.5, 16.5 or 18.5 VDC depending on load
5 Ground  

Outer frame is magnetized.

Connector can be used in either orientation. 

5 pin Apple power connector layout
5 pin Apple power connector
at the Cord
Pinout status: +31 -0
According to 32 reports in our database (31 positive and 0 negative) the Apple MacBook power connector (MagSafe) pinout should be correct.

Is this pinout
NO DIY devices
Apple MacBook power connector (MagSafe) visual pinout:click to enlarge
Source(s) of this and additional information: http://en.wikipedia.org/wiki/MagSafe, http://fieldeffect.info/w/MagSafeOtomy
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