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Apple Macbook power cord repair

My Mac power cord was frayed and the wiring was exposed at the wall wort.  I reinforced the cord by cutting it, fitting some shrink tubing over the worn area, and soldering the cord back together.

Tools needed:
-wire cutters/stripper
-soldering gun & solder
-shrink tubing and heat source (lighter)
-soldering helper
 
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Step 2: Shrink tubing

Slip the shrink tubing over the cut cord.  I used three different sizes all gradually getting bigger in diameter to give the cord lots of support.

Step 3: Soldering

Before you do any soldering, make sure to slip some shrink tubing over the cord for use after you've soldered the cord back together.  Solder the inner wires together first and then cover with shrink tubing.  Then solder the outer wire together and cover with a larger diameter shrink tub.  
wetnap2 years ago
It is better to stagger the solder points so they aren't side by side. Also you can add some epoxy under the heatshrink for more strength, especially if you add some stiff object like an additional piece of scrap wire or plastic for strength, a splint essentially.
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