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Reduce pressure on laptop power cord connectors Laptop Macs
This may be old news, but I thought it was a worthy suggestion to prolong the life of any Mac power adapter cord that has the small u-shaped sliding cord keeper. The idea is useful enough that it might save Apple some complaints about their shorted-lived cords.

Slide the cord keeper right up to the reinforcement at the male end, as seen in the image at right. Insert the plug into your Mac. About three inches from Mac, make a loop and double the cord back on itself and insert the doubled portion into the cord keeper to maintain the loop. This reinforces the connection to the computer, holding it at a 90 degree angle from computer. It also serves as a shock absorber, as the loop will release first before pulling the cord from the computer.

[robg adds: I have a setup at home that's conducive to fraying the power cord -- the power cord runs out the side of the MacBook Pro, then backwards through a hole in the desk, leading to some direct pressure on the connector. I hadn't thought to use the cord keeper, but this is a great solution -- I put the clip somewhat further away from the power connector, and made the loop larger, than seen in the provided photo above. I feel much more comfortable with this setup; there's now no direct backwards pressure on the cable.]
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Reduce pressure on laptop power cord connectors
Authored by: sjmills on Dec 12, '06 10:13:48AM
Doing that will put more stress on the cable where it's attached to the clip (it will be bending at a very sharp angle), rather than putting the stress where it should be, on the stress reliever built into the end of the plug (which causes it to bend at a larger radius). I'd guess this will cause the the wire to break even faster.

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Reduce pressure on laptop power cord connectors
Authored by: ghay on Dec 12, '06 10:27:51AM

I disagree, any such stress would simply force the cable to 'pop' out of the clip.

Rather than loop the cable back on itself simply make a loop __O__ ?

In any event, you are going to end up with a power block with a damaged connector, because they are just poor deisgns.



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Reduce pressure on laptop power cord connectors
Authored by: sjmills on Dec 13, '06 08:46:58PM

I'm talking about the location where the cable is not attached to the clip, and it will now be bent at a sharp angle around a sharp[er] object than the stain relief on the plug. Repeated bending there from everyday movement of the cable/computer will cause it to fail faster.



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Reduce pressure on laptop power cord connectors
Authored by: shoobe01 on Dec 12, '06 11:10:06AM

The loop can be made larger, and anyway, I have never had a cord failure except when pinched under heavy, sharp, metal things. Its made of good stuff. Its also running at that radius or so when you wrap it up. Turns a series of 90° bends.

The plug part fails all the time, however, so this would be better, to me.

Also, I have some of the gray ones that don't light up, the flying saucer ones. They never, ever, fail like the shiny ones with the square block.



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Reduce pressure on laptop power cord connectors
Authored by: landis on Dec 12, '06 01:52:15PM

But how is the power supposed to make it around that sharp corner? Electricity only flows in straight lines, right?



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Reduce pressure on laptop power cord connectors
Authored by: bugmenot on Dec 12, '06 06:45:38PM

Ah, but wire in a loop creates an induction magnetic field which reduces ripple voltage and supplies cleaner power!



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Reduce pressure on laptop power cord connectors
Authored by: RawkBob on Dec 12, '06 07:34:23PM

Cool, i've been doing this since i got my powerbook a couple of years ago, and i do tend to go through cables quite quicky. This does save the powercord from damage as long as it's not too tight a loop ^_^

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Reduce pressure on laptop power cord connectors
Authored by: giulio on Dec 13, '06 07:15:36AM

How does this bend the laws of physics? If the cord is being pulled when straight, it will be pulled when bent. You're just changing the spot being pulled. But the force will still make its way to the connector/plug anyway. So whats the difference?
The only way to relieve the stress is to glue the cord to the case. So when the cord gets pulled it pulls on the case.

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Reduce pressure on laptop power cord connectors
Authored by: zarqman on Dec 13, '06 08:14:55PM

for what it's worth--in my experience the problem with the connector doesn't develop from having it plugged into the laptop; it develops from wrapping up the cord onto the square brick.

i think wrapping up the cord as tightly as using the two flip-out anchors requires causes the plastic casing for the cord to pull away from the connector and over a period of months eventually pulls out.

on my current powerbook, which is just shy of 2 years old, i have never wound it up and instead just gather the cord up loosely and throw the whole mess in my backpack. granted, it's no longer nice and neat; but, so far, there is no evidence of the cord pulling away from the connector. i suspect a baggy-tie or velcro cable tie would make it more organized without putting unnecessary pressure on the connector.

of course, if apple would fix the design, we wouldn't be having this discussion. hopefully one day they'll get to it.



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Reduce pressure on laptop power cord connectors
Authored by: SteveCan on Feb 18, '09 11:48:07AM

Not a good solution ... Here is a real way to reduce the pressure on the puny power connector, use a real cable retention device like the JerkStopper Cable safety kit. Leo LaPorte even uses on on his MagSafe endowed MAC as does my wife. It's cheap and it works!



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