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I have a fairly common problem with charger. The wire on one end is getting pulled out. How can I fix this problem?

My hunch is that it should be possible to open up the charger, and put the wire deeper into the charger (or something like that).

I can't seem to find a way to open the charger.

Any ideas?

Here is a picture of the charger:

enter image description here

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Normal cords I'm more than happy to cut and play with, but this is a power supply and can be VERY dangerous. I would be careful no matter your decision, and highly suggest you purchase another. –  KronoS Jul 13 '12 at 0:36
    
@KronoS, what do you think the discharge time is? –  soandos Jul 13 '12 at 0:37
    
So your question is how to crack open the plastic case? Usually it will have a tab where one half has a sort of hook and the other half has a sort of loop, just like Velcro. You need to pry the side open a little to get a close look to see which half is which and then you can manipulate the sides in a way such as to pull the hook out of the loop and undo the tab. Repeat for all the tabs and the whole thing will just pop open. Then to close it, you just apply some pressure to snap it back because they are designed to be tapered so that you can just press the two halves together. –  Synetech Jul 13 '12 at 0:37
    
I don't know... and that's the problem. –  KronoS Jul 13 '12 at 0:38
    
Are you sure that the wire coming out isn't designed that way? Most laptop chargers have two sections: The brick with a thin wire going to the computer, and a removable cable for the wall. –  elegantonyx Jul 13 '12 at 0:46
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2 Answers

up vote 4 down vote accepted

Practically and safety speaking, and although its a simple task in theory, its just not a good idea for such an inexpensive and critical part. I would agree with @KronoS on this.

I've tried something similar and found that most chargers are fused together (the two "plastic" parts) with either high temperature or glue. The only way to break the seam causes a very ugly edge that even if you are lucky to get a semi-clean fracture without causing a side fracture, will still look really sloppy when its glued back together.

Inside, there are mostly likely two large capacitors that would still hold a charge, regardless of how long its unplugged - because chargers contain switching circuits that aren't like an open faucet that can "run out". So in theory, if you managed to cut this open without loosing any fingers, avoided the capacitors, you then most likely find that the AC cord needs to be resoldered back on. It should have a knot on the inside to prevent it from coming out of the charger case. (Underwriter's knot).

Take a look on ebay. You can get a replacement generic charger for about $10 with a 3 year warranty. Speaking from experience, its just not worth the time and risk to bother hacking a semi-broken power charger.

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I would think/hope the higher-end components would use the tabs inside instead of the heat-fusing, but yes, the fused ones can be nasty. As for generic chargers, I really wouldn't trust any of those because I have read nothing but bad reviews. I was looking for a power-adapter to turn an internal hard-drive to an external one, but a huge number of reviews keep saying that the adapters burned their hard-drives. :-o –  Synetech Jul 13 '12 at 1:15
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I've opened one before and it's way harder than you think to get open and there's no nice way to close it again.

There's almost nothing you can do to fix this ...plus it's not worth it as others have pointed out.

Try not to buy a cheap replacement. Google for a better one in fact as it will likely be worth the money since you're already loosing time on this one...

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The previous answer is right on...oops didn't see the whole thing...however, just to be a nerd, I would think it irregular for a commercial product to not have a bleeder resistor on the caps. –  wbg Jul 13 '12 at 1:15
    
You pointed out that cheap power-adapters are bad. –  Synetech Jul 13 '12 at 1:16
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