TheFloatingBrain

Thank you for the reply, does this include if it plugs into a jack or prongs in which case the prongs would need to be soldered?

This is a repost from Prebuilts and Laptops, I thought it would be more appropriate here and I have an update. I have a lenovo Y700 laptop and I started having problems with my power jack earlier this week. At first I thought it was because the jack wasn't staying mounted in the case, however when I glued it down the problem persisted. I then thought there was glue inside it, there was, but after I got it all out, the problem remained. If I moved the plug, pulling it to one side or the other for instance, the computer would receive power intermittently (the plug inside the jack, moving the cord did nothing). I ordered a replacement part on amazon. At first I was delighted that the cheap repair appeared to work but this part too seems to cut out on average probably once per hour at which point it would require (much less drastic) me moving it around inside/the jack (what little mobility that is) again. But it usually stays longer this way (though some movemets only hold a little while) I pulled out a DMM today to do continuity testing on both jacks (both while they were unplugged from the mobo and plugged into the mobo while the computer was off), they appear slightly different but they both make sense and have recognizable patterns. I did a little bit of testing while the computer was on and got similar results as the extensive testing with the computer off/the jacks unplugged from the mobo, however I was not able to reproduce the conditions that lead to a bad power connection and was unable to mesure what was happening. I noticed the new part doesnt seem to fit as nicely on the prongs on the mobo as the one that came with the computer, the leads inside the plastic connector seemed to jiggle around, I am wondering if this has something to do with it it (though they are still making contact) or the fact that it appears to be wired slightly differently than the one that was already in there. Does anyone have any idea what might cause this? Bad cap on the mobo? Need a more quality part? etc. UPDATE: Last night I brought the computer over another house and for some reason it didnt want to charge almost at all there, it would be really finicky with how it sat inside the jack or whatever the problem is, and I would only get a few minutes of charging at most. Once when it was unplugged and still has 20+ minutes of battery left (no warning sign on the battery symbol) it just shut off in my face and didnt seem overheated. Thanks! - TFB

I have a lenovo Y700 laptop and I started having problems with my power jack earlier this week. At first I thought it was because the jack wasn't staying mounted in the case, however when I glued it down the problem persisted. I then thought there was glue inside it, there was, but after I got it all out, the problem remained. If I moved the plug, pulling it to one side or the other for instance, the computer would receive power intermittently (the plug inside the jack, moving the cord did nothing). I ordered a replacement part on amazon. At first I was delighted that the cheap repair appeared to work but this part too seems to cut out on average probably once per hour at which point it would require (much less drastic) me moving it around inside/the jack (what little mobility that is) again. But it usually stays longer this way (though some movemets only hold a little while) I pulled out a DMM today to do continuity testing on both jacks (both while they were unplugged from the mobo and plugged into the mobo while the computer was off), they appear slightly different but they both make sense and have recognizable patterns. I did a little bit of testing while the computer was on and got similar results as the extensive testing with the computer off/the jacks unplugged from the mobo, however I was not able to reproduce the conditions that lead to a bad power connection and was unable to mesure what was happening. I noticed the new part doesnt seem to fit as nicely on the prongs on the mobo as the one that came with the computer, the leads inside the plastic connector seemed to jiggle around, I am wondering if this has something to do with it it (though they are still making contact) or the fact that it appears to be wired slightly differently than the one that was already in there. Does anyone have any idea what might cause this? Bad cap on the mobo? Need a more quality part? etc. Thanks! - TFB

No this isent a troll sasly T.T I have sunk hundreds into this nonsense. As for the last thing, I may have to, but this may be difficult at school.

@davehkiin @Snipergod87 During my more recent attempt to keep the cord from breaking I have attempted to keep it level the best I can; but yes that was the problem this time, I havent made the cord nearly this heavy or stiff before. I went for overkill this time but I have had problems.with cords breaking internally ever since I have had laptops. No matter how I try to wrap them (when putting then away), make sure they arent being pulled on when plugged in, making sure there arent any sharp bends when they are plugged in, in general making sure they are on a level surface (even before this) and they arent being bent around any of the sensitive parts like the head or where it connects to the power brick. Im not saying I have been perfect about it, but ingeneral I have been diligent to take good care of my cords, yet they keep breaking. Thats why Im asking for help, I relise this doesent happen to most people and that most people havent tried to go to the extents I have. This really frustrates me T.T P.s A friend of mine says hebalways has a spare, and whenever his breaks he buys a new spare, but this too seems wasteful.

Hello, This is a repost from the prebuilt laptops forum. Unfortunatly the topic has been buried and the solution provided isent going to work Over the years I have had so many power cables break on me it is driving me insane! Below I have attached a picture of my current power cable. It has sticks in it wraped in electrical tape to prevent it from bending and breaking. (Later with the addition of blue duck-tape on the bottom part). This came after a long evolution of trying to stop cords from breaking, and failing. First I tried just wrapping a few layers of painters tape around the critical points (the part that plugs in, where the cord meets the adapter, etc.) That eventually failed, then I tried doing that but also detaching the bottom cable and carefully and painstakingly wrapping both cords so there are not any sharp bends and putting it in the container you see a bit of off to the left (lid on the right). That eventually failed as well, then I tried duck tape and being super carefull -- didnt work, then I tried electrical tape, worked ~better which brings us to modern day (after 7 years of cords breaking). The picture above is a picture of the cord when it was new (I had to purchase a replacement for my newer laptop, which I had too replace because alas the tape got too it too late. However a couple weeks ago I noticed I had to bend the end of the cord at a specific angle to power the computer: I thought the pin inside for the negative/positive lead was bending, or the power outlet was breaking, this was not the case, just yesterday this happened: I... CANT... WIN... So the cord itself is fine but it is now only a matter of time before the actual plug breaks. I am sick of paying for these cords I do my best to take good care of them, but all the laptops I have had (currently Lenovo Y700) have had the inexplicable design where the cord sticks horizontally out of the laptop and vertically out of the adapter. I am tired of my cords breaking and buying new ones (these days I can get knockoffs for 20$ but they used to be 60$ - 80$ for a replacement), it disrupts my school work, gaming/relaxation, personal projects, and its overall a pain. Does anyone know of an intelligently designed cord that I can replace this on with for a low price, or have any suggestions as to how to handle this issue. I have tried repairing them with not much success and thought it too risky to actually plug any in. It was suggested to me over on the prebuilt topic that I get a universal adapter and swap out the head when it breaks, but there are several problenlms with this: 1: There dont seem to be universal adapters availible that support the 135W I need 2: Its not always the head that breaks, now this can be meant in two ways it can be meant by the connector breaking like now, or the cord breaking internally near the head. In the ladder the cord doesebt awlays hreak near the head, sometimes it is where the cord comes out of the power brick. 3: Its not really a "general solution the the problem. For another little update. I have another replacment cord being shipped to me (not a univerasal one). I have been without my laptop since Sunday now and will be until Friday as the connector jas now completly torn off and the cord wont be here until thursday evening and my campus mail office wont open until the followimg morning. This is disrupting not only as just a general pain but I could be spending this time working on ny computer science and physics projects where as next week I will be cramming for 2 exams. Any help is greatly appreciated to help prevent this extremely frustrating phenomonon in the future. Thank you - TFB

Update/Bump I bought another rip off cable, its not a universal supply for the reason I described above. And I have been without my PC since Sunday and will be until at least friday. Which is a shame because I could be working on a project for my computer science class and another for my physics class right now and I wont be able too next week. I really could use some advice on this issue. i am careful to treat my cables well but this always happens and it shouldent.

So update, there is a problen with this, A: I still dont mnow for sure that the main part of the cord wont snap internally B: It dosent seem like there are 135 Watt (what I am using right now) Universal Power Supplies for sale.

No problem all cool, ty

Oh, sorry I was confused as to what your saying. Thank you.

Thank you for replying. I have been inside power cables before and usually what I find is a normal wire inside some sort of fibery stuff with metal fibers outside that layer and it seems pretty hard to patch up. I see in the picture that it looks like there is a small wire with a plug on the end which would seem to imply I have to cut open the cord. Is that correct and if so how do I go about it/patching it up? I appreciate and find your your response useful but I would also like to point out I am looking for a general solution to this question. This is the first time the connector specifically has broken, usually the wire inside the cord snaps.

Thank you for the reply! As far as the electrical danger goes, are you referring to the bad connector? For the second part are you referring to something like this https://www.amazon.com/Charging-Connector-Replacement-Lenovo-DC30100Q500/dp/B013DYOT4C/ref=sr_1_3?keywords=lenovo+power+connector&link_code=qs&qid=1553538765&s=gateway&sourceid=Mozilla-search&sr=8-3 ? Thanks for the reply! To clarify, are you suggesting I modify the adapter itself so that instead of the current cord coming from it, it has one of the cords you linked on digikey coming from it, and then I use one of those cords available on amazon so that even if the connector breaks I can replace it? Second possibility, is there a way to know if an adapter with a standard 7.7mm or 10mm barrel adapter on it, is compatible with my laptop then hook up one of those adapters from amazon too it?

Over the years I have had so many power cables break on me it is driving me insane! Below I have attached a picture of my current power cable. It has sticks in it wraped in electrical tape to prevent it from bending and breaking. (Later with the addition of blue duck-tape on the bottom part). This came after a long evolution of trying to stop cords from breaking, and failing. First I tried just wrapping a few layers of painters tape around the critical points (the part that plugs in, where the cord meets the adapter, etc.) That eventually failed, then I tried doing that but also detaching the bottom cable and carefully and painstakingly wrapping both cords so there are not any sharp bends and putting it in the container you see a bit of off to the left (lid on the right). That eventually failed as well, then I tried duck tape and being super carefull -- didnt work, then I tried electrical tape, worked ~better which brings us to modern day (after 7 years of cords breaking). The picture above is a picture of the cord when it was new (I had to purchase a replacement for my newer laptop, which I had too replace because alas the tape got too it too late. However a couple weeks ago I noticed I had to bend the end of the cord at a specific angle to power the computer: I thought the pin inside for the negative/positive lead was bending, or the power outlet was breaking, this was not the case, just yesterday this happened: I... CANT... WIN... So the cord itself is fine but it is now only a matter of time before the actual plug breaks. I am sick of paying for these cords I do my best to take good care of them, but all the laptops I have had (currently Lenovo Y700) have had the inexplicable design where the cord sticks horizontally out of the laptop and vertically out of the adapter. I am tired of my cords breaking and buying new ones (these days I can get knockoffs for 20$ but they used to be 60$ - 80$ for a replacement), it disrupts my school work, gaming/relaxation, personal projects, and its overall a pain. Does anyone know of an intelligently designed cord that I can replace this on with for a low price, or have any suggestions as to how to handle this issue. I have tried repairing them with not much success and thought it too risky to actually plug any in. Thank you - TFB