How am I supposed to soldering this? I have both soldering iron and a spool of solder. But most videos show soldering wires instead of what I need as you can see in the picture (disconeted cable on a laptop charger). I would higly appreciate any info and tutorial videos on this.

Edit: Video https://streamable.com/zeu6gm

      • LemmyPlay@lemmings.world
        1·
        1 year ago

        It’s definitely possible to repair, the question is whether solder is sufficient, and if so, what kind of solder and what are the risks. It looks like it’s 220V and I have never soldered anything but low voltage DC. A bad solder could mean high resistance->heat->fire though it’s out of my expertise to speculate further.

        Here’s what I would do. Find a quality power connector from an electronic device someone is throwing out, and cut it off leaving some excess cable (Or buy online if money isn’t an issue). Then, cut off the ‘faulty’ connector on your device. Solder or crimp together the replacement connector with the existing charger wires. Bonus: Use heat shrink tubing to provide a safe insulated secure connection (1 for the + wire, 1 for the - wire, and 1 larger one to go over both +/- wires as the external jacket). This should give you the most elegant repair. The heat shrink acts to slightly as a mechanical load distributor, so you don’t stress the crimp connectors or solder when moving the charger around.

  • flathead@lemm.ee
    6·
    1 year ago

    it’s hard to make out the photo solder flows towards the heat. Get a little solder onto each surface that you need to join, put it together and briefly touch them together before letting the solder fuse. You just need a solid connection electrically - soldering isn’t welding! So just a little solder, don’t go crazy, keep a cloth on hand to wipe off any excess solder. It will be a lot easier if you have some way to hold it in place while you solder - alligator clips are good for this. Tin the iron with solder, get it nice and hot then drop a little on each end, put together and apply the iron to fuse them while they are held in place - you can use your fingers to hold it for about 10 seconds while it cools but the wire will get hot, so keep fingers back from the connection point.

    • Eufalconimorph@discuss.tchncs.de
      4·
      1 year ago

      Don’t forget to add flux to the joint! Especially for large ones like a charger, the “flux core” isn’t going to be enough. That core is just to keep the flux present as the solder flows, it won’t help remove the oxide layers from the surfaces before starting.

      And use a temperature-controlled iron if possible. Much more likely to work properly, less likely to destroy the board by lifting a pad. 350°C should be plenty for most solder alloys.

      • flathead@lemm.ee
        2·
        1 year ago

        You have a fair bit of room inside that plug, you can’t really go wrong unless you let stuff overheat. see if you can get a little solder on the top of the plug joint, then a little on the wire - then hold them together and apply the iron for 3-4 seconds. Assuming the iron is hot enough, that should be enough to melt them together. It’s intimidating at first, just take your time. it only takes a few seconds to get things hot enough to melt the solder, so don’t leave the iron on anything longer than about 5 seconds - once the solder starts to run, remove the heat and it will fuse as it cools. try to stay away from the plastic housing, obviously - but it wont matter if you accidentally touch the iron to the plastic - the only way you can screw this up is to get the pin too hot so that it melts the plastic housing - you would have to leave the iron on it for longer than 5 seconds for that to happen. look at the other joint. You’re trying to get it to look like that. It looks doable.

  • Crashumbc@lemmy.world
    1·
    1 year ago

    That looks like a broken single piece. You might be able to get soldered. (See other guys post for the way to do it) but to be honest it probably won’t last if holds at all.

    I’d check e-bay for the whole connector piece. It looks designed to be easily replaced. I bet it comes with wires. What’s on other end of wires? At worse, you solder splice the wires for something a lot stronger.

    Edit: another other option. It looks hollow? If so, cut the broken end piece off wire completely. Strip the wire and slide it the hole directly. (May have to strip it down to fit) this would be much better than soldering the nub back on.