soldering bat s

Viewing 6 reply threads
  • Author
    Posts
    • #11858
      RacerX
      Participant
      • Posts: 117

      I m trying a tri cell mod right now but I ve cant seem to get the solder to stick

      I ve just tryed puting a drop of superglue on it after the solder cools works ok but one wire cames off, and whn I tryed to resolder it the damn fumes nearly burnt my eyes out,I think I have invented a new tear gas. So are there any less toxic ways??

    • #47419
      brendan
      Participant
      • Posts: 377

      before for u solder a battry rub it with a file or some sand paper.then the solder will stick

    • #47421
      Admin
      Participant
      • Posts: 5952

      i make one giant X aross the batery termina…works like magic

    • #47425
      RacerX
      Participant
      • Posts: 117

      I found something else out superglue does not conduct so the batts stop working

    • #47437
      jamiekulhanek
      Participant
      • Posts: 2563

      Racer X, I posted a tutorial on this some time mid last year. It has since disappeared.

      Soldering theory:

      To solder a battery successfully, it i not enough to “drip” solder onto the contact on the battery.

      For solder to bond with a surface, both the surfaces (wire and battery) need to reach the same temperature. Atleast 250 Degrees Celsuis.

      The way you are soldering, is such that the wire is reaching 250+ Degrees Celsius, but you are not giving any time for the cell contact to heat up. It takes time!

      How to solder cells:

      First, tin the wires (using solder)

      Then, solder a blob of solder onto the cell, hold the iron on until the solder flows across the cell as you add more solder.

      Wasting no time, older the wire onto the pre soldered cell, leave till the solder sets, then cool the cell with an icepack to prevent internal damage.

      Tips:

      -Using sandpaper, prep the cell surface so it has a rough surface for the solder to stick to.

      -Clean the contact of the battery

      – Use a high wattage iron, that i very hot, this is so you get teh cell done quickly. A small low wattage iron will take longer, and exposing the cell to long duration heat can damage it, better to use more heat for less time.

      -Always clean and Re-Tin the iron tip after every solder joint.

      -Good Luck!!!

    • #47521
      PandaBear
      Participant
      • Posts: 1866

      A 25W iron is probably enough for those little cells. (I bought an 80W for sub-C cells and it works great – but more due to it having enough thermal mass to keep the heat high on contact.)

      You need to leave the iron on for a few secs to
      get the surface hot enough to melt the solder
      and you can watch the solder “flow”.

      If your solder only “blobs” then the surface is
      not hot enough to melt the solder.

      But don’t leave it on for long long time, you’ll
      be cooking the cell and boiling off the innards.

    • #47528
      RacerX
      Participant
      • Posts: 117

      Doesn’t matter any more I killed the streeing in the process but thankx for the tips everyone it worked for a little while ( never know might beable to fix it )

Viewing 6 reply threads
  • You must be logged in to reply to this topic.