You need a short length of twin wire house wiring cable ...I used some twin 4mm square (each wire 4square mm)...thicker wire would be better ,but eventwin 2.5mm square might be OK ..
Removethe plastic insulation from one end,Only 10mm ...so now you have the cable with two wires protruding 10mm ..file the two wires into a more pointed shape in such a way that the points are as closetogether as possible ....now we have the plastic cable with two pointed wires protruding , held the correct distance apart by the plastic insulation, these are the electrodes ....
Connect the other end of the cable to the power source... I used 3s20p ... but I expect 2s20p would work .. perhaps even one 80p
That's it ...now place the nickel strip on the cell ...put the electrodes firmly on top... flash ...bang , it's done ... I get a much firmer welded than the commercial ones in videos I've seen .... I may have too much current ...
I did experiment with switching the current with a motor bike starter relay , but found it to be better not to have this ...just push the electrodes firmly , and pull away when the spots glow red hot.
Removethe plastic insulation from one end,Only 10mm ...so now you have the cable with two wires protruding 10mm ..file the two wires into a more pointed shape in such a way that the points are as closetogether as possible ....now we have the plastic cable with two pointed wires protruding , held the correct distance apart by the plastic insulation, these are the electrodes ....
Connect the other end of the cable to the power source... I used 3s20p ... but I expect 2s20p would work .. perhaps even one 80p
That's it ...now place the nickel strip on the cell ...put the electrodes firmly on top... flash ...bang , it's done ... I get a much firmer welded than the commercial ones in videos I've seen .... I may have too much current ...
I did experiment with switching the current with a motor bike starter relay , but found it to be better not to have this ...just push the electrodes firmly , and pull away when the spots glow red hot.