How to Make a Spot Welding From a Microware Oven Transformer

As in the last video, I bought a mini battery cell solder circuit. But the result was not as expected.
Therefore, I made myself a spot welder to solder new battery cells.
* List of main components:
1- Microwave oven transformer 900W
Find it at local shop
2- Timer NY-D01 BTA100
sea.banggood.com/custlink/vDv...
3- Power cord M35
Find it at local shop
4- Transformer 9V~12V AC
sea.banggood.com/custlink/KGD...
5- Welding hand balance force
sea.banggood.com/custlink/3GK...
6- Box (I use wine bottles)
7- DC connector 2.5mm
sea.banggood.com/custlink/DmG...
8- Wires with different sizes
sea.banggood.com/custlink/3GD...
9- Nickel Strip
sea.banggood.com/custlink/GGG...
!!! DO NOT COPY & REUP !!!
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[@hasger1941]

hello how many wire turn to use 2 only ?

[@GoldScrew]

Yes. Only 2 wires!
You can check the diagram in this video.