One question-- how did you get the top set of 2 batteries free from their plastic holder (the set of two just forward of the on/off switch)? Every way try seems like it will break the plastic holder. Do you remember how you did it?

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The Manufacturer/Seller of these Machines claim they work fine on Anti-Jammer Circuits or at 63Amps Fused Power Lines.

A friend of my told me that his son had the same problem at home with his 1500 Watts PC Power supply when it was switched on.
And he says it was solved by changing the Automated Power Line Fuse to a Slow type.

So I will find out if I can do that myself too? Maybe some of you Jestine Blog readers had the same problem and how to solve it? Else this will warn anyone for this problem before he buys one Spot Welder too.

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I've seen this video of the link you mentioned and others too, Mark. Look for instance on the subject "iron melter". That also is made with an old Microwave Transformer. It is a very impressive video on YouTube. And not dangerous to make or use since the HV secundary is removed and replaced by a very thick koper wire of a few windings that only gives a few volts but an amperage of upto 1000 Amps!! Only the fast melting iron or other melting objects are extremely hot and therefore extremely dangerous!!
But because I want to repair my own Laptop Battery and 3 others from my brother soon, I just have bought a 1.9KW 709a+ Spot Welder, that also has a solderstation integrated to save Desktop space on the working Table.

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Hey Albert,
You must have read my mind! I have read about the capacitor welders, but they seem to lack the current required for a decent weld, from what I have seen.
I have several microwave transformers that I have managed to save from landfill and am keen to see if I can make a successful spot welder.
Another job on the list.........
Here's a video for a basic welder. I'm sure there are many modifications that could be done to make it more adaptable.
https://www.youtube.com/watch?v=vrlvqib94xQ

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Hey Arthur,
Are you asking about the actual operation or repair of inverters? Here is a quick video that gives some advantages of an inverter welder.
https://www.youtube.com/watch?v=996DW4T8IXI

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Hey Humberto,
That was the main reason for the repair. Yes I could have bought a new unit, but I prefer to save money & to save rubbish from landfill.
My main priority is to get into the good books with my wife :), which is always a good thing!!
I'm glad that the repair has encouraged so many positive comments that will help us all next time we do a similar repair.
I also wanted to see how long these 'MORE POWER' batteries last in comparison with the originals.

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Thanks Gerald,
I did feel fairly confident soldering NiMH batteries and would think twice soldering LiIon ones though. As I stated, once I go my method correct, there was very limited soldering time and the batteries could be touched by finger almost straight away. I am happy with the result, but only time will tell if the lifespan will be shortened.

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Thanks for the article Albert.
Fortunately I used NiMH batteries, but will keep this in mind if I use LiIon batteries in the future.
I will have to do some more research on using a capacitor for a spot welder.
Thanks for all the advice - we never stop learning!

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