[chbot] Battery spot welder

Marshland Engineering marshland at marshland.co.nz
Tue Jun 1 22:02:02 BST 2021

I've got heaps of old batteries. Some may be worth recycling.  There are many
types and brands of spot welders on Aliexpress. There seem to be 3 options,
battery, supercap or mains with a microwave transformer. Can anyone recommend
one, or, a good reliable method including what probes to use. 

Thanks Wallace

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