Sunantoro,
By connecting three batteries of larger amperage say 60, we can make our own
light duty welding tool.
I'm not sure I would want to use batteries for welding. First off I don't think a 60 Amp capacity is
enough. Secondly lead acid batteries produce hydrogen. Can you say 'Hindenberg' boys and girls? To be
honest, I have never had a need to do any arc welding so I have never investigated that option.
Jim