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Welding with batteries?

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Paul Janke

03-30-2003 15:14:12




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I have two group 4D batteries which I hooked in series for 24 volts. I tried to weld with this using positive for ground, negative for the electrode. I tried 1/8" 6011 rod. It didn't work well enough to weld with. Anybody know why it won't work? Is the voltage too low? I thought 24 volts was about what a welder ran at. There's plenty of amperage, because when I tried 3/32" 6013, it nearly melted when I stuck the rod trying to strike the arc. I mostly wondered if it would work, but could occasionally use it if it would. Is it not working because of having constant voltage and varying amperage? I have no doubt one or more of you knows the answers. Thanks in advance.

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Bill 52 8n

04-03-2003 22:19:24




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 Re: Welding with batteries? in reply to Paul Janke, 03-30-2003 15:14:12  
Reverse your polarity, 6011/6010 runs off of DC reverse (electrode positive).

Bill



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Mark

04-01-2003 03:58:51




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 Re: Welding with batteries? in reply to Paul Janke, 03-30-2003 15:14:12  
Two 12V batteries in series is 24v open circuit, but it drops when you strike the arc. That's a little low to maintain an arc. I've welded with 2 batteries, but it's tough. Three would work fine. The batteries shouldn't need an inductor, and the closest to it would be a constant current power supply. Go to www.diywelder.com and ask about battery welding if you want more info.



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rhudson

03-31-2003 06:30:12




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 Re: Welding with batteries? in reply to Paul Janke, 03-30-2003 15:14:12  
I think you need an inductor inline with the batts to regulate current flow. in welding terms, i think its called a reactor coil. sorry buts thats the limit of my knowledge. Mother earth news had an artilce and plans for battery welding years ago.



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John Ne.

03-30-2003 19:35:13




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 Re: Welding with batteries? in reply to Paul Janke, 03-30-2003 15:14:12  
Have heard of using batteries in a forklift,, 36 or 48 volts,,, and dc rod, the forklift was always handier in the plant, than was a welder on wheels. john



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captain,N/E Mo.

03-30-2003 19:24:37




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 Re: Welding with batteries? in reply to Paul Janke, 03-30-2003 15:14:12  
you need around 40 volts.



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FRED

03-30-2003 19:11:47




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 Re: Welding with batteries? in reply to Paul Janke, 03-30-2003 15:14:12  
Try using neg. for ground and 1/8 6010 or 3/32 7018.



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Mike W

03-30-2003 20:09:32




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 Re: Re: Welding with batteries? in reply to FRED, 03-30-2003 19:11:47  
Arc welding needs a constant current power supply. The open circuit voltage is 50 to 80 and drops when the arc is struck. The batteries would work as a supply for mig welding. That requires a constant voltage power supply.



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