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24th Aug 2019, 09:07 PM #46Philomath in training
- Join Date
- Oct 2011
- Location
- Norwood-ish, Adelaide
- Age
- 59
- Posts
- 6,561
If someone showed me that weld and asked what is wrong, the first thing I would say is that all that spatter suggests the current is too high. I have heard stories about people doing battery welding and using a bit of fencing wire to add some resistance to the circuit. Did you have anything like that or were you just using jumper leads direct on the battery?
Michael
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24th Aug 2019, 10:23 PM #47Most Valued Member
- Join Date
- Aug 2011
- Location
- Melbourne
- Posts
- 4,779
Hi Michael,
I used jumper leads direct to the battery. I must say it felt the opposite. It was very hard to start an arc and even harder to maintain. It gave me the impression of a lack of current.
SimonGirl, I don't wanna know about your mild-mannered alter ego or anything like that." I mean, you tell me you're, uh, super-mega-ultra-lightning babe? That's all right with me. I'm good. I'm good.
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24th Aug 2019, 11:01 PM #48
Simon, were the electrodes you used 6013? Many other electrodes need higher open circuit voltage than 24 or 26V....
Its the voltage that starts the arc. Voltages as low as 16 or 17 will then maintain the arc. If the current was actually too low (I doubt it, like Michael), then the batteries are no good. You should easily get the 60-90A you need for 2.5mm sticks.
Try 3.2mm electrodes and see how it looks with good batteries.
I've tried it a few years ago and it felt no different than a DC welder....
Sent from my GOME 2017M27A using TapatalkCheers, Joe
retired - less energy, more time to contemplate projects and more shed time....
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26th Aug 2019, 09:19 AM #49Most Valued Member
- Join Date
- Aug 2011
- Location
- Melbourne
- Posts
- 4,779
Hi Joe,
Yes, I used 6013 electrodes, which are my general purpose electrodes I used for "everyday"
The batteries are good. One was my starting battery, in really good nick and the other is my second or auxillary battery. Both in the car and always kept charged with a dual battery management system.
I honestly think it's the leads. I will have another play but right now I got bigger fish to fry. The injectors in my car need replacing. After 320,000Km I guess I got my moneys worth.
SimonGirl, I don't wanna know about your mild-mannered alter ego or anything like that." I mean, you tell me you're, uh, super-mega-ultra-lightning babe? That's all right with me. I'm good. I'm good.
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30th Aug 2019, 07:56 PM #50Most Valued Member
- Join Date
- Aug 2009
- Location
- Sydney, NSW, Australia
- Posts
- 1,844
Some smart cookie will catch on soon and invent a lithium polymer battery pack that u can weld from may have 10mins to 20mins welding time but can u imagine the portability and the amount of sticky situations it would get 4x4wd drivers out of? the radio control battery's hold really good capacity too so its only a matter of time before someone brings something like this to the market
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30th Aug 2019, 09:22 PM #51Pink 10EE owner
- Join Date
- Aug 2008
- Location
- near Rockhampton
- Posts
- 6,218
They already have.
Gold, the colour of choice for the discerning person.
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1st Sep 2019, 09:18 AM #52Diamond Member
- Join Date
- Mar 2014
- Location
- South of Adelaide
- Posts
- 1,227
Fronius does one. You can weld about 6 rods on a charge.
https://www.fronius.com/en/welding-t...mma/accupocket
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