I've done it myself but with five 6-volt, 220 Ampere-hour totaling 30 volts. Batteries. It really does work. Naturally, though, they start losing power after 14 - 17 minutes of continuous welding using a 6013 or a 7018 welding stick. Good job! You did it like a boss!
Good vid. Thanks. Someone told me you have to limit the amps by using a resistor between the batteries (they said a coat hanger would work.) Is that right? Did you have to do that?
Years ago it was possible to buy special hand-pieces that were made for welding with car batteries. The electrode fastened to an iron plunger which was pulled back by a solenoid. There was also a spring and an adjuster knob. The back-EMF of the coil helped to keep the arc going and the movement of the solenoid plunger helped to stop the rod from sticking. You don't see these museum pieces for sale anymore but it would be interesting to know whether they actually worked.
Nice! So basically the welding rod functions as a resistor (that fails) and then melts, forming the weld! :) I've seen microwave transformers fitted to produce similar results but this actually looks a bit safer, as long as the batteries don't unintentionally short out
Awesome video. I have a three deep cycle battery bank in my e250-based overlander. I always carry a few rods. You can carry a $25 electrode holder (or even a vise grip like some guys said) to hold the rod more stable. I carry a pair of the old style welding goggles too. Never had to use it on the trail, but I’ve played around with it before trips to practice.
I'm here to look for a welding machine to use to weld fencing wire mesh with GI pipe supports in my estate where there is no electricity to prevent from thief. Now I find the solution with ur awesome technique. Thank u.
One improvement would be to clamp the welding rod into a vise grip, and then hook the jumper cable to the vise grip. Better connection at the rod and better performance.
Awesome clip mate. I spotted an Indian street mechanic in Goa on some travel blog do this. No welding helmet though, just some sunnies. The ingenuity of man... especially when you have to make do.
Great job, I was looking this up because I drew a bead when playing with a couple 250 watt sharp solar panels. now to get a stick and play around with it!
@ColtDeltaElite10mm No I have not tried those rods yet. I though the amperage would be to high so I went with the 7014 1/8 rod. Let me know if you do. Mark
Did anyone else notice that at first the positive end of the cable was connected to the table and frame, and the negative end was holding the welding rod, but after welding the negative was on the table and the positive was holding the welding rod?
My brother did this out of necessity as a one-off about 45 years ago. Probably plenty of others arrived independently to the same solution, but until know I'd never heard of anyone else doing it. Now, thanks to your post and TH-cam, many, many more people throughout the world can get themselves out of a pickle. Couple of points: My bro. had proper tongs and cables, just no mains electricity, so he had no problem with rod manipulation ( not saying you did:-)or burned hands! The weld went fine for him (he was a good welder with skilful hands, coded to ASME 9 ) maybe the thicker cables let him draw down more amps? I can't remember how many batteries he used all those years ago, but if , say 36 Volts is best, if you could scrape up another 3 and rig them in series-parallel would that enable you do draw more amps? Or maybe just four running at 24 V. I'd be worried about one or more of the cells plates burning through, though, so maybe your dabbing technique was a blessing in disguise?
Dear Mark, big fan of your work, ,which CCA is good for this work, 12volts each,can just 2 batteries in series do a good work, will that energy be sufficient,the weld rods, which size suits this power, what about a dry cell battery ?can the amp for each battery be more than 40A?, and can different battery brands can be used ?can batteries sustain for over 10 mins usage?sorry to ask so many questions, thank you, i await your suggestion :)
Great video. I've got a question. You said the setup is equivalent to about 120 amps, but aren't the batteries capable of outputting much more than 120 amps?
The gauge of the wire does act as a current limiting device, AKA a Resistor (See my Avatar!), the smaller the wire, the greater the limit. Something about a Direct Current in a conductor establishes a magnetic field that opposes the flow of the current, which is not present in AC Conductors because of the constant increase and collapse of the Flux Coils. Which produces "Skin effect," which means the current wants to flow on the surface of the conductor, and that means a wire can handle LESS Ac than it can DC. Now, in a DC Circuit, the magnetic opposition to the current flow isn't that great, per foot. BUT! When you got a lot of feet... And when you're calculating the feet for this, if you're determined to do the math, keep in mind it's a Round Trip: TO the load, and then back to the batteries. You're also probably losing a lot of energy to wasted heat in the cable, too, but over a long enough distance it can do that, between its ability to dissipate heat and limit the current.. If, however, you hooked up a one foot wire to a battery, and then shorted it out, no matter what gauge you use, it's going to be a very short-lived fuse. And possibly a blowed-up Lead Acid battery in our faces, OR WORSE. Is late, and been a long time since I dove into this level of Theory. I hope I didn't confuzzle you worse.
This man deserves a medal. A nobel prize. Now, if we were to have a Variac, or even a variable step transformer modulating the current, we could get real accurate welding. Heaven yes.
Hello. It is best not to use a battery with a lot of cold cranking amps. You will get to much amperage to weld with and it won't last long. The voltage will be to low with just two batteries. It would be hard to strike a arc with just 12 volts. Most welding machines put out around 54 volts. I use 3 deep cycle batteries and I weld 4 -1/8" 6013 or 7014 rods. I don't know about using a dry cell battery. If all you have is car batteries then to controll your amperage use longer jumper cables.
Thank you! here in Mexico, there is little to no chance to affording an inverter, 220v MIG or AC/DC stick (like Lincoln's Precision TIG or Hobart Stickmate). 12v batteries are my only option for welding with 7018 (not 7018 AC, for some reason they're not as cheap or accessible) and 6010. 7014 rods are never sold here and Weldingweb told me that they make very pretty welds. 12v batteries in Wal-Mart or AutoZone cost 100 dollars each, where as in the scrap yard, I can get one for 12 dollars.
Great stuff... As a avid 4x4 offroad guy...I will toss a couple rods in the tool kit and make a jumper wire....we already carry jumper cables anyway....thanks for the awesome video
okiedoak201 I’d throw a couple 2-3 in wide 8-12 pieces of plate in too. Those scabbing plates and this same set up held my drive shaft together to get from the trail to my trailer once.
Very nice mark learned it was very helpfull. Question Mark.....Any idea how many rods i can finish with this three batteries until they are dead cell and can I still recharge this battery after i used to weld?
I would not totally drain the battery unless I had no choice. I not sure how many rods you can burn, I have only done this for a quick fix out in the woods. I burned 5 rods with no problem.
At the beginning of the video you had the red (+) clamp on the welding piece and the black (-) clamp holding the welding rod. At the very end of the video your holding the red (+) clamp in your hand and the black clamp is on the item being welded. Which one goes where?
Are there any rods that would work ok with 24volts? I can see adding a second battery to my rig but 3 seems unrealistic. 4 wheeling alone I sure would like the option to weld if I break something.
I enjoyed your video. You mention that you're using the 7014 rod reverse polarity DC. I couldn't see the +- of your batteries but I would suggest using the 7014 rod straight polarity. Electrode negative. 7014 rod is AC/DC rod but runs better straight polarity. That may be what you did. Not sure.
Awesome! Wish I knew this one when I was in Iraq, might have saved some time in a few pinches we were in (call in for mechanics, wait for convoyed mechanics etc..)
I've been thinking of trying the batteries in my golf cart to weld, I did try just it for a second or 2, I think I want to try again maybe disconnecting the cart then just use 4 batteries x 8 V. = 32 maybe 34V total. Do you think I would hurt my batteries, they are Deep Cycle Lead Acid Battery. I have been playing around with the salt water type arc welder, use a 6011 rod 3/32 with a 10g. wires going to a 40A. breaker, tends to need a bit bigger breaker, I plan on doing a video once I get the system down a bit better. Thanks for your upload.
@@markp0177 Thanks. here is a little video I posted (unlisted) to TH-cam, I'll do a better video later explaining what I've learned. th-cam.com/video/U0zH0kiMNic/w-d-xo.html
Thanks for showing us how it is done. You never know when you may need this information. I imagine the jumper cable clamp gets pretty warm. Would that be an understatement? :) Thanks again.
Well kind of. You have to maintain a arc or a small cap and when the electricty jumps the cap it creates a lot of heat. Enough to melt the steel together.
This will work, but it will definitely destroy your batteries really fast for two reasons: 1. the lead acid battery is designed to supply reasonable amount of current, but if you over do it, the battery will over heat and get destroyed. 2: the car battery is not deep cycle meaning it is not designed to be emptied. If you do empty it however, you are reducing its life cycle dramatically. conclusion: don't do this for fun and only do it for emergency as the video stated.
You say it welds too hot. What about 4 batteries, two in series connected in parallel with 2 more in series? That would give you 24 volts instead of 36. Would that work?
markp0177 I tried this trick and nothing happened? I am using one deep cycle marine battery and an ATV battery and a lawn mower battery. I have it grounded and when I touch the rod to bare metal nothing happens.
Does this damage batteries? How many amps do I need to weld to 1/4 rebars together? My van has a single oversized 155 deep cycle 12v battery. My alternator is 160amps. With the engine running I am able to run 110v AC appliances at about 1500watts. I am wondering if I can use a 12v to 24v 480w buck converter to weld and somehow isolate my battery. Thanks.
No. Be carefull with a coat hanger it will melt. I used deep cycle batteries, that don,t have a lot of amps compared to regular batteries. Also I have long jumper cabels that help to restrict the amps. If you have too much amps you can use two sets of jumper cables
I am not off grid but I do charge a battery bank with solar panels. I only weld with battery's in places I can't get to with the welding machine. I am sure you could weld a little longer if the batteries are being charge with solar.
The negative end of the jumper cable was bad and would not easly hold the rod so I just switch both ends of the jumper cable. I am still welding with the negative side of the batteries.
When I go camping it's always deep in the mountains, the farther away from civilization the better. This is a good trick to know if I bust something on my truck or what not.
john miller Yes. The positive is hook to the table. It is called DC reverse. I am on a tv show called "America Unplugged" and I show this in my episode. It airs on July the 3rd on the sportsman channel at 7:00 central time.
Sorry another question by me, I did some more research on this and people said that these batteries might explode? Is this true or how can you control this hazard?
Lead acid batteries let off hydrogen gas that good explode if mix with the right amount of oxygen and ignited. Just put a piece of ply wood between you and the batteries. I closed my barn door a little to protect the batteries.
I'm just curious as to why connect the batteries in series as oppressed to parallel? Of course series will give you more voltage but parallel will boost up the amprage, which is what you would want to melt a material.
rob b that's right but it's the amprage that melts the compound not the voltage. It's like a river, voltage is the amount of water where as the amprage is the force at which the water moves. And in series the amprage stays the same where as in parallel it goes up. I think you might be able to do the same job with less batteries of its in parallel. I haven't tested this myself yet, probably will soon
hey hi man nice to see some cheap trick to get you out of the woods when your stuck hey I have a question does it make a difference if I weld with the positife clamp and put the ground to the frame nice vid bud anyway ill make sure I cary an extra batterie so I have 2 or 3 batterie to weld just in case good vid man take care
You could try making a stableizer out of a coil of wire and if your are going out on the trail use either a 6010 or 6011. They dig deep and will get you back to where you want to be.
You have to strike a arc, it is like striking a match then you must maintain a gap. You will not get electrocuted but if your gloves are wet you will get a small tingle.
I've done it myself but with five 6-volt, 220 Ampere-hour totaling 30 volts. Batteries. It really does work. Naturally, though, they start losing power after 14 - 17 minutes of continuous welding using a 6013 or a 7018 welding stick. Good job! You did it like a boss!
Good vid. Thanks. Someone told me you have to limit the amps by using a resistor between the batteries (they said a coat hanger would work.) Is that right? Did you have to do that?
Man, you ROCK TO THE MAX! This is a very useful idea to us 'shade tree' mechanics! Thanks a bunch for showing this to the world.
Years ago it was possible to buy special hand-pieces that were made for welding with car batteries. The electrode fastened to an iron plunger which was pulled back by a solenoid. There was also a spring and an adjuster knob. The back-EMF of the coil helped to keep the arc going and the movement of the solenoid plunger helped to stop the rod from sticking. You don't see these museum pieces for sale anymore but it would be interesting to know whether they actually worked.
Check out my other videos on how to make your own solar panel. I also have a video on my homemade hydro generator. It only turns 170 RPMs
Nice! So basically the welding rod functions as a resistor (that fails) and then melts, forming the weld! :) I've seen microwave transformers fitted to produce similar results but this actually looks a bit safer, as long as the batteries don't unintentionally short out
Nice informative video you made. Thanks for using the filter so I could see.
Awesome video. I have a three deep cycle battery bank in my e250-based overlander. I always carry a few rods. You can carry a $25 electrode holder (or even a vise grip like some guys said) to hold the rod more stable. I carry a pair of the old style welding goggles too. Never had to use it on the trail, but I’ve played around with it before trips to practice.
@ColtDeltaElite10mm Thanks for the info. dc neg welds a little smoother and the batteries amperage was a little hot. Mark
I'm here to look for a welding machine to use to weld fencing wire mesh with GI pipe supports in my estate where there is no electricity to prevent from thief. Now I find the solution with ur awesome technique. Thank u.
One improvement would be to clamp the welding rod into a vise grip, and then hook the jumper cable to the vise grip. Better connection at the rod and better performance.
Vice grip engineering is third world countries best friend.
Wow! I have always wondered about using batteries and you showed us how! Thanks! Well done!
Awesome clip mate. I spotted an Indian street mechanic in Goa on some travel blog do this. No welding helmet though, just some sunnies. The ingenuity of man... especially when you have to make do.
I switch it at the batteries too. The positive lead of the jumper cable held the rod better than the neg. I was still welding with DC reverse.
Broda I like the video...it was nice and short, quick to the point..hope to see more stuff
very good tip mark for an emergency situation (a Very Good Tip Indeed).
That was good info. Thank you for the help. Take Care, Del
Great job, I was looking this up because I drew a bead when playing with a couple 250 watt sharp solar panels. now to get a stick and play around with it!
@ColtDeltaElite10mm No I have not tried those rods yet. I though the amperage would be to high so I went with the 7014 1/8 rod. Let me know if you do. Mark
Awesome thanks for this! Gonna keep a set of cables in my truck for exactly this.
Mark , great video as usual.I have learned a lot of neat tricks from your video's, keep up the good work.
Did anyone else notice that at first the positive end of the cable was connected to the table and frame, and the negative end was holding the welding rod, but after welding the negative was on the table and the positive was holding the welding rod?
He must have switched polarity. His power source is DC so yes it does affect the weld. Some rods are designed to be used with certain polarity.
I saw another video. he ground the positive and weld by negative it calls ( DC electric negative welding)
Polarity should be positive ground
My brother did this out of necessity as a one-off about 45 years ago.
Probably plenty of others arrived independently to the same solution, but until know I'd never heard of anyone else doing it.
Now, thanks to your post and TH-cam, many, many more people throughout the world can get themselves out of a pickle.
Couple of points:
My bro. had proper tongs and cables, just no mains electricity, so he had no problem with rod manipulation ( not saying you did:-)or burned hands!
The weld went fine for him (he was a good welder with skilful hands, coded to ASME 9 ) maybe the thicker cables let him draw down more amps?
I can't remember how many batteries he used all those years ago, but if , say 36 Volts is best, if you could scrape up another 3 and rig them in series-parallel would that enable you do draw more amps?
Or maybe just four running at 24 V.
I'd be worried about one or more of the cells plates burning through, though, so maybe your dabbing technique was a blessing in disguise?
I must say i never knew this was possible. Thanks for sharing this, now I need to try it ;)
Dear Mark, big fan of your work, ,which CCA is good for this work, 12volts each,can just 2 batteries in series do a good work, will that energy be sufficient,the weld rods, which size suits this power, what about a dry cell battery ?can the amp for each battery be more than 40A?, and can different battery brands can be used ?can batteries sustain for over 10 mins usage?sorry to ask so many questions, thank you, i await your suggestion :)
Great video. I've got a question. You said the setup is equivalent to about 120 amps, but aren't the batteries capable of outputting much more than 120 amps?
Yes the batteries are capable of putting out more but the size and length of the jumper cable seems to limit to around 100 amps.
The gauge of the wire does act as a current limiting device, AKA a Resistor (See my Avatar!), the smaller the wire, the greater the limit.
Something about a Direct Current in a conductor establishes a magnetic field that opposes the flow of the current, which is not present in AC Conductors because of the constant increase and collapse of the Flux Coils. Which produces "Skin effect," which means the current wants to flow on the surface of the conductor, and that means a wire can handle LESS Ac than it can DC.
Now, in a DC Circuit, the magnetic opposition to the current flow isn't that great, per foot. BUT! When you got a lot of feet... And when you're calculating the feet for this, if you're determined to do the math, keep in mind it's a Round Trip: TO the load, and then back to the batteries.
You're also probably losing a lot of energy to wasted heat in the cable, too, but over a long enough distance it can do that, between its ability to dissipate heat and limit the current.. If, however, you hooked up a one foot wire to a battery, and then shorted it out, no matter what gauge you use, it's going to be a very short-lived fuse. And possibly a blowed-up Lead Acid battery in our faces, OR WORSE.
Is late, and been a long time since I dove into this level of Theory. I hope I didn't confuzzle you worse.
You can also do 'spot' welding with batteries but u must make a very big foot pedal type of switch to quickly turn it on and off .
Well done...!!!
Best wishes from Bavaria / Germany. :-)
This man deserves a medal. A nobel prize. Now, if we were to have a Variac, or even a variable step transformer modulating the current, we could get real accurate welding. Heaven yes.
Hello. It is best not to use a battery with a lot of cold cranking amps. You will get to much amperage to weld with and it won't last long. The voltage will be to low with just two batteries. It would be hard to strike a arc with just 12 volts. Most welding machines put out around 54 volts. I use 3 deep cycle batteries and I weld 4 -1/8" 6013 or 7014 rods. I don't know about using a dry cell battery. If all you have is car batteries then to controll your amperage use longer jumper cables.
Thank you! here in Mexico, there is little to no chance to affording an inverter, 220v MIG or AC/DC stick (like Lincoln's Precision TIG or Hobart Stickmate). 12v batteries are my only option for welding with 7018 (not 7018 AC, for some reason they're not as cheap or accessible) and 6010. 7014 rods are never sold here and Weldingweb told me that they make very pretty welds. 12v batteries in Wal-Mart or AutoZone cost 100 dollars each, where as in the scrap yard, I can get one for 12 dollars.
Thanks for the upload from Vermont, USA! :)
thank you this was very informative - in an emergency - i can really see this being useful
Great stuff...
As a avid 4x4 offroad guy...I will toss a couple rods in the tool kit and make a jumper wire....we already carry jumper cables anyway....thanks for the awesome video
okiedoak201 I’d throw a couple 2-3 in wide 8-12 pieces of plate in too. Those scabbing plates and this same set up held my drive shaft together to get from the trail to my trailer once.
Very nice mark learned it was very helpfull. Question Mark.....Any idea how many rods i can finish with this three batteries until they are dead cell and can I still recharge this battery after i used to weld?
I would not totally drain the battery unless I had no choice. I not sure how many rods you can burn, I have only done this for a quick fix out in the woods. I burned 5 rods with no problem.
At the beginning of the video you had the red (+) clamp on the welding piece and the black (-) clamp holding the welding rod. At the very end of the video your holding the red (+) clamp in your hand and the black clamp is on the item being welded. Which one goes where?
You weld with the negative side and put the positive side on your work
markp0177
Why didn't you say that in the first place. I am trying to follow you here.
I was just going to mention this. The negative seems to be grounding his metal in the end and the positive in his hand. This is not how it started.
Are there any rods that would work ok with 24volts? I can see adding a second battery to my rig but 3 seems unrealistic. 4 wheeling alone I sure would like the option to weld if I break something.
I enjoyed your video. You mention that you're using the 7014 rod reverse polarity DC. I couldn't see the +- of your batteries but I would suggest using the 7014 rod straight polarity. Electrode negative. 7014 rod is AC/DC rod but runs better straight polarity. That may be what you did. Not sure.
thanks 4 the info brother it will come in handy when my mower decks
I don't know where you get this stuff from man. Good job
Awesome!
Wish I knew this one when I was in Iraq, might have saved some time in a few pinches we were in (call in for mechanics, wait for convoyed mechanics etc..)
It's pretty incredible that you're able to use a 1/8 rod, and a 7014 at that...
thanks for that video thats what i was looking for. not trying to build a science project.
I've been thinking of trying the batteries in my golf cart to weld, I did try just it for a second or 2, I think I want to try again maybe disconnecting the cart then just use 4 batteries x 8 V. = 32 maybe 34V total. Do you think I would hurt my batteries, they are Deep Cycle Lead Acid Battery. I have been playing around with the salt water type arc welder, use a 6011 rod 3/32 with a 10g. wires going to a 40A. breaker, tends to need a bit bigger breaker, I plan on doing a video once I get the system down a bit better. Thanks for your upload.
It won't hurt your batteries. You have it right to use 4- 8 volt batteries with a 3/32 rod.
@@markp0177
Thanks. here is a little video I posted (unlisted) to TH-cam, I'll do a better video later explaining what I've learned.
th-cam.com/video/U0zH0kiMNic/w-d-xo.html
Does it matter which cable becomes ground, & which one you put the welding rod in?
I put the negative to the welling rod.
Thanks for showing us how it is done. You never know when you may need this information. I imagine the jumper cable clamp gets pretty warm. Would that be an understatement? :) Thanks again.
Well kind of. You have to maintain a arc or a small cap and when the electricty jumps the cap it creates a lot of heat. Enough to melt the steel together.
Where do you live?
Are you not damaging the batteries? Are they not effectively short circuited?
try putting your electrode in a pair of vise grips then hooking g the cables to the vise grips ,it makes it easier to hold
Nice demonstration. Guys.
I am not sure how long you can weld. I think you can weld several rods so you will only be welding for minutes not hours.
This will work, but it will definitely destroy your batteries really fast for two reasons:
1. the lead acid battery is designed to supply reasonable amount of current, but if you over do it, the battery will over heat and get destroyed.
2: the car battery is not deep cycle meaning it is not designed to be emptied. If you do empty it however, you are reducing its life cycle dramatically.
conclusion: don't do this for fun and only do it for emergency as the video stated.
You say it welds too hot. What about 4 batteries, two in series connected in parallel with 2 more in series? That would give you 24 volts instead of 36. Would that work?
+Ronald Greene It is hard to strike a arc with just 24 volts. To lower your amperage just use a longer jumper cable. 6013 rod works the best too.
markp0177 I tried this trick and nothing happened? I am using one deep cycle marine battery and an ATV battery and a lawn mower battery. I have it grounded and when I touch the rod to bare metal nothing happens.
Clean the metal with a wire brush because it sounds like you dont have proper contact between + and - and check you hooked the batteries up in series.
Does this damage batteries? How many amps do I need to weld to 1/4 rebars together? My van has a single oversized 155 deep cycle 12v battery. My alternator is 160amps. With the engine running I am able to run 110v AC appliances at about 1500watts. I am wondering if I can use a 12v to 24v 480w buck converter to weld and somehow isolate my battery. Thanks.
It does not harm the batteries. Three 12 volt batteries in series will give you enough power to weld 1/4" rebar. A 480 watt inverter will not work.
@@markp0177 480 amps (not watts).
@@12vLife You only need 90 amps to weld.
Thanks Dear Mark you are the best, great help, i appreciate it, i love your work and wish you the best always, take care :)
just a thought if you use a pair of vise grips to hold the rod it works alot better the rod feels more secure in your hand
It Is more secure but won't you then need to fasten the vise grip to the
jumper cable?
No. Be carefull with a coat hanger it will melt. I used deep cycle batteries, that don,t have a lot of amps compared to regular batteries. Also I have long jumper cabels that help to restrict the amps. If you have too much amps you can use two sets of jumper cables
that is really useful information. thank you for sharing.
I was wondering if you were off grid and had solar panels connected to the batteries if it would work a little better or longer welding time???
I am not off grid but I do charge a battery bank with solar panels. I only weld with battery's in places I can't get to with the welding machine. I am sure you could weld a little longer if the batteries are being charge with solar.
@@markp0177 I also was thinking that welding with batteries alone would stress them, having panels attached should I buffer that a little.
with 3 of them fully charged..how many hours or minutes we can weld?
ingenious... intuitive... educational. Good job ;-)
The negative end of the jumper cable was bad and would not easly hold the rod so I just switch both ends of the jumper cable. I am still welding with the negative side of the batteries.
Yes you can use 3 sets of jumper cables and keep the batteries in the car.
Yes the negative was the electrode.
In a coal mine we use batteries to weld all the Time we have a big resistor to limit the current it can be taped to different spots for different amps
When I go camping it's always deep in the mountains, the farther away from civilization the better. This is a good trick to know if I bust something on my truck or what not.
Nice info shared in this video, totally practical..
Great vid well presented, good day to you sir.
was the welding rod hooked to positive or negative jumper cable when you actually welded?
The negative.
markp0177
with the positive hooked to table?
john miller Yes. The positive is hook to the table. It is called DC reverse. I am on a tv show called "America Unplugged" and I show this in my episode. It airs on July the 3rd on the sportsman channel at 7:00 central time.
i dont think it matters.... you just have to shortcircuit them
markp0177
Electrode negative is strait polarity.
Sorry another question by me, I did some more research on this and people said that these batteries might explode? Is this true or how can you control this hazard?
Lead acid batteries let off hydrogen gas that good explode if mix with the right amount of oxygen and ignited. Just put a piece of ply wood between you and the batteries. I closed my barn door a little to protect the batteries.
Oh okay, Thank you, :)
Can you do this while the 3 car batteries are installed in their respective Vehicle and all of them have the motor running?
I'm just curious as to why connect the batteries in series as oppressed to parallel? Of course series will give you more voltage but parallel will boost up the amprage, which is what you would want to melt a material.
Its hard to strike and maintain a arc with just 12 volts but it can be done in a pinch.
in series raises the voltage.. parallel does not.. you would still only have 12v
rob b that's right but it's the amprage that melts the compound not the voltage. It's like a river, voltage is the amount of water where as the amprage is the force at which the water moves. And in series the amprage stays the same where as in parallel it goes up. I think you might be able to do the same job with less batteries of its in parallel. I haven't tested this myself yet, probably will soon
hey hi man nice to see some cheap trick to get you out of the woods when your stuck hey I have a question does it make a difference if I weld with the positife clamp and put the ground to the frame nice vid bud anyway ill make sure I cary an extra batterie so I have 2 or 3 batterie to weld just in case good vid man take care
It is easer to weld with DC reverse " the negative side"
learn something new every day thx
Thank you my friend youve warmed me up
are the same flashlight batteries and car batteries ? can we do this with 25 flashlight batteries 1.5 volt ??
No I don't think you will have enough amperage to weld with.
now i know what to do when the zombies invade, and i need to weld the hull of ma boat.
Aluminum hull?
as always, good useful info, thanks.
Good deal! keep the video's coming
How long can you weld using 1/8" stick for example before you lose enough heat where you cant ?
+Cruusher I am not sure, it depends on the batteries. I have welded several rods with no problem.
I know you can run a peanut grinder off a stinger whip. Hooked up on a welding rig DC of course. May not be good for it but it will work....lol
I've actually seen this done for real in Africa for stitching farm equipment back together. Genius I think!
Mark, someone is using the pic for this video as clickbait on Facebook. It is advertising a technique to revive dead batteries...LOL
will it be ok to use for welding of chaissi of motorcycle
Shouldn’t u have the rod on the negative? And positive on the piece your grounding. DC welding
That's pretty cool.
Does this damage the batterys at all or render them unsteady
No, it is pulling less power than starting your car.
how long can work? and how many amperes must be in order for it work
I have burned several welding rods, not sure how many rods I could have burned. You only need around 90 amps to weld.
So could a single battery run those tiny 1/16” rods?
Maybe, I would try it if it was my only choice.
That is amazing... Is there any chance a battery could explod
Pretty damn cool man!
Pretty good to remember incase of emergency xD
You could try making a stableizer out of a coil of wire and if your are going out on the trail use either a 6010 or 6011. They dig deep and will get you back to where you want to be.
Hi Mark, Been there and done that, It's a McGiver kind of thing. >Joe
how did you start off the weld? and is it possible to get electrocuted with it ?
You have to strike a arc, it is like striking a match then you must maintain a gap. You will not get electrocuted but if your gloves are wet you will get a small tingle.
Thank you :) This is very helpful because i really need a welder :)
It would be hard to strike a arc with just 24 volts, It hard with 36 volts. Maybe a 3/32 - 7014 rod.
The table is made out of metal. The other cable is attached to the work and the table.
Yes I switch on the batteries too.
What do you do with the coat hanger?
Yes 6 volt deep cycle batteries work the best.