How to Make Battery Spot Welder || New Capacitor Welding DIY
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- Опубліковано 5 жов 2024
- How to make a capacitor powered spot welding machine for 18650 Lithium ion battery.
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Mr Electron - New Capacitor Bank operated Battery spot welding machine at home DIY . Make 18650 li-ion battery tab spot welder.
By : Omar Suhaib
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12 more LIKES to go guys.Unbelievable! Thanks for the Support. :)
bro you nailed it....i saw various videos for spot welding using microwave transformer which is bit tricky and time consuming but your spot welder is easy and effective.
Brijesh kumar Thanks .. I have been figuring out a method for effective spot welding for a long time and i have tried most of them.. This technique indeed gave the best results :)
creativ electron7m from where to purchase capacitors
varunanaditya mandawara : I got them from large DC motors.. These should be available on ebay or amazon.
creativ electron7m bro can u help me buy on my behalf , i live in mumbai (can u call me at 8779585286
varunanaditya mandawara :u there on WhatsApp????
Definitely a LIKE! Simple tools and junk box components instead of costly manufactured equipment. Keep up the good work.
Thanks :)
Really a simple safe nice project.
I would personally find a case, protect the capacitors from accidental shortcuts and replace the terminals with longer good quality wires.
And i would builda pedal for it to activate the circuit only when you are in the correct position. Like this you have to guess that the welding spot will be the right one at the moment of the shortcut.
With a pedal - ab hand made one - you can press it only when you're ready.
To metal bars with a wood frame and a spring can do the job.
Anyway the idea is amazing.
You are shorting out your first cap with those bare wires....good idea with the light bulb
Great video, simple and straightforward thanks
You need a momentary switch so you can mount the contacts and tap the switch as fast as possible , this will allow you to not burn thru
Absolutely brilliant simple approach. Thanks.😀
That is what I call diy, brilliantly simple.
Christ Hamilton Thankyou 😊
Awesome video, very good description, just a little mess up on the capacitor wiring.
i am going to make one. simple & effective. like it a lot. considering the lack of material this is a really good one. thank you for the info. From England
paul kavanagh Thanks for the appreciation... Glad that you liked my project.
SImple and effective. A true DIY.
Jose Alejandre Thanks 🙂
How is it not shorting out with the positive and negative touching on the capacitors?
thank you, it's a very cool idea and way easier than rebuilding transformer. i will try this
Blake Werner Thanks 🙂
Very simple and effective. Just two questions, the nickel strip u get from where? Is there risk of electrical shock touching the electrodes? Congratulations for the clever project man.
Gograss Gam I purchased it from ebay.I assure you that there is no risk of electric shock coz its only 12 to 13V
Would you like to explain the fuction for the lamp connected there. Further there any possibility that the capacitors will be charged over its rated capacity?
Okay, thanks. I am making a battery pack for a high amp load (30-40A). Do you knoe the thickness of the nickel alloy strip you use in your demonstrations? Cheers
Brijesh,excellant.With simple tools You made it
Moni Mathew Thanks.. who is Brijesh?
Sorry friend,it is by mistake
Moni Mathew ok. No problem ☺
Thank you Sr for the video. Can i use the 6 500farrad supercaps to spot ? Thank you
garabini NJM higher capacitance means higher SC Current which will burn the nickel strip.so in parallel they won't work but they will work perfectly in series.
This video is great , I have an 8 amp hour battery too and a capacitor bank . Thank You :)
Kyle R 😊😊
Excellent! great work with minimum resources.
Michael Golden thanks
What are the properties of the lamp 12 volt ? Amp ? Watt ? Good job well done
Any 12 volt car bulb will do the job. An 8 watt side light will do. It is just acting as an in series resistor and the higher the wattage the faster the recharge time for the capacitors. As this will only be of the order of a few seconds it really doesn't matter.
Very clever solution. I need to spot weld some Li-ion batteries together. Is it important to have a sharp point on the copper electrode?
not too sharp little close to sharp
Also; what metal is the negative electrode made of? And is this important?
the one to be touched to the battery is to be flat while the other one is to be pointed
Thank you. Is it important to use copper? Or would say a brass rod work?
Great idea & clear explanation
Jimmy Suherman Thanks 🙂
This is a good simple design, but what is the advantage over going directly to the battery terminals (skipping the capacitors)?
Time.
Spot welding needs really high current for about a sec or even less than that.Capacitors cut-off automatically after dissipating large current while going though a Shot circuit while direct battery connection not only reduced battery life but also damages the welding strip.Also you are the one who has to perform the disconnection.High current for longer time results in blackening of the strips....If you can some how control the Short circuit current discharge time,i am sure that direct batteries should work the same..
creativ Electron7M Thank you, that explains it!
J Bishop Anytime :)
Use a 12v solenoid relay switch instead of capacitors and fashion the terminals so that you can hold them with one hand. The solenoid will do your connecting and disconnecting for you, you just have to press a momentary switch to set the solenoid off. Boom! You're welded!
Good idea!! I will try that for sure :)
hey,
good one
I will try
WAQAR ALAM Thanks 🙂
Very nice! Need this for the same job! On your site you say: 'super capacitor spot welds are not as great as the method that i am teaching you now', but why? Don't they release the current fast enough?
Why do you say 3,30,000 uF instead of the world standard 330.000 uF? Is that normal in India?
yah indian numerals go like this -> 1thousand (1k), 1 lac (100k), 1crore (10m). then it repeats, hundred crore, thousand crore, lac crore, crore crore (1,00,00,000,00,00,000).
but electrical components are normally not referred this way. only everything else is referred.
i believe he did it just to sound funny. :)
iceberg789 Thanks for this explaination ☺
It is hard to get such high capacity capacitors every where. From where you got these??
iffee100 From heavy dc motors.. Caps were connected in parallel to the motors.
They occur often in 1980`s electrical equipment like Speaker Cross-overs, Amplifiers & Laser Printers - to name a few.
Ashley Clarke Correct.
Awesome, thanks for sharing.
Rick VanHuss Most welcome :)
Hi Mr Electron. Regarding the above arrangement, I have a 330,000 microfarad capacitor, but unlike yours mine is rated at 10 volts. Will this slightly lower voltage make it insufficient to spot weld 0.15mm pure nickel strips to a battery? Also, please tell me what thickness of nickel alloy strip you use? Thanks
Nathanael Corker 10V is less.. You should use thin nickel strips for these
what if i use a laptop.charger instead of the 12V battery, it puts out 18 volts and also offers better amperage.
OceanBreeze yeah! but the capacitors are not to be charged beyond 12.5V for spot welding.It will burn the nickel strip.
Thank you.
ziad fawzi 😊
from where did u purchased these 18650 cells in india.........
simon peter from delhi (chandni chowk)
Follow the wire from your non-copper electrode to the first capacitor. Then follow it across to the next capacitor. It appears to touch the second pole of the first capacitor: why is there not a short circuit there?? THe wire does not appear insulated. Look late in the video, around 13 minutes... you can see the short clearly. Current should be flowing directly across there... should be lighting the bulb constantly?
Good video, could have made more short video.
Anupam Mishra thanks!
very nice! thanks for the video!
Brilliant! Thank you.
Alfred Calleja you're most welcome :)
I purchased 2.7v 100farad x 12 No.s . Is it sufficient for spot welding?
more than sufficient
@@MrElectron thanks for the reply.
@@MrElectron is it the same if I replace the battery with something like a laptop chrger?
here in philippines where i fuond that capacitor??!!!
Jovel Mamaril Gr8! Did you purchase them new or they were extracted from some machine parts???
I think you missed a decimal point. The first cap you showed is labeled 110000 mfd
not eleven thousand.
yeah it 110000
damn i love it its a very simple design
Rolandas A. Thanks! 😀😀
i recomend you once a month going to scrapyard for super cheap electronics its worth it!
i once bouth a capacitor for 0.20 euro that is worth 351 euros and i sold it on ebay
you can make a lot of money by doing this
Rolandas A. I agree with u and yes i too have done that more than once :) its smart business.. One should but have that eye to understand the value to that scrap :)
i look for capacitors and all inductors and ferrite
ohh!!!nice.I too search for these and motors as well.
brother can i use this method on steel or aluminum sheet which thickness is more than ur nickel strap ?
I THINK IT SHOULD WORK
brother many many thanks u replied ... actually i want apply it to make some jewelry component
Where you live, copper wiring must be expensive! Here, we throw away the small cut pieces when wiring houses (anything under about a meter length gets thrown out).
Yeah! Its really expensive.
N. India? Pakistan?
J Bishop India :) :)
where can I buy those capacitors? Great video. Thanks
Got it from some a scrap market
'sticky tape' really!!!! i am so glad there's people like you in the world always really to help with de-population
Great Job
Nice job! Need this for the same job. Thank's! Why is a super capacitor less efficient? Does it not release the current fast enough?
Why do you say three lag??? thirty thousend instead of three hunderd thirty thousend? Is that the India way ;)?
Ruud de Graaf - Thanks 🙂. Supercaps are less efficient coz they produce high current which if not disconnected in time damages the nickel strip without even creating the welds.
i said "3 lakh 30 thousand" which is indeed the Indian way & now i know that i should have used "three hundred & thirty thousand".
OK, I'm glad for you I posed the lakh question haha. It's really a shame that supercaps didn't do the job because they are much cheaper to buy new then electrolytic caps. I did a search on aliexpress and for 0.3 Farad you pay at least $70 an most of the time more then $100. Where did you get those fantastic 0.11 F caps?
Ruud de Graaf .. i will make a video for supercaps performing the same job with same spot welds.
Hey these capacitors cost $41 each and the 12v batt is $20 in the USA is there any way to create one cheaper. ? Since I can buy a retail spot welder for $150, I'm hoping there is a way to make one under $50 ?
Thanks for that information 'Oz Tas'.I will think out a cheaper alternative and upload it. :)
ty you the best
Oz Tas :)
Oz Tas Are you an engineer or a student ??
im a 2 year low voltage tech whos trying to get into solar panel installation business and am in need of low budget tools for my current project
Wow....this is great. Good work man!
Myles Jarvis thanks!
Thanks :)
I have a question. Sometimes I need to spot weld this stainless steel, probably not much thicker than the tabs you are spot welding. Do you think this would work?
yes it should work :)
can i use a single capacitor of 490,000uf @ 16vdc instead of your 3 x 110,000uf cap?? will it melt the nickel strips??
Sure you can but i would suggest the you charge the capacitors only to 10V max to compensate the high capacitance.I am charging mine upto 12.5V.Yours should also do the job. All the best.
i am using a 12v dc batt like yours and that means if the voltage is constant at 12v5, the higher the capacitance, the higher the discharge amperage right? so it will melt the nickel strips unless i use the lower voltage like you suggested. many thanks for your fast reply...
energy level is= 0.5 x C.(V)^2 .Yes try some low voltage source.Try using 2 mobile chargers in series.They are each rated 5.1V ,so in series they make up 10.2V which should do the job.
got it..
will use an adjustable dc power supply (set to 10v & hope it will not damage the power supply) to charge up the capacitor for the spot welding ..
thank you again for your kind input.
kt goh yeah try that
I FOUND capacitors 3 FARAD 12-18 VOLT HOW TO CHARGE IT 12 OR LESS I WANT TO FIXED DRILL BATTERY IT WERE CELLS NOT LITHIUM BUT Cadmium AND THE NICKLE COMES 0.1 MM OR 0.2 MM OR MORE IT CAN HELP ME FOR THIS WORK AND THE WELD IS STRONG ENOUGH PLEAS HELP ME BECAUSE I WILL BORROW THE MONEY And thank you very much
Charge it with a 12V UPS or car battery & follow the same procedure as above.If the power is too much , use a 9V charger from an old wifi router or connect 2 mobile chargers in series.
thank you and I WANT TO HELP ME MORE IS THE JOIN BETWEEN THE CELL AND NICKLE IS STRONG ENOUGH THAT YOU CANT SPATTERED IT EASY
I have a question. Why you don't even have to use any protective gloves ? You're welding with bare hands and not get electrocuted? How? :O
no electricution risk at 12v dc
Great idea, A must future build for me! save me soldering my Samsung salvaged 18650 cells together.
Goda luv the china 18650 cells, the only thing that limits there capacity is the lack of room to add more zero's on the label. :)
Not long before china print there new 18650 - 1,000,000mah cell.
Thanks :)
Good one 👌
Sreeprakash Neelakantan thanks :)
Bang!
:D
To N. Americans, it''s 330,000 MicroFarads.
aren't 3,30,000uf & 330,000uf supposed to be the same things?????
Yes, but to us it is confusing to see the separator comma not in groups of 3!
I never thought it was going to be an issue. :)
creativ Electron7M Number groupings are very important to us! You have angered the Maths Gods and will have to face an irrational future! 😈
J Bishop ha ha ha 😂
Ace👍👍👍👍👍👍
thanks
Ola Pessoal!!! Bem na minha opinião diversos compradores desse aparelho no qual eu estou incluso, foram lesados, e não culpo os vendedores, vejo isso como uma falha na fabricação do aparelho e isto acontece devido a um super aquecimento no mesmo foi projetado com pouca área de ventilação,, acredito que o fabricante deveria oferecer um reparo um Recall oferecendo o conserto e talvez até sugerir aos compradores para colocar uma ventilação melhor com a instalação de um cooler, pois estes aparelhos estão queimando com pouco tempo de uso e muitos vídeos que vi falam da ventilação como problema o meu veio a queimar com 3 meses sem uso continuo
That post. Sketchy.
Does hot melt glue have silicon in it 😂
Yeh mehnga pry ga. Transformer wala sasta banta hy.
Why don't you touch the electrode when you touch it
Xim chow Why should i touch the electrodes???
can I use 2x 120k mf and 1x 110k mf? all are 15vdc.
Ernie Bolado Sure but try charging the capacitors only upto 11V because you have to compensate for the increased capacitance. All the best.
Thank you.
Ernie Bolado :)
😆😆😆😆👍 first spot looked like the lot was gonna blow then the fuking light came on omg 😂😂😂😂😃😃😭😃😭😭😃
wish this was captioned... Grrrrrrrrrrrr
How would that help??
In the south, we don't hear too many Indian accents and difficult to understand you 🙊...
Ohh!! Sorry .I suppose
BTW i have a complete instructable on it.It might help you understanding..
Please go to this link --> www.instructables.com/id/Best-Lithium-Ion-Battery-Tab-Spot-Welder-NO-Super-/
Excellent! Thank you! I think I was able to follow along but without much electrical knowledge, it's a bit worrisome not understanding a step... 🔌💥
"Lakh" is only used in India, not in other parts of the world, and also the notation "3,30,000" is only meaningful to Indian people, meaningless for people in other countries. It should be 330,000.
in lithuania 1meter of wire that you. used costs 0.05 euro lol
may be you have a copper mine nearby.
no
i cant understand you all i can understand is capacitors
Nathaniel Pecson Go to the instructable link provided in the description to understand it better.
creativ electron7m ok thanks, i really appreciated and apologies for the last comment, i can only understand a very clear english😁
Nathaniel Pecson yeah! no problem.Thanks for the comment :)
he has a super cheap multimeter and realy realy expensive capacitorsbro buy a better multimeter!
Rolandas A. 😂😂 u got that rite.. I got the multimeter for 2$.I have to buy a new one in every 6 months..
12 ads in a 15 minute video are you fucking serious? goodbye :)
Can you make it in English please ?
Is that the new math
stuknda80z ??
Gentlemen: Please don't hate me. I enjoyed the video immensely and will put this procedure to use. But a SERIOUS CAUTION is in order. Please correct me if I am wrong. The 12.5 volts DC and 3 capacitors at 330000uF provide more than enough power (amperage) to electrocute you if the skin of both hands or fingers touch the bare electrodes or conductors at the same time. 5 mAmps across your heart is well enough to kill you. This circuit produces much more than 5mA. Under lack of caution or any inattention this circuit can easily kill you. I believe that the only reason this did not seriously injure or electrocute the instructor is that he never touched the bare electrodes or both conductors at the same time. He maintained contact with the insulation on the copper conductor at all times. Much caution must be used with this circuit to prevent death or serious injury. Make sure that both electrodes are well insulated and absolutely never touch both bare electrodes or bare conductors at the same time without proper insulation. It would not be excessive to wear non-conductive gloves while working with this circuit. Large capacitors are always dangerous. One must always use great CAUTION when working with high capacitance. This is a very dangerous circuit. (Electronics Technician since 1965.)
AWK not dangerous at all since the voltage is only 12.5 volts.
"Current kills not voltage"
The 12.5V divided by the skin resistance determines how much current will flow. The capacitors being large makes no difference as far as how much current will flow through the skin.
Well, that’s true, but if your hands are moist because it’s hot, and you’re sweating, the salt water you sweat out is very conductive.
You won't be electrocuted by 12.5VDC even if your hands are covered in sweat. If you stick your tongue across it you will feel some uncomfortable tingling, but that is it.
Indian technology. The uploader should charge them to the maximum and short it out with bare hands. For all others: Don't build this, it's more like a killing machine.
12v is safe.
Sad. You are clearly depriving a village somewhere of an idiot.