I do like the way you finish/house your projects especially this time giving everything a bit more space. Do let us know how the battery performs over time.
Excellent video for instruction, very professional and awesome audio explanation with clear video. Many should follow your style. Your assistant is also to be commended.
the 90-120 amps required by the spot welder is for micro seconds so its okay the given components can handel this job but if you are building very big battery bank then you might need to take a little break to cool down the cables. for 11$ it is good looking
Great video Sorin, with that size box you could use a small solenoid between the spot weld PCB and leads which could break the circuit at the same time as the 2 x H7 bulbs you used.
that's a very cool spot welder Sorin!. : ) well worth the few quid you spent o it.. i think i'll make one for myself, lord knows i need one. : ) THANK YOU FOR THE VIDEO, IT WAS CLASS!!
I think they left those two components for the user to solder because they are trough hole components that can't be soldered automatically, and thus are more expensive to ship all assembled.
They do it to avoid damage. These passives are relatively heavy and the packaging usually sucks. Vibration or rough handling during transport can damage the components or solder joints. Their safest bet to avoid complaints is shipping these parts separately.
Nice. They used a machine to install all the SMT parts and reflow soldered the board in an oven, the through-hole parts have to be manually installed for more time and money, and it’s much easier to do, just time consuming, so they leave it to the user.
A colleague of mine has a similar kit which he uses quite often for spot welding DIY battery packs. He's now thinking about making a spot welder from a microwave transformer because he might change the battery as its performance dropped significantly within two years. Maybe you could sometime make a spot welder from a microwave transformer?
Maybe he should just buy another battery. That's not too expensive considering it lasted for 2 years. They don't last forever. I regularly change out the batteries for my miniquads, and thats like 15, 4S batteries.
@@minkorrh That's the point. He doesn't want to buy a new battery every two years. If you have a transformer operated spot welder, it will basically last forever, if constructed well.
That spot welder kit you bought is garbage i bought 2 of them and the both blew up before i could build a 10s 10p battery the mosfet on each board let put the magic pixie smoke
Brilliant content! It's most likely that the amp rating on wires is continuous discharge and will be able discharge 2-3 times for 5-10 secs even 4 times if sub 1 second discharge
With high currents i usually ensure only good contact but i never solder because it will increase contact resistance (is solder makes its way between copper parts ) producing more heat
Hey, I just found your channel and I have to say that your content is A+ quality. It was interesting and informative! Great video Sorin! Also I subscribed to see your future projects on time!
Arată bine . Foarte util pentru cei care fac pachete de battery . Uite o sugestie ai putea să folosești 2 brekere de aperaj mare sau mai multe in serie pe post de întrerupător aşa ți-ar fi mult mai uşor să deconectezi bateria. Plus niște terminale pentru filere de la modulul de sudură . Xt90 pentru ale separa de modul .
I just made a spot welder with a microwave transformer and I suggest you do too 3.3v 580a and no need to worry about charging and battery degradation 0.2mm strip is nothing for it haha
Components are through hole, its cheaper to not solder them on and just ship them with the package. Through hole components need a solderbatch to do large batches wich is extra cost for the manufacturer.
Good demo and advice on charging levels for lithium-ion batteries as well as the intro to types I wasn't aware of until now. Btw, like your cute little inspector checking things out 4u.
Very interesting and useful video. Specially thanks for attention to great details, that made me confident to assemble similar DIY kit. Which already bought components but not yet tested.
3:00 The components are not soldered because a) they're through-hole, so that would be a completely different process to the SMT components already installed, and b) they are the only components that most hobbyists are able to solder reliably anyway. Also, the ratings on the lugs and connectors are for prolonged use. No problem to send 10x the current, if it's only going to be for tenth of a second. The problem here is rather the current being way to low for proper spot-welding. Industrial spot welders do the welding in less than a hundredths of a second, and use capacitors for that reason. Batteries just have too high of an internal resistance.
Interesting how he liked only the comments that stroke his ego, constructive criticism seems to bother him. Also I was wondering why go through a hassle to build this when we have more refined products to buy for as low as 20 euro? I like to build stuff but it's usually when I cannot buy the thing I need or I need to improv. Good comment btw.
I just ordered stuff. Of course it will take 2 months for everything to arrive :) I used your affiliate links so I hope you get something from it. You did a good job explaining how to assemble, so I think I should be able to do it as well. It cost me 65,07€ all together. Cheers
I just did it! Based on your instructions! Thanks man for clarifying everything just enough so it was possible to repeat all the steps. I did not do it completely the same as my box was too big, so I just used a back plastic plate for it. In the next couple of days I will try to spot weld my first battery pack. Now, only the sky is the limit :D Cheers!
Nice Project. the only mods i would make are a set of heatsinks on the mosfets and a fan to keep them cool thus extending their life and a cut off switch on the lid so it cuts power if opened thus to prevent any small conductive materials from falling in when open and being missed the one device you dont want to let out the magic smoke. ... or a shock yourself when disconecting the battery pack
Hi! Really nice and helpful video! Please can you tell me what is the wire cutter that you use in this video at 3:09, It looks good quality! Thank you!
I like this video, and find the humor refreshing, thanks. For future reference... as you've mentioned in the video itself, the welder is not "home made", only a kit with a battery. Although click bait titles are sometimes essential to attract viewers, in this case the truth would have been better (imho), i.e. something like "very powerful spot welder kit" instead of stating "home made" in the title just to reveal the truth in the video itself. Keep up the good work.
This is a great build. Very simple and super useful. I have been thinking of getting one of the prebuilt portable ones for my channel. However this looks great too. I might try your approach and make a video for it.
They let you solder the last components yourself because they are through hole components. If they have to let it solder in the factory, it is an additional step that comes with high cost compared to SMT assembly.
A very good project and helpful 😀video construction, Sorin! I will make one spot welder like yours in the next times to solder LiPo 18650 packs for my rc submarines. Have a very good New Year 2022 and regards from Spain!
Thank you for this video I purchased one of these spot welder is exactly the same as yours and I was impressed with the performance I haven’t really got any battery packs yet with it but see what you have done is give me some ideas and has given me a lot more confidence to go out in a full build of the spot welder project I use a disabled scooter battery for my spot welder but think I might invest in a lithium polymer batteries for the billed Thanks again for all the projects and good ideas that you put out on this channel I really look forward to the next one on the big hi from the UK stay safe
@@bobravenscraft5376 Yes I think you are right I’ve been using a very large lead acid battery and it works fine I’ve now finished my disabled scooter battery just bought an active balance board so I can keep it in balance even though it’s got A BMS all the batteries are different mics I’m slightly out of balance
This is exactly what I am looking for. Dose the key points on the cct board appears in second 50 ,If an external switch is attached to the circuit, will it compensate for the use of the internal switch to change the welding current?
Looks like its a doable project for a novice (👋😂). Instead of using a battery can i use a laptop charger connected to a boost converter making sure i keep to 12v? Excellent video, nicely explained👍👍
I have had no luck with this board. The welds are not strong enough. I tried with a 12V 500 CCA car battery and I also tried with the battery you linked. Both were not strong enough to hold a weld onto the battery even at the highest setting. The strip is 0.15mm pure nickel on to 18650 batteries. Any ideas? I might have to give up and buy a kweld.
the batteries are strong enough. there is a current loss elsewhere. did you use the cables and connectors from the kit? did you connect the cables directly from the battery to the board, or did you add another switch or connectors? this board is recommended for nickel strips of 0.1mm or max 0.12mm.
@@Sorin_DIY Thanks for your reply. I used cables with the kit. I connected straight from battery to board. Perhaps my strips are too thick. Next option is kWeld but very expensive!
I think on retest I am expecting a more obvious weld. But the strip is holding! Not coming off when I pull it. Perhaps the weld is happening just not as big as when I used a solenoid hooked up to a car battery with a momentary switch - this produces sparks and lots of heat!
Another great project Sorin, honestly its video's like yours that give me enthusiasm to build thing and bring idea's to life.
Keep up the great work !
Greetings from Canada. Loved your video and appreciate your sense of humour, all the best to you.
Thank you for sharing your eyeball engineering, great job.
Know that the Light of your being is a blessing to everyone on your journey.
Shine on
You present your videos with super quality, I admire your talent. Oh, and I love the way you include your cat.
This is nice AND security oriented. Well done and quite neat!
I love your videos! From South Africa🇿🇦🇿🇦🇿🇦
Yeah... Sorin Uploaded a new video 🥳🥳
I love the concept of "I can use *all* my devices as independently rechargeable power sources".
I do like the way you finish/house your projects especially this time giving everything a bit more space. Do let us know how the battery performs over time.
উফ
Thank you Sorin. Superb. Don't change a thing style wise. It's all great, clear, logical and funny. Carry on please... xxx ;-)
I love the level of comedy you always put in your videos.
Hi friend, Nice video. Just i saw this. Clear demo and explained. Super.
High quality videos. Thanks !
Sorin! I Just Subbed. You have all the right "ingredients". Delivery, Clarity, Knowledge, Information about sources Listed. A+
Excellent video for instruction, very professional and awesome audio explanation with clear video. Many should follow your style. Your assistant is also to be commended.
Very excellent video. Love your sense of humor !
Sorin, you are the man of the DIY. Thanks for these good works.
the 90-120 amps required by the spot welder is for micro seconds so its okay the given components can handel this job but if you are building very big battery bank then you might need to take a little break to cool down the cables. for 11$ it is good looking
it was very nice working on these electrical things .i have enjoyed watching Thanks❤
really great work..thank you for the knowledge.greeting from Indonesia💝🇮🇩🇮🇩🇮🇩
I like your sense of humor!
Great video Sorin, with that size box you could use a small solenoid between the spot weld PCB and leads which could break the circuit at the same time as the 2 x H7 bulbs you used.
Superb Video. Very clear, step-by-step build, with concise explanations, which include dry humor and feline assistance. Thank you, Sorin.
How come this is the first time I come across this channel?! You rock man!
I love your cristal clear explanationa! Good video!
Ce tare esti omule am respekt tare, sanatate si toate cele bune sorine😉✌️
that's a very cool spot welder Sorin!. : ) well worth the few quid you spent o it.. i think i'll make one for myself, lord knows i need one. : ) THANK YOU FOR THE VIDEO, IT WAS CLASS!!
Little to no explosions is always a good thing. Good job!
Nice conversion kit.As always from you Sorin nice tutorial
Great video and like the way you comment and speak. Special thanks to you adviser ( the cat)😊
Even though I have no need for a spot welder, this video was very enjoyable.
i love electronics. like your presentation,, you are an ideal person for me to watch these sort of videos. good luch for the future project.
I think they left those two components for the user to solder because they are trough hole components that can't be soldered automatically, and thus are more expensive to ship all assembled.
yes, that makes more sense :)
They do it to avoid damage. These passives are relatively heavy and the packaging usually sucks. Vibration or rough handling during transport can damage the components or solder joints. Their safest bet to avoid complaints is shipping these parts separately.
Thanks my favourite chap from Romania!
Nicely explained ❤
Nice. They used a machine to install all the SMT parts and reflow soldered the board in an oven, the through-hole parts have to be manually installed for more time and money, and it’s much easier to do, just time consuming, so they leave it to the user.
yes, that makes more sense :)
Very very nice I really like your project very much :)
I just became your subscriber because of your explanation
you gotta love his elec. assistant
bravo sorin asteptam si alte materiale
A colleague of mine has a similar kit which he uses quite often for spot welding DIY battery packs. He's now thinking about making a spot welder from a microwave transformer because he might change the battery as its performance dropped significantly within two years.
Maybe you could sometime make a spot welder from a microwave transformer?
Maybe he should just buy another battery. That's not too expensive considering it lasted for 2 years. They don't last forever. I regularly change out the batteries for my miniquads, and thats like 15, 4S batteries.
@@minkorrh That's the point. He doesn't want to buy a new battery every two years. If you have a transformer operated spot welder, it will basically last forever, if constructed well.
Hi I wait a lot for your videos
That spot welder kit you bought is garbage i bought 2 of them and the both blew up before i could build a 10s 10p battery the mosfet on each board let put the magic pixie smoke
Foarte tare proiectul! Felicitari, Sorine! Am dat intimplator peste clip-ul asta dar ... abia astept sa vad ce alte proiecte ai mai realizat. Succes!
Brilliant content!
It's most likely that the amp rating on wires is continuous discharge and will be able discharge 2-3 times for 5-10 secs even 4 times if sub 1 second discharge
With high currents i usually ensure only good contact but i never solder because it will increase contact resistance (is solder makes its way between copper parts ) producing more heat
Thank you for giving more screen time to the DIY superstar Kitty this time..
Sorin - Vendor does SMT process, which is low lost. Thru hole parts requires more human labor, which is why customer does it.
Hey, I just found your channel and I have to say that your content is A+ quality. It was interesting and informative! Great video Sorin! Also I subscribed to see your future projects on time!
Very good video, good explanation, perfectly understandable. Thank for sharing. Good work
Very nice sorrin ! Again u made a great video !
Arată bine . Foarte util pentru cei care fac pachete de battery . Uite o sugestie ai putea să folosești 2 brekere de aperaj mare sau mai multe in serie pe post de întrerupător aşa ți-ar fi mult mai uşor să deconectezi bateria. Plus niște terminale pentru filere de la modulul de sudură . Xt90 pentru ale separa de modul .
I like it, it is perfect for DIY battery packs (and don't need the use of pedal switch) thanks for the video .
I just made a spot welder with a microwave transformer and I suggest you do too 3.3v 580a and no need to worry about charging and battery degradation 0.2mm strip is nothing for it haha
Nice job Sorin 👍👏
Subbed you so that you reach 1 lack best of luck pal.
Sorin uploaded a new video 🎉🎉🎉🎉🎉
You covered lot of things in single video ❤️❤️❤️ thank you. 😁 Feeling happy after watching this video.
Excelent project! I'm very impressed. Thanks for sharing!
Love from Bangladesh 🇧🇩
I sure do like this guy.
Simply the best, Melcule :)
merci si la multi ani in avans pentru maine! :)
@@Sorin_DIY, thank you!
Assuming the board is wave soldered. Less cost if you solder the chunky bits instead of them.
Components are through hole, its cheaper to not solder them on and just ship them with the package. Through hole components need a solderbatch to do large batches wich is extra cost for the manufacturer.
Very COoL & a Good Job. Thanks! Cheers from So.CA, USA, 3rd House On the Right.
Good demo and advice on charging levels for lithium-ion batteries as well as the intro to types I wasn't aware of until now. Btw, like your cute little inspector checking things out 4u.
Very good 👍 my friend 👍😊
Good video! Enjoy the humor.
You should invest in a few small wrenches. Nuts don't like being tightened with pliers.
Very interesting and useful video. Specially thanks for attention to great details, that made me confident to assemble similar DIY kit. Which already bought components but not yet tested.
3:00 The components are not soldered because a) they're through-hole, so that would be a completely different process to the SMT components already installed, and b) they are the only components that most hobbyists are able to solder reliably anyway.
Also, the ratings on the lugs and connectors are for prolonged use. No problem to send 10x the current, if it's only going to be for tenth of a second. The problem here is rather the current being way to low for proper spot-welding. Industrial spot welders do the welding in less than a hundredths of a second, and use capacitors for that reason. Batteries just have too high of an internal resistance.
Interesting how he liked only the comments that stroke his ego, constructive criticism seems to bother him. Also I was wondering why go through a hassle to build this when we have more refined products to buy for as low as 20 euro? I like to build stuff but it's usually when I cannot buy the thing I need or I need to improv.
Good comment btw.
@@mmdirtyworkz He's okay in only liking content that he actually likes. But the end product remains questionable.
@@graealex People should learn to appreciate constructive criticism, that would enrichen them greatly.
Cheers mate
I just ordered stuff. Of course it will take 2 months for everything to arrive :)
I used your affiliate links so I hope you get something from it. You did a good job explaining how to assemble, so I think I should be able to do it as well. It cost me 65,07€ all together. Cheers
I just did it! Based on your instructions! Thanks man for clarifying everything just enough so it was possible to repeat all the steps. I did not do it completely the same as my box was too big, so I just used a back plastic plate for it. In the next couple of days I will try to spot weld my first battery pack. Now, only the sky is the limit :D Cheers!
Nice Project. the only mods i would make are a set of heatsinks on the mosfets and a fan to keep them cool thus extending their life and a cut off switch on the lid so it cuts power if opened thus to prevent any small conductive materials from falling in when open and being missed the one device you dont want to let out the magic smoke. ... or a shock yourself when disconecting the battery pack
The mosfets don't seem to have any driver circuits, so they will spend a lot of time in half-open/half-closed state and high-resistance.
Well done. Great video
La multi ani pentru 2022 si felicitari pentru toate prezentarile din video-urile tale. Mereu este o placere sa-ti urmaresc realizarile.
my favrate vloger ever
please next,use super capacitor in any project you like😊
Hi! Really nice and helpful video! Please can you tell me what is the wire cutter that you use in this video at 3:09, It looks good quality! Thank you!
Great video, Sorin!
I like this video, and find the humor refreshing, thanks.
For future reference... as you've mentioned in the video itself, the welder is not "home made", only a kit with a battery. Although click bait titles are sometimes essential to attract viewers, in this case the truth would have been better (imho), i.e. something like "very powerful spot welder kit" instead of stating "home made" in the title just to reveal the truth in the video itself.
Keep up the good work.
This is a great build. Very simple and super useful.
I have been thinking of getting one of the prebuilt portable ones for my channel. However this looks great too. I might try your approach and make a video for it.
CD-Rom Screws. LOL!! Thank you for the laugh and this is how I am referencing these screws from now on.
Awesome. You are the best diy channel. I love your speaker videos. It will be nice if u can make a powerful 5.1 hometheatre system.
Thanks for sharing of your experiments and nice hints.
by the way, greetings from Turkey to your dear assistant, your cat :)) what is its name?
her name is Cici the annoying cat.
They let you solder the last components yourself because they are through hole components. If they have to let it solder in the factory, it is an additional step that comes with high cost compared to SMT assembly.
A very good project and helpful 😀video construction, Sorin! I will make one spot welder like yours in the next times to solder LiPo 18650 packs for my rc submarines. Have a very good New Year 2022 and regards from Spain!
Excelente trabajo! Claro e instructivo! Gracias!
Even though it’s simple
it’s still a good project
Thank you for this video I purchased one of these spot welder is exactly the same as yours and I was impressed with the performance I haven’t really got any battery packs yet with it but see what you have done is give me some ideas and has given me a lot more confidence to go out in a full build of the spot welder project I use a disabled scooter battery for my spot welder but think I might invest in a lithium polymer batteries for the billed Thanks again for all the projects and good ideas that you put out on this channel I really look forward to the next one on the big hi from the UK stay safe
Car battery New or good only
@@bobravenscraft5376 Yes I think you are right I’ve been using a very large lead acid battery and it works fine I’ve now finished my disabled scooter battery just bought an active balance board so I can keep it in balance even though it’s got A BMS all the batteries are different mics I’m slightly out of balance
This is exactly what I am looking for.
Dose the key points on the cct board appears in second 50 ,If an external switch is attached to the circuit, will it compensate for the use of the internal switch to change the welding current?
yes, you can add an external switch. but the switch doesn't change the current, it only changes the welding time in milliseconds.
Looks like its a doable project for a novice (👋😂).
Instead of using a battery can i use a laptop charger connected to a boost converter making sure i keep to 12v?
Excellent video, nicely explained👍👍
Thanks for watching. No, you need a powerful battery that can deliver 130-150A.
Always an inspiration man! Keep up the good work!
After connecting the battery, I did not go blind. (Sounds like Homer Simpson when he made his new drink, the "Flaming Homer").
Buen proyecto, ¿se puede utilizar una fuente de poder de computadora (ATX) en lugar de el paquete de baterías?. Gracias.
Thanks! No, it needs a higher current, more than 100A.
Great video, Funny also
Is the welding timed? I am thinking if they are I would use this setup to power a relay to a larger spot welder.
Yes, the welding is timed, but I don't think a relay will work fast enough to react to these pulses. if you try it, please share the results.
Top class DIY video.
Close to 3 years later, I'm finally making it with the same kit. :)
Surface mount installation is low cost. Through hole is more expensive and a separate step.
I have had no luck with this board. The welds are not strong enough. I tried with a 12V 500 CCA car battery and I also tried with the battery you linked. Both were not strong enough to hold a weld onto the battery even at the highest setting. The strip is 0.15mm pure nickel on to 18650 batteries. Any ideas? I might have to give up and buy a kweld.
the batteries are strong enough. there is a current loss elsewhere. did you use the cables and connectors from the kit? did you connect the cables directly from the battery to the board, or did you add another switch or connectors? this board is recommended for nickel strips of 0.1mm or max 0.12mm.
@@Sorin_DIY Thanks for your reply. I used cables with the kit. I connected straight from battery to board. Perhaps my strips are too thick. Next option is kWeld but very expensive!
I think on retest I am expecting a more obvious weld. But the strip is holding! Not coming off when I pull it. Perhaps the weld is happening just not as big as when I used a solenoid hooked up to a car battery with a momentary switch - this produces sparks and lots of heat!
Hello again, I have purchased this, it is version 5.6. Came with 1500, 25V capacitor. Can I use a 2000, 35V cap instead?
Thank you
another great video, mate!