kWeld - The best 18650 spotwelder?

Back in stock 27/02/19 - You can check it out here - www.secondlifestorage.com/kweld
Use this battery to power you Kweld - ebay.to/2lAJyLh
This is by far the best 18650 spotwelder I've used to date, fast doesn't get too hot and consistent welds. The end result would have looked much cleaner with new cells rather than recycled - but recycled cells work for me.
Buy this Spotwelder - You can check it out here - www.secondlifestorage.com/kweld
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Second Life Storage Cell Finder -
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Official forum thread with all the extra details to fill all the gaps -
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Cheap BMS - s.click.aliexpress.com/e/eX4NpXsc
Quality BMS - www.batrium.com
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Thanks for tuning in as always!
Pete
#kweld #18650spotwelder #diypowerwall

[@HBPowerwall]

kWeld Spotwelders are back in stock visit Keiths Facebook page for details - facebook.com/18650Shrink/posts/526056031251472

[@floridadragonslayer]

So how are you doing your bus bar style connections with the spot welding?

[@7lovefreedom]

How does the battery work without bms?

[@HBPowerwall]

@@7lovefreedom Anybattery will work with out bms.... it's just safer with it! For its given application it will be charged with hobby charge to keep cells balanced. For it to go to low we would need to be using it for a few days

[@riocole8940]

I own one, and have been very pleased with it's performance. I'm very thankful that this very skilled electrical engineer created this and made it available. Having it has opened up a ton of possibility for me. I hope my comment supports someone's confidence making the purchase!

[@HBPowerwall]

I can't wait for his scooter ~!

[@edgarquiroz6034]

I also have the k weld and very pleased to own one too.

[@MnstrKhaos]

it just did, gonna order it right now.

[@jeffwaterman4144]

Dude, your setup is insane, RESPECT!!

[@HBPowerwall]

It's taken a long time but i'm pleased with the results that's for sure

[@nealkeeble]

Love your vids, great info, great techniques!

[@HBPowerwall]

Thank-You

[@hawkercnc8261]

On the output it is best to have as little resistance as possible. I therefore tinned the output leads connection to the board and as the bus bar connections. In addition I soldered the copper cables into the copper electrodes which I hold in position before pushing the foot switch. I get much more flash and have never needed to move the power from the lowest setting to spot weld successfully. This was after advice from my electronics guru friend, who said that to get the amps up as much as possible the resistance must be as small as possible and demonstrated the maths to me using v=ir.

[@tf3confirmedbuthv54]

Thank you so much KZbin for recommending me an amazing youtuber

[@HBPowerwall]

I don't think so, just an average guy kicking back and having fun

[@CanispaterChristmas]

Looks good. Thanks!

[@HBPowerwall]

Thank-You

[@borysandreyev9717]

Amazing job!

[@HBPowerwall]

Thank-You

[@garolittle]

I have this spot welder. Love it. Perfect welds every time.

[@HBPowerwall]

Cept when i do it lol had it set to 10j rather than a lot more :)

[@TeknoTronik]

When can i BUY?

[@fenderstratguy]

You do beautiful work. A true craftsman. Super efficient and methodical. 8:51 Even the wear notch in the workbench serves a purpose :)

[@HBPowerwall]

Thank you very much!

[@danielmoraes9637]

amazing work

[@HBPowerwall]

Thank-You Sir

[@ColeBlack2]

I bought one of these too after trying like 3 different Chinese spot welders. Nothing else compares totally worth every penny. But you should really try the auto mode on that thing! I got a foot pedal for it but never hooked it up. The auto mode seriously save so much time and make the task of spot welding large packs a breeze!

[@HBPowerwall]

Auto mode is next level fast love it!

[@AveRage_Joe]

I bet crushing that underside grid was satisfying!!!

[@HBPowerwall]

I didn't do both sides :) if that is what you were referring too

[@acelectronic2831]

wow amazing project, i like it

[@HBPowerwall]

Thank you Electronic Make

[@toochi84]

Great video Pete. ;)

[@HBPowerwall]

Thanks for all the help and replying to dumb newbie questions & for all the shink - OOoh yeh!!!

[@Island.dweller]

Hey Mate, Im ready! ish... would you recon soldering the busbar to the nickle strip prior to kwelding the strip then soldering to avoid heat on the cells?

[@Professorvapes]

great video bud well put together now I have a question I want to make a new battery for my e-bike do I need a spot welder or could I solder them together

[@rogermckenzie2711]

I soldered mine without any drama...couldn't justify buying a welder ;)

[@HBPowerwall]

I've soldered 1000's of mine - without issue - I still now feel that spotwelding is much better for many reasons

[@farmerboyfpv3637]

Flip tge fuze over so it canbe replaced by just losening the bolts?

[@RoyvanLierop]

Protip: Preheat the plug before soldering in an oven. This makes the solder stick better.

[@HBPowerwall]

great pro tip..

[@gibamec7636]

Top! Very good!

[@HBPowerwall]

Thank-You sir

[@KENTA24477]

Make Spotwelder need spotwelder :)

[@HBPowerwall]

Spotwelder good...

[@toomasrett3931]

Boy. 20 years ago, it was a lot harder. Good show...

[@HBPowerwall]

Thanks

[@ChyounesYouness]

good work

[@HBPowerwall]

Thank-You

[@PhdHung]

good video

[@HBPowerwall]

Thank-you

[@masterzz57]

I made a spot welder with a microwave transformer. it works like a charm

[@HBPowerwall]

I bet it does, but I would rather spend that time making videos than doing stuff over i don't understand :P

[@graykimchi]

awesome video you convinced me to snag one up I also love the tunes!

[@HBPowerwall]

Thanks for the feedback - you won't be sorry it's a great spotwelder

[@bobsaturday4273]

btw , thanx for the effort showing whats out there but your link doesn't go to anywhere showing a price or way to buy one

[@buymygoods9757]

8:03 make my diy welder tip like this

[@Expedient_Mensch]

Jointing compound between the bus bars and PCB not needed?

[@chrissdiyprojects4303]

Nice vid Pete how do you compare the kweld to rowans sunkko that you were borrowing?

[@chrissdiyprojects4303]

Don't mind me just read the video description lol

[@shoyaibpatel108]

Hi, nice video I prefer to use the boss aulakiria spot welder over the k weld. As it gets the job done in a breeze. Thank you.

[@HBPowerwall]

Clearly you've never used this one then :)

[@Dutch_off_grid_homesteading]

heya that is a very nice diy spotwelder

[@dennisyoung4631]

Hope to get one within a year or so. (Need to save up for it)

[@andregenter4213]

4:00 a painful moment for every electrician…

[@richardnanis]

This spotwelder is probably the best available for 18650 cells! I followed the development on YT - brilliant idea! Anyway your welds look very weak to me - you should at least use 80 - 100 Joules! And i would do 4 weld spots on each cell instead of just 2 :-) Instead of the annoying music you should better just talk and share your experience :-)

[@HBPowerwall]

I'm so sick of talking and editing my incorrect pronunciation & info I love this style better. That said next one I went a toattly different direction and did an under 2 min script then voice over first - then got the footage - see how that turns out.

[@Damjanhd]

can you give me a link to video where is that spot welder made?

[@HBPowerwall]

@@Damjanhd email link in the description to the US seller of the unit Damjanhd

[@ArthursHD]

Who made the damn thing? Looks nice! How much would Mainbord cost + fuse cost? The rest can be diy'ed. And Bluetooth to app could be a cost saver instead of rotory encountered and a screen. I would like to see a power supply with great efficiency for atx pc and server running on 48V pv system

[@krlenjuska]

100 joules? Youre joking right? its 10000 W if you use 10ms. 20 joules is enough for 0.1 - 0.12 pure nickel.

[@fmarpt]

Pete, did you measure how many amps was taking from the 4s battery? I'm wondering what is the minimal parallell cell amount for this to work....is 80p enought or too little? Thanks

[@maxb6859]

frnandu 80p is plenty if you have like 5A max draw cells at minimum

[@Mr_Wh1]

@@maxb6859 I know the cells deliver more amps at short bursts, but if we assume they did 5 amps each, with 80 cells in parallel, they would deliver 400 amps. That's under the recommended amps.

[@TheFlyRCGuy]

I wanted to know where you got the STL file for the electrode holder??? I just put my kweld together

[@HBPowerwall]

in description buddy

[@timothywatson9617]

where did you find that and what is it called and did you give that one spot welder away that you was talkin about

[@HBPowerwall]

this one is a kWeld unit - facebook.com/groups/KWeldNorthAmerica/ not giving it away but it's available to my local community to borrow

[@leds4power742]

Hello HBPowerwall, Do you have an .STL file for the KWeld triangle handle? Or maybe know were to get one? Thanks for the nice video! John

[@HBPowerwall]

I did think it was In the description? Should be on that 3d printing site i can't remember the name of now i thinks lol

[@Noleenmegaair]

Didn't quite catch - where did the STL for electrode housing come from?

[@HBPowerwall]

Glad i could help :)

[@thecombatengineer7069]

I am about to order a couple of these as well. Just emailed the seller a couple days ago.

[@HBPowerwall]

Nice, i'm very happy with the unit so far

[@cptkangaro0]

Hi Pete. I bought one of those units myself a couple of month ago and it works like a charm since day one. The features it has are just awesome. Like your electrode housing - is this your own design, or did you get it from somewhere? If it´s yours, would you mind uploading the STL´s to thingiverse...?

[@HBPowerwall]

It's available from facebook.com/groups/KWeldNorthAmerica/

[@fredericofernandes5170]

@@HBPowerwall Hi, I hate Facebook. there is another site I could have this STL file?

[@GENcELL2014]

Awesome! Btw the cell holder doesn't need supports to print successfully. Did you notice the cell holders plastic expand slightly while it was warm after all those welds?

[@HBPowerwall]

Didn't notice have another test to do tomorrow, I'll take a look then

[@CyCy-uy2lf]

Nice work! I wanna diy a 18650/21700 battery pack，could you please tell me which spot welder works well and where to buy one？Thanks!

[@eko653]

What's the maximum input voltage?

[@Timkaasjager]

Hey man, what a great vid! Did you design the electrode tip yourself? Either way, do you perhaps have a link to the model ;)

[@HBPowerwall]

Thats the kit how i received it

[@Timkaasjager]

@@HBPowerwall I emailed keenlab and they sent it to me :)

[@jeffwaterman4144]

I've been looking into making one of these, what kind of energy makes a good spot weld? I'm trying to size my capacitor bank and when I use the formula for specific heat, melting nickel requires like 4000j! I scaled it down fora small pulse but still don't know. What is your pulse time and capacitance bank?

[@swagiyo9801]

4kj !? i think its only like 50j - 150j for those nickle strips.

[@rohanwilschefski2549]

Top notch

[@HBPowerwall]

Thanks, bud - I'm proud of this one!

[@user-hh3nj4oi3k]

Excellent, God willing, forward, you are a very special man to me, and I am one of your followers who admire you with the power of this work. I use a small machine, but I wish I had such a powerful machine, but I hope how to buy these batteries and send them to my country, Saudi Arabia 👍🌹🌹

[@alcurtis93]

Can I ask what your profession is and how you came to acquire these electrical skills? Guessing you were formally trained?

[@HBPowerwall]

Console/Computer Tech, annnnnd KZbins :P everything I learnt in my adult life has been binge watching KZbin and making some expensive mistakes in the process.

[@alcurtis93]

@@HBPowerwall that's awesome mate. Well done on picking all that up!

[@HBPowerwall]

Thank-You

[@nourspolaire1970]

Great tuto! Can you give the link to buy the spot welder kit? Thanks

[@HBPowerwall]

email is in the description buddy..

[@SFORSANDEEP]

OMG.. Rather than this, It will be great if you share your workshop tour as a video... :)

[@HBPowerwall]

There are many tours - unfortunately can't find them on my mobile to link them sorry.

[@oscarmontes7715]

Great video!. Do you think is only for níquel metal?. Could I weld thin zinc galvanized metal?. Thanks.

[@HBPowerwall]

I don't know never tried sorry only nickey but it can do up to 0,3mm thick

[@teknisitua6110]

Tell me about thermal camera..

[@dtec30]

happy days havin a pizza watchin my buddy make a kweld video priceless

[@HBPowerwall]

I think i need pizza after this one lol

[@dtec30]

@@HBPowerwall you did a pretty good job on it IMO catchy tune too

[@dtec30]

did you do the ave thing of going click when tightening all of those bolts up ie human tension wrench

[@HBPowerwall]

@@dtec30 had one back in the day, now it's she'll be right - seems good!

[@dtec30]

@@HBPowerwall you had a dobot ok how much was is to buy they seem unusually coi about the price thesedays

[@niniliumify]

Permanent Marker erasing tip... ...Dry Erase marker over permanent and wipe off!

[@HBPowerwall]

what for bud?

[@niniliumify]

Random numbers on your work surface.

[@HBPowerwall]

ooh that's from last video icharger X6 tests my 'perminate' whiteboard so to say later in the vid i cleaned it off

[@mauricewright9887]

Do you know what those connector tips are called that you crimped onto the wires that went into the terminal block?

[@HBPowerwall]

XT150ies ? rover.ebay.com/rover/1/711-53200-19255-0/1?mpre=https%3A%2F%2Fwww.ebay.com%2Fitm%2FXT60PW-XT60-XT90-XT150-Bullet-Plug-Connector-RC-Drone-Lipo-Battery-US-Seller-Lot%2F132844648821%3Fhash%3Ditem1eee287975%3Am%3AmbcFKpSpNmCLmLSKbBJJ6fQ%26var%3D432147153956&campid=5338316103&toolid=20008

[@mauricewright9887]

HBPowerwall thx for the reply. I was actually talking about the terminal ends. I found the name. Wire Ferrule Terminals. Here’s an Amazon link if anyone else has the question. I wish I had known about those years ago. www.amazon.com/dp/B07H29ZTPX/ref=cm_sw_r_cp_api_i_IR5FEb2Y8AQGR

[@TheDarkTiamat2011]

nice project. how is the spotwelder being powered? in your vid its powered from a battery pack, are there other ways, or is that the way to go? also isnt the fuse installed in backwards? i mean they dont have polarity, but shouldnt it be installed so it can swing out when loosening the nuts? in your case if you ever have to change the fuse, you would have to unscrew them completely?

[@HBPowerwall]

It's being powered by the recycled 18650's on the wall just taped 4S off the 14S battery, it'll run on little lipo packs with high VERY high amp draw ability or a car battery as well.

[@TheDarkTiamat2011]

@@HBPowerwall would it be possible to craft a supercap-bank too? i mean you could put 5 supercaps in series and you have ~14v when they are charged, with a cheap low current powersupply that does CCCV, and can deliver the power in a more compact manner?

[@TrueMachine2]

@@HBPowerwall What size of Battery would be recommended? And how big?

[@negaopiroca2766]

Could you share which power supply do you use and do you have a link to those 3D printed parts?

[@HBPowerwall]

BEST battery is rover.ebay.com/rover/1/705-53470-19255-0/1?mpre=https%3A%2F%2Fwww.ebay.com.au%2Fitm%2FRC-Turnigy-nano-tech-5000mah-3S-65-130C-Lipo-Pack-w-XT-90%2F152681729261&campid=5338074967&toolid=20008 and the printed parts are in the description

[@henryD9363]

LOTS OF AMPS! What was that tool you used just after stripping the wires that made the magical helical pattern appear in the exposed ends? Love your photography and editing. (Also made me remember that I have a volume control, hahaha.)

[@HBPowerwall]

what time stamp bud ?

[@nilcoronel6175]

@@HBPowerwall4:30

[@eideticgoone7035]

I would think that you would want to hold the electrodes as vertical as possible in order to reduce the area of tip contact. Since all the current passes through the tips, temperature is not just a function of energy delivered but energy per area of contact. Tilting the electrodes contacts the tapered sides of the points and increases the contact area, distributing the current over a larger area, and reducing the temperature. When you angle the electrodes you can see this in the shape of the dents created. It might be possible to estimate the area in contact by measuring the resistance between the tips prior to the weld, and adjusting the delivered energy appropriately, but this would be difficult to do with accuracy I would imagine. In summary, I think you would get better and more consistent welds if you hold the electrodes more vertically.

[@HBPowerwall]

setting up this unit is key - something i didn't do while filming

[@dragonhunter2475]

where did you get the files for the electrode holder?

[@behemothinferno]

Yes please share this with us!

[@keithbladen8776]

I would like the STL of the electrode holder please.👍

[@keithbladen8776]

secondlifestorage.com/showthread.php?tid=6317 Try this 👍

[@r00yce]

Those welds at the end of the video dont look like they will stay for long

[@HBPowerwall]

nar they sucked, not enough amps covered that in the next video

[@mertcapkin7263]

What do you use as a power source?

[@weeardguy]

It's shown in the video at 9:43 and I can already say: you probably don't have it ;) I'm still waiting on my XT90 connector to be able to use my Kweld... can't wait!

[@ursodermatt8809]

is there a link where one can buy that super spot welder?

[@HBPowerwall]

facebook.com/groups/KWeldNorthAmerica/

[@electrocarbid]

Nice video, nice device :) But the background music is a weapon of mass destruction.

[@70_T_N_70]

The battery is so easy, bro 👍👍👍👍👍👍👍👍👍

[@HBPowerwall]

it is

[@vextrek6036]

Awesome spot welder. I have it and would not own anything else!

[@HBPowerwall]

I would say I love it but it's always out on loan and haven't seen it much since this video was shot

[@vextrek6036]

HBPowerwall that is what happens when you have a great product. :-). Awesome video by the way.

[@kwoods3379]

How hard do you have to press? I’m new to this

[@HBPowerwall]

I would describe it as firm... other wise sparkie sparkie lol

[@user-kc3un7vx7g]

Чувак ты крут! Тебе конструкторском бюро пахать! Респект тысячекратно!

[@nathanpierson9713]

Hi, just bought the kweld week ago, I did some nickel solder! Then I took a break and when I reconnected I have the overcurrent message that appears, do you know how I can solve this problem? Thanks

[@HBPowerwall]

Check the manual, I hear so many stories of people using the 'good enough' way of building..

[@sammarch4314]

Where do you buy this battery spot welder I can not find a website link to buy one

[@HBPowerwall]

www.keenlab.de/index.php/portfolio-item/kweld/

[@jeanalves1425]

Could you tell me where you buy the batteries?

[@HBPowerwall]

Anywhere I can, back in the day would spend days and days on the phone cold calling companies & local businesses asking them for cells.

[@nigelmdl]

could you share or give the link to the Kathode holder? I have been looking for those files but cannot find them... Rather strange, or I am looking them up with a wrong name.

[@miroslavzeleznik1986]

Hi. Did you manage to find schematics for that electrode holder? I have been searching the internet for 2 days and I was unable to find them.....

[@nigelmdl]

@@miroslavzeleznik1986 Hi, yeah with a bit of luck I found this forum post with a download link. secondlifestorage.com/t-Downloads-3D-Print-KWeld-Electrode-Housing-Holder And I have printed out the file in ABS and they work great :)

[@timothywatson9617]

Where did u get that spot wellder

[@HBPowerwall]

The US seller is Keith rover.ebay.com/rover/1/711-53200-19255-0/1?mpre=https%3A%2F%2Fwww.ebay.com%2Fstr%2F18650shrinkandcellholders&campid=5338316103&toolid=20008 on ebay or more direct through fb - facebook.com/groups/KWeldNorthAmerica/

[@bicanoo_magic3452]

God you make great vids. So interesting and entertaining..

[@HBPowerwall]

Thank-you Sir

[@omot2491]

Is it possible to use 4S Lipo's instead of 3S as power supply?

[@HBPowerwall]

As long at it can handle the inrush of 1000 odd amps

[@fuzzyguy210]

Where can you buy the spot welder kit?

[@HBPowerwall]

Link and email address is in the description buddy

[@ronroberts110]

You should not have a steel washer between the cable connector and the fuse-ends. The cable tips should be pressed directly against the fuse.

[@HBPowerwall]

Makes sence... ty

[@ronroberts110]

@@HBPowerwall Forgot to mention, it's a great video, and you are doing wonderful work.

[@elecdroid3666]

Hello. I made a spot welder machine with microwave oven transformer. It has timer module. but burns occur on the nickel strip. Do you have any idea about this?

[@HBPowerwall]

This is why i love the KWELD, control, consistancey and accuracy - DIY is great but dam this product keeps working I would hazzard to guess at about 50 to 75 thousand welds so far.

[@xeenon]

Die Punkte sehen nicht sauber verschweißt aus. Zu wenig Energie?

[@HBPowerwall]

Way too little - needed the video finished and didn't have the correct battery setup to power it.. In a few hours I'll do a stress test of it and fix the weld strength

[@RoadRunnerMeep]

I'd like to see this in a handheld format. Two points which the has a button in the hand held would make it faster. You simply put them down side by side the push a button with index finger rather the foot

[@HBPowerwall]

It's even better than i did in this video - take the probes out of the holder put the unit into auto mode, touch one probe to battery - touch second and ZAP - it's so stupid fast in auto mode - the unit continues to amaze me

[@RoadRunnerMeep]

@@HBPowerwall great to know:)

[@vijaykumarjaintechelectric8723]

Nice

[@HBPowerwall]

Thanks

[@maximpopovic4621]

hi, where do you get those batteries ? from recycled battery packs or what? if so, can you tell me where you get them and for how mutch ? :D thank you

[@HBPowerwall]

I get them from all over - if a company has a IT department they are fair game.. Challenge these days is get them before the recyclers do so you pay less & they aren't picked over for the good cells.

[@maximpopovic4621]

@@HBPowerwall ok thank's :)

[@HBPowerwall]

any time

[@cuemlamchetao1845]

Great

[@HBPowerwall]

I thought so

[@paulbeddows6014]

But what's everyone using to power this ?

[@bazzarr]

Why do you have so many of the same battery? Are you a store battery store or do you just love that battery?

[@HBPowerwall]

It's just a hobby that has gone out of control lol

[@sweatkamran]

Hi I want to know where you bought may I have the link?

[@HBPowerwall]

description buddy..

[@thisphone2538]

Would a 12volt lead acid leisure battery cut the mustard with this?

[@HBPowerwall]

You would need the right type... These beauties pull some serious amps

[@codyorlovsky8993]

This is cool... can this be powered by a power supply?

[@HBPowerwall]

You'd need one hell of a supply - this baby loves AMPS and lots of them and stupid fast at that.. I think 1000amps is a low spotweld current

[@mouldykev]

Great video, mind numbing music

[@HBPowerwall]

Yeh, some don't have the same taste as me .:(

[@jorgelmartinez2637]

Hi bought a kit but I am having a hardtime finding your plastic 3D designs. I dont have or want a FB and unless I signing it comes out blank not sure if thats where host the links

[@jorgelmartinez2637]

Keith took care of it. Thank you so much for inventing this thing! ITs Awesome!

[@toekangbaterai9869]

New subscriber,

[@wojomojo]

What is the magical tool at 4:30??

[@heyallenify]

That's a ferrule crimper.

[@NavinBetamax]

@@heyallenify there is also a male circumsizer ......!

[@davidhope4959]

Firstly, love your videos. Very thorough and informative, especially for someone like me who is just starting out with recycling batteries and no prior electronics experience. I understand the benefits of going the spot welding route, but why change now when you have has so much success with soldering, and have the added safety of each cell having a wire fuse?

[@HBPowerwall]

Spot welding is SO much faster and cleaner (NO fumes lol)

[@dtec30]

hmm make an adaption to the contact holder and get a "dobot" to run in palletize mode for spot welding a whole pack mmm just a thought

[@HBPowerwall]

would run out of cells instantly - but i like the train of thought - even putting two cables and tips together do the four welds at once per cell but getting that level and even contact between all four would be difficult i guess

[@dtec30]

@@HBPowerwall not with the right spring tension on each tip

[@anthonycampos7417]

Hey, where can I find the 3d print STL files for the probe holder? Being able to hold both probes with 1 hand would be great

[@terryterry1655]

Any good and cheap data logger for three phase AC? Thx

[@HBPowerwall]

Not that I now of

[@thebrodnaxs8304]

Will you sell the adapter that you made? for the probes?

[@HBPowerwall]

Nup, but I can print one for you to pickup :)

[@thebrodnaxs8304]

@@HBPowerwall where would I pick it up?

[@HBPowerwall]

@@thebrodnaxs8304 Brisbane Australia :P

[@tugaric]

holy mother of batteries