Sequre battery spot welder review (18650, 26650, 21700 etc)

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I think the review speaks for itself and I'm now using it as my 'go to' spot welder. For anyone thinking it, yes the interface looks very similar to another well-known spot welder but I prefer this one because nothing seems to get hot and the welds are perfect! I use a lot of Amps (500-650) to make the weld contact area much bigger because this is the only area that current flows through. Doing a crappy weld where the nickel has only just managed to fuse (indicating nothing but an adequate weld) will increase resistance and not get you the power you need. I'll be doing a video soon on how to achieve a PROPER weld because it annoys me when people review spot welders, pull the nickel off, reveal the smallest contact area and announce it as a 'perfect' weld when clearly, it's not!
Amongst other unknown things about me, I am a fully qualified welder (seriously) 😁

[@jackdanielsbmx]

I love how honest you are with the supplier hahahahaha

[@girlsdrinkfeck]

i suppose that metal rod in the handles quickly gets rid of the heat from the tips

[@EnglishTurbines]

My homemade Gas Turbine has a Combustor made from Inconel sheet... Microwave Transformer job and timer ..those tips got hot too, and the arms...Worked though...😀🇬🇧

[@Vortecks]

Now, that's the PROPER use of a microwave transformer for spot welding. Using the same kit for doing batteries is a bad idea because it fuses by resistance heat, rather than spark welding.

[@EnglishTurbines]

@@Vortecks Yes, in my case the current passes through two pieces of metal with the tips opposing each other. The current flows from one tip to the other in the traditional way. This surprised me when is see batteries done in this way that it worked, and didn't just melt the tab...🤔🤔😯

[@99unclebob]

I love the screwdriver, pliers and the left handed metric crescent wrench LOL, nice review

[@-_Robert_-]

Did you tryed allready 50 welds and over in row (one by one)? get hotter and hotter? I'm still using malectrics pins and they are very hot after some welds so after 15-20 I must take a break.

[@shektek]

Just started using this. .20 strips need 70ms @100% pulse! Using a car battery for power supply with 6awg cable. Things get hot. I suspect the battery can’t deliver 300amps required. Any thoughts on how power source affects weld current?

[@smartazz]

I like it. Looks like the 6AWG cable takes the heat away from the pins. I want it

[@lordsqueak]

That was actually a good honest review

[@Dave64track]

Looks like a great piece of kit and does a good job.

[@olivernice8291]

Just got one of these and it's great

[@elpabloncho]

does it have capacitors inside or all the instant power comes from the lipo?

[@Vortecks]

It's purely lipo powered mate.

[@ghostdog4330]

That was surprisingly interesting.

[@andyg7334]

Hi Tony, did you see any over current protection on the inside (there is no mention in the manual)? It possibly just relies on wire and battery (internal) resistance to limit the current. Hopefully your monster pack won't start eating the FETs!

[@Vortecks]

No mate, there's no internal protection. I ran it at > 650A with a 0.3mm copper strip and a 25ms pulse for quite a while and nothing blew.

[@neilkime4065]

looks very nice so tempting would not mind one at all

[@Vortecks]

Buy one.... you know you want to 😁

[@caRpetbomBer1]

Hey are you still using this as your main spot welder? I picked this welder up not along ago. Im using it with a Zee 3s 7200mah 80c battery which meets the requirements. I was working on my first battery build and everything was working butter smooth. Super clean welds. Until out of the blue my welder just starts blasting through my nickel strips. I was only using 0.1mm strips with a pulse timing of 5ms and it putting holes right through. I emailed the company 3 times and i really got no response.

[@Vortecks]

Yes, I still use it with zero problems. A few points to note..... fake nickel (it's actually nickel coated tin) doesn't perform anywhere near as good as pure nickel. If you get sparks, it's fake nickel. I've known people who bought 2 rolls of nickel and they changed half way through. The first roll was pure nickel, the second was fake so it blew holes in everything. When welding any nickel, you need to make sure that the strips are flattened after you cut them - any air gap between the nickel strip and battery will blow a hole in it. Make sure you clean all surfaces with some solvent (obviously, make sure it all evaporates off afterwards) because dirt/adhesive/dust/engineering oil causes a lot of problems. If they're reclaimed cells, make sure the terminals don't have anything left over from last time (grind off all traces of previous welds). Do not sharpen the tips but make sure you don't have any black carbon build-up on the ends - the tips need to be clean and slightly rounded to get a better contact area which spreads the current and gives a better weld (and also stops it from blowing holes in everything). Dial the pulse duration down until it doesn't weld properly and then dial it up by 2 points. I don't think it's the welder, it's something else that has changed.

[@caRpetbomBer1]

@@Vortecks Yeah i figured out the problem. It was me not pressing down hard enough lol. I have no idea where to even find pure nickel strips. Im in Canada buy the way. Thanks for the response.

[@sup3rbird]

None of the UK "dealers" on their website list the welder much less have it in stock. Where did yours come from? My Malectrics one failed and was repaired under warranty and I've just blown it up again. In the meantime, I blew up two cheapo ones while waiting for the Malectrics to come back. I would like one that keeps working.

[@Vortecks]

It came from China but I didn't pay any import duty (lucky?). It only took 3 days to get here!

[@antomarkic7190]

pure nickel strips?

[@joequixotic3039]

I have one of their battery powered thermostatic soldering irons and it is really good. I'm glad to see that their other products seem to be good. I have a Malectrics spot welder and the recommended 5,000mah 65-130C Lipo (mine is from China Hobby Line). It would be interesting to see how the Sequre works with a battery like that or whatever their minimum or recommended battery is. Not everyone is going to have a 1,000A capable battery...

[@Vortecks]

Have a look at the video again. (0:42) In the manual, it says a 5000mAh with a minimum of 60C which is 300A. My welds are around 700-800A because it works much better and welds differently. I'll be going into detail about spot welds and the different types soon......they're not all the same.

[@joequixotic3039]

@@Vortecks yes, I missed the manual part, I just want to see how it acts with the minimum battery because that is what most people will use.

[@Vortecks]

@@joequixotic3039 I'll also do a video on using supercapacitors to take the brunt of the current. You can use a relatively low output battery then 😁

[@joequixotic3039]

@@Vortecks that would be great, thanks.

[@tony-ma]

Hi mate, where do you buy quality 18650 batteries?

[@Vortecks]

Here mate: www.fogstar-wholesale.co.uk/ They're the cheapest in the UK and guaranteed genuine cells. They do have a minimum order amount though. I did a video a couple of years ago when I went to collect some: kzbin.info/www/bejne/oIvRf2ppitmtfbc

[@skinnwalk3r586]

hmm, watched another one that runs off a internal battery that can do 1200A, not sure where i saw it, but that was also a good small spotwelder, you charged it with a typer c or micro usb and it would discharge itself to 50% if it hadn't been used for 5 days

[@Vortecks]

That one uses supercapacitors. That's another video I've still got to do when I get time 😉

[@jaylord55]

hell its cheaper then the other one you have if you just get the welding leads and looks much more refined and seems to look like it works better

[@Vortecks]

I'm honestly impressed. As you can tell by the video, I started out with nothing but scepticism but I was wrong and it does a fantastic job!

[@royjennison3916]

very interesting Tony

[@jeffreyhoffmann2176]

Doesn't Banggood sell the exact same thing or is it fake?

[@Vortecks]

Banggood are one of their outlets so it's real mate.

[@jeffreyhoffmann2176]

Thank you.

[@DeltaCmndrElite]

No teardown! i am dissapointed tony!

[@vortecksengineering884]

I did do it but only on Patreon mate - there's a sticker on the side which forbids it. Maybe in the future, I'll release the video 😁

[@jamieniche]

Use some isolation rings!

[@EnglishTurbines]

Chinese PVC coated wire, ultra rigid due to them not using plasticiser to save money. I absolutely DETEST them for doing this...SO bloody annoying....Rant over, my pet hate...😡😡😡😡😡😡😡😡😡😡🙄🇬🇧

[@Vortecks]

Yep..... It's one of my hates, too. Things like balance leads - there's no reason why they can't use silicone insulation but they don't seem to listen.

[@EnglishTurbines]

@@Vortecks PVC...it's cheaper than Silicone coated and more durable...I fucking hate it. Bought a new electric razor the other week, same thing, cable with folds moulded in it.... FFS...😡😡🙄🙄😀

[@felonebike9859]

Can you set it up to use a regular plug into 110?

[@Vortecks]

No, sorry. They use far too much current and much lower voltage to connect directly to a mains outlet (you can convert a microwave transformer but I'm not going into that one). You're better off looking at the Sunkko spot welders for 110V www.banggood.com/custlink/D3DdOPMmh4

[@felonebike9859]

@@Vortecks i have a Sunkko 788h already and I'm not a fan to say the least. I was looking at your links and seems like those aren't that bad after all. The thing I'd like to know now is how many welds you get off one of those batteries? And are they really a good machine? Seems wonderful. lastly THANK YIU for your response.

[@Vortecks]

@@felonebike9859 I get virtually unlimited welds from my battery but it's big (12V - 64Ah and capable of delivering over 1000A) and expensive and built for the purpose. The welder is good, I used to have a Malectrics spot welder which never let me down but it was a bit cumbersome and now, I only use the Sequre spot welder.

[@felonebike9859]

@@Vortecks I heard good things about the malectrics and kweld. but the sequre seem the best overall. Thanks

[@basingstokedave4292]

foot pedals cable thick to stop damage to easy

[@Vortecks]

Well, mine is damaged because it's too thick..... I lost my temper. Now I've made the cable thinner, it works perfectly 😁

[@hobbykinghorton6201]

Is that a mantis 85 I could see?

[@Vortecks]

It is 😁 kzbin.info/www/bejne/infOgYeuo9-snbc

[@hobbykinghorton6201]

Brought one myself surprisingly fast. First go on it tho I nearly took a finger off 🤣

[@neilkime4065]

tony you seen the one made out of microwave transformers search this guy Donny Terek --DIY Spot Welder From Microwave Transformer | HOW TO let me know wot you think cheers tony

[@Vortecks]

I made my own out of a microwave tansformer at one point but it was never successful in creating a decent weld. All they seem to do, is weld the metal by heating it up and melting it rather than an instantaneous spark weld. They don't produce enough instantaneous current to weld properly but that doesn't mean they don't work! I don't like the idea of welding by heat alone and I don't like the idea of working with 240v.

[@girlsdrinkfeck]

@@Vortecks cant beat a nice clean DC current from a cell pack

[@basingstokedave4292]

stop it activating when your playing with it . lol

[@j.d.3269]

$219.99

[@szaas1jjsjjsklk666]

That was actually a good honest review