The BEST CHEAP all-in-one 18650 Spot Welder?

ANOTHER CHEAP EBay 18650 Spot Welder. Does it work? Is it worth the money? Find out! You may be surprised! Affiliate Links
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[@littlehiawatha4870]

Thanks for sharing, very helpful. I bought an earlier model which appears to have been assembled and sold As New. Unfortunately it does not work. Do you know what the other IC Number is and what it does, not the TP4056. I think it is to do with switching modes? Hope you can help. Thanks again.

[@xilass]

can i use 18650 batteries to input of this thing?

[@RodneySolarCircuits]

Yes, but It would not work unless you put multiple cells in parrallel to get enough amp draw to make the welds. The welder operates @ 4.2 volts best, not sure if the circuitry could handle 8 volts

[@xilass]

​@@RodneySolarCircuits total 8400mah ok?

[@TriableMilk09]

So the only way or ways that I found it to weld 0.15 is either use those nickle strips with the gaps in the middle and it also helps the weld if the spot pens are sharpened to a point, to an extent. All of these together on the highest setting you can spot weld 0.15, there were times where it didnt weld properly or was easily pulled off but it was mostly due to poor contact. Having the pens to a point really helps and it can spot weld the regular nickle strips but it is spotty, maybe I just didnt have proper contact to the battery.

[@RodneySolarCircuits]

Yea, It also helps if the battery is charged all the way. Once it gets down to 3.7v is no good.

[@shermkeys]

2 things dremel you batteries for clean contact and push down lightly for strong welds your welds won't hold if you don't do it correctly.

[@hedgehog5705]

How do you clean up the old battery s to get the bits off

[@RodneySolarCircuits]

In the description there are some links to side cutters. use they to nip and scape them off.

[@ps3customgamer]

How does it perform with a full charge?

[@RodneySolarCircuits]

surprisingly good. I truly enjoy this welder. I pulled it out last night for a little project. its compact and has a built in charger. The other welders you have to have a $20-50 charger aswell as some type of battery that could be $20-100.

[@rasakibola1116]

Good video. Please replace the welding pen cables with 10mm cable and try welding with 0.15mm nickel strip. This should do it

[@RodneySolarCircuits]

Great suggestion! I've got some ofc 10 awg wire.

[@electrojessy4270]

Rodney Solar-Circuits 10 mm2 wire is 7awg if i must beleave the conversion

[@rasakibola1116]

@@electrojessy4270 yes, 10mm2 is 7 awg.

[@electrojessy4270]

Rasaki Bola oow yes youre correct.The site i was looking on doesen’t have 8 awg lol.... bad site xd

[@crispy-k]

I wish someone could find a way to change the firmware to maybe add some higher levels instead of only 3. You can plug it into a pc with usb (no battery) but no drivers are being found. I'm sure someone out there has them though.

[@offgridwanabe]

So I need to buy one thanks for sharing

[@RodneySolarCircuits]

Yes! not bad for the price since it comes with the battery, Full Solution. But the welder at the end of the video is better if you have a battery for it.

[@TMS5100]

This thing is absolutely bonkers. I guess one day someone looked at the specs for this pouch cell, saw the nutty current ratings. What runs through one's mind... "what can I do with 600A pulses?". bingo, portable spot welder.

[@RodneySolarCircuits]

LOL!

[@corybrown4320]

I put bigger 8 gauge wire on mine and made bigger welding pens and now I'm doing 0.15 ok.

[@RodneySolarCircuits]

Thats a good idea. I was able to get good spot welds with this size wire/pins on my other welders.

[@earllivingston4520]

What size pin are you using. (Link please) I would like to do this upgrade as well. Someone should do a mod video for this welder.

[@jarkkotikka7372]

What material youre using for bigger welding pens. Don't know where buy them and no time for order China. Winter is coming :)

[@noobulon4334]

I wouldn't trust it enough to be sitting on top of the cell, seems like a hazard if you burn up one of the fets!

[@Bestsceneful]

15x0.8 these connections look weak and I think the classic design on a microwave transformer makes stronger connections, am I right?

[@RodneySolarCircuits]

Yes. This one is better for .1mm tab. The Red welder will do thicker stuff.

[@Bestsceneful]

@@RodneySolarCircuits red one, i know but requires a large battery size. I wonder if the 7Ah gel battery will be good for the red one, because it's the only one I have. Have you tested such a gel battery? Otherwise, the microwave oven remains. Btw, you wrote that 1mm would be ok, now I know why the sellers give the size 0.1-0.12. Thanks

[@WilliamVG]

Wish there was a good spot welder for around $100.00. These cheaper units are not up to snuff.

[@RodneySolarCircuits]

true, the red welder from my video does really good if you have a proper battery

[@georgeeden5835]

Time to order myself one 😁

[@RodneySolarCircuits]

yea but I found another one that is way better. Im making a video on it now I just need a few more days. This one will need a battery but can weld .15 and has better power adjustment. So over all it will be a lil more expensive cuz of the battery.

[@georgeeden5835]

Rodney Solar-anodes thing is, it is for a project which I needed to make a battery pack for which has already gone overbudget, I planned on soldering the 18650’s, practiced with a dead cell and it just seems stupid dangerous with the amount of heat it puts out, I am fine with 0.1mm as that packs I am making are only handling 1-2amps MAX

[@qrsimon]

Nice intro

[@RodneySolarCircuits]

Thank You

[@DIYwithBatteries]

I got some good old sanyo's lol

[@RodneySolarCircuits]

really, Didn't know that was possible. lol

[@DIYwithBatteries]

@@RodneySolarCircuits 😄 those are heaters and self discharge. 🤷‍♂️

[@RodneySolarCircuits]

Yea I bought a couple hundred of them for cheap and maybe 40 actually tested ok, still wouldn't use them for anything. The rest got hot and wouldn't charge over 4.1 volts.

[@DIYwithBatteries]

@@RodneySolarCircuits yeah!

[@DIYwithBatteries]

@@RodneySolarCircuits some times the wraps get melted 😵