The Best Spot Welders Are Only $20!
HTML-код
- Опубликовано: 4 июн 2024
- Hello folks, 🔋BattTube here. Today we will be looking at one of these cheap PCB Spot welders, There are several flavors of these PCB-interfaced battery spot welders but most of them are basically identical in how they operate, Some just have more MOSFETs than others (More = More Current = Better). These spot welders beat any Sunkko spot welder there is! I will be showing you how to set them up, How to choose the correct battery, How to spot weld 18650 cells, And some tips and tricks to get the most out of these spot welders. If you're in a rush you can find these on Amazon with a bit of markup from a local distributor. If you can wait then i would suggest getting the best looking one of aliexpress (More MOSFETS = BETTER). BIFRC makes the best PCB spot welder (in my opinion), with almost TWICE the MOSFETs as the one shown here, It's a budget K-WELD.
Chapters:
0:00 INTRO
1:08 What the kit comes with!
2:21 PCB component installation!
5:47 PCB solder pad fortification!
9:13 Choosing the right battery!
13:12 Connecting/Soldering battery & welding connections!
17:54 Connecting Battery!
19:54 How to turn on & operate!
20:49 Testing the different current levels!
24:56 Welding leads tips & tricks!
28:12 Like & Subscribe!
👍🔔 Thanks For Watching! 🔔👍
Please Like and subscribe if you enjoyed it and click the bell icon to keep up to date with new uploads when they are released!
💰🛒 Linked Products 🛒💰
*Amazon affiliate links
- PCB Spot Welder -
US: amzn.to/3FNa73L
CAN: amzn.to/3FMC8Zm
📰❤️Follow & Support❤️📰
Patreon - / batttube
Utreon - utreon.com/c/BattTube
Facebook - / batttube
Discord - / discord
Rumble - rumble.com/c/c-1430223
💰🛒 Products I use 🛒💰
Lomvum 6000c Multimeter:
CAN - amzn.to/3J4BIiw
US - amzn.to/3HOUxVx
Baku 601D Hot Air + Solder Station (Hako knockoff):
CAN - amzn.to/3Cl24dQ
US - amzn.to/3CkTDzf
CHEAP PCB Spot Welder:
CAN - amzn.to/3Kr1Xjy
US - amzn.to/3pKsWia
Sunkko 788H Spot Welder:
CAN - amzn.to/35TE9WG
US - amzn.to/3IURAUP
Wire Strippers:
CAN - amzn.to/34lmRkK
US - amzn.to/3HQ28Dt
Mic - Blue Snowball:
US - amzn.to/3HVnDCO
CAN - amzn.to/3HPAwOU
💡💭 If you have any suggestions or ideas for future videos please be sure to leave them in the comments section below! Thank you. 💭💡 
Наука
The market space for these little things has expanded greatly in the past year and the design of them have changed slightly for the better, Fixing any issues this generation may have had. I have been very busy with moving multiple times this past year but i finally got a bit of a shop set back up to work and an updated video will be in the works!
Sweet please link to it somewhere like a pinned comment and or discretion only found this comment while scrolling the comment section
Just a quick note to thank you for your time in helping us newbs learn. I’m sure it’s difficult to find a good balance of information so that newbs can learn while not boring more knowledgeable visitors. I appreciate your attention to detail with good video. I’m sure it takes *a lot* more time than we realize and want to be sure you KNOW your time and effort is very much appreciated. For selfish reasons,I hope you keep it up! 😅
Really awesome video. Well articulated and I appreciate the various tips you provide as you are assembling it.
You are doing a great job and I wish your channel much success - from fellow Canadian
great job, eh
Good and detailed information on this video. 👍
This is a great video. Watched the video and then bought the spot welder. Assembled the welder and then re-watched this video to figure out how to use it as there was nothing with the welder. I never spot welded before and using a 3S 5200 mAH 50C Lipo battery, on setting 3 of the welder I'm able to get good welds.
Glad to hear!
@@BattTube After I posted this I started having trouble with the welder shutting off each time I welded. I think I may have accidentally shorted out my board (my fault). Is there any suggestion on how to check the mosfets? I'm using a 5.2 amp 50C Lipo
I might need to order a new board.
Just curious about the health of the battery and state of charge, the spot welder will shut off if the voltage drops to much during the weld. 50c at 5200mah is plenty of amps for the spot welder so another question is the size and length of wire used to connect the battery? Have you tried another battery?
@@BattTube The battery is good and I tried another. I'm going to shorten the leads. Question, if more or larger caps are used, what would be the effect, if any?
@@daveworkman8845 Cap is for regulating power supply for control circuit. Has nothing to do with the welding process itself. The mosfets are the key. For more current you need more mosfets.
Good stuff!
will my 3s - 2200mAh 20-30C lipo Turnigy battery work? it seems 44Ah - 66Ah rating.. will it be fine? I have very similar but violet color Spot welder DIY with 5 mosfet
Many thanks mate!
Have you heard of anyone adding big capacitors in line with these boards parallel with the battery? Just winder if would help with thicker nichel.
Mine came with a 1000 mF cap and the welds are really weak. Can I just swap it with a 2200? Otherwise it seems to be the same kit.
Hi got one of these + a new 12 volt battery (display reeds 13.5) the welder is giving me the peeping sound when pressing the two pins, but nothing happens further, any ideas?
If you overweld and put a hole in the top of your brand new replacement battery as you demonstrated, and if it appears to still safely function, can the hole be resin filled or solder capped to renew the battery's lease on life?
Clarification about LiPO C ratings. The C rating X the total capacity of the battery (in amp-hrs) gives you the maximum discharge rate that the battery can sustain without damage (example a 10C 2.2 amp-hour LiPo can safely discharge at 10 X 2.2 or 22 amps). However, battery current output is NOT limited to the C ratings, the current draw will depend on the load and the point where smoke begins! For the 10 C 2.2 amp-hr example, with a dead short it will probably deliver hundreds of amps, stopped only by something melting, complete discharge, or catastrophic battery failure- all bad! Note also that unless labelled differently, the C rating is for sustained draw, LiPOs may tolerate higher outputs (again determined by the resistance of the load) if they are for brief periods and there aren't too many of them.
As you mentioned in another comment, Due to the low resistance, these things will put out as much current as the load will take until the weakest link fails. Im sure the requirements for these spot welders are based on in-house tests of the average current draw on the highest setting. You have to be careful because some lipos will give a "pulse" current rating or a "peak". But often those packs will give you both peak and nominal/sustained ratings.
can I use a 3s 2200mah 20c lipo? Safely? Thx
@@Geronimo72 same question with the 3s 2200mAh but 20-30C discharge (Turnigy)
@@rocheuro Turnigy gives relatively real world C ratings so their 20C-30C packs perform as well as the bullshit 80C packs (roughly). I'd say 2200mAh is a bit small but it should do ok. The kWeld recommends the Turnigy Nanotech 5000mAh 65C-130C but that thing has REAL mosfets from Infineon (I'm pretty sure they are Infineon mosfets). All these boards have fake mosfets theres no way they could sell a board with mosfets that are $2 in bulk (so $16 in fets) for $20
Which thickness does your nickelstrip have?
Good video. Thanks!
An easy way to remember whether to use "to" vs "too" is when too means excessive, think of toooooo many Ohs! Too = excessive
That one always gets me. 😅
@@BattTube gets lots of us!
@@BattTubeme two.
Why would you solder on the PCB where the ring terminal is going to sit? Contact resistance is huge when you don't have a nice flat surface...I can understand adding solder to the traces even though solder has fairly low electrical conductivity (less than pure nickel or brass I believe).
You've probably reduced the contact area in half plus does the solder have any better electrical conductivity than the pads on the board themselves?
Edit: and the mosfets are in parallel so the board is not limited to 300A
With the rig you put together, why would you suggest a second battery in parallel if what you have spans too little to too much welding? Are we tinning the lily here? Im unclear as to what would be gained.
Omg I was told by the seller in the description and in message to make sure my battery was POWERFUL enough, not WEAK enough. No wonder mine broke on the first use. I used a 50c 4500mah lipo.
Btw you did the math right the first time, 5Ah*40c=200A.
And for the green one 3.3Ah*130c=429.
@@mediatour8898 I got really confused there for a minute lol. I wasn't to worried about the current handling of the green one as it was just way to much for the spot welder anyhow. In hindsight i would have calculated them before recording the take, But that's part of the learning process i suppose!
Yours blew at a max (C ratings are bullshit, Wayne Giles ESR Meter is the best way of accurately measuring a real C rating) 225amps?
My son hooked the leads backwards on in the 12v car battery we were using now it turns on and beeps through different setting ms but it’s not welding do you know what may have happened?
Exactly that, the polarity was wrong and it's probably fried it. That's unfortunate!
Hi, can i use a 20/30c 2200mah 3s lipo? thx
130c min
Spicy Pillow!
It’s baffling to me how people seem to always have $500+ giant cumbersome desktop spot welders when these are so easily available.
Because these will break after a while and cant weld .3 nickel properly
Have you tried it with a small car battery?
No but it may be worth making a video about.
How do these have power levels if they don’t regulate the draw from the battery?
I would guess the different levels are just multiple pulses of the same duration, or a single pulse of a longer duration.
Exactly.
Good question- I am sure that the power levels ARE regulated by the devices, likely by a combination of draw and time. The battery is "dumb" and LiPOs have a low internal resistance so they will deliver power based on the load resistance, up to and beyond the point of some sort of failure.
i am still scared of those lipo's from when i was building drones.... them going thicker on its own was really scary. can u use a car battery for these spotwelders?
Car batteries don't handle pulse current as well but yes, one with suitable amp output. I have a tote full of lipo that i am afraid to even budge, unsafe really, don't be like me 😅
I just wan't to know how the comments on this video of yours are showing up in my notifications on my video of a similar product? Someone makes a comment on your video, and it shows up like they made a comment on mine. Not on the video itself, but the notifications. This is jacked up. Any ideas? G.
Can I use 68Ah car battery ?
Im sure that would work just fine!
40C x 5Ah is 160A?
it should be 200A
22 minutes later, we do our first weld.
The video has chapters for this purpose.
One constructive criticism: leave the various notes...especially the long ones on for few more seconds. We are unable to read it all, and have to rewind and catch the spot where you put it on. Same thing with image inserts. You display them way too short of time. Cheers
That soldering tip is making me cringe 😆😂
Great job adding the copper rails, most dont and end up with poor results, the copper rails are what makes these work correctly, To many bad reviews from other folks with poor mental abilities XD
Wow I've never seen solder dry before
Wow I've never seen camero spelled like that. Correct yourself before correcting others.
Pull it out?? Buddy you had to slide it a whole
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!
I’m a little confused. You say that lack of pressure creates a high current arc that melts the nickel “DUE TO HIGH RESISTANCE OF THE BAD CONNECTION” and TOO HARD LOWERS THE RESISTANCE TO HEAT ENOUGH!!
I DO BELIEVE YOU ARE ASS BACKWARDS ON THAT BUD.. SOMEONE CORRECT ME IF IM WRONG. BUT, IF YOU HAVE LOWER RESISTANCE YOU ARE GOING TO GET MORE HEAT THAN WITH HIGHER RESISTANCE. AND IF YOU HAVE HIGHER RESISTANCE THEN YOU WONT HAVE AS MUCH CURRENT GOING THROUGH. ARE YOU PICKING UP WHAT IM LAYING DOWN? LOW RESISTANCE = MORE CURRENT. HIGHER RESISTANCE = LESS CURRENT.
PS. TOWARDS THE MIDDLE OF THE VIDEO WHEN YOU HAD THE 3 BATTERIES OUT THAT THE BOTTOM ONE WOULD RELEASE ITS FULL POTENTIAL THROUGH THE DEVICE.. THAT TOO IS INCORRECT.. I MAY BE WRONG, so AGAIN SOMEONE CORRECT ME IF IM WRONG. BUT IF YOU HAD. 2000 amp battery it would be perfectly fine too use as the battery just doesn’t dump all that power into something. The device you are using draws the current that it needs. So, for example if you have a 12v fan that runs on 1 amp. That device will pull 1 amp- WHAT IT NEEDS- and not just leak current into the fan. It just doesn’t work that way.
It goes against common sense but more resistance will melt the nickel. Think of bad connections in homes that start fires. Its resistance heating stuff up. So its a matter of finding a sweet spot between getting enough current but also getting enough heat. Thats why you don't press down super hard with your electrodes, just light pressure and you angle them slightly so you are using the sides and don't have super pointy tips (reduces the contact area)
@@ericklein5097Common sense also says you can sound louder if you boldface your capital letters.
You can remove sticker from buzzer sir... 😁
Nah it's too loud lol, i use it as my volume 🙃
@@BattTube owh... oke oke... 😁😁😁
I live in urban Baltimore. The less noise the better. You wouldn't want the buzzer to drown out the sound of nearby gunfire.
You never said the 2nd battery was 50C. 40C X 5 is 200, not 160.
Wft are you smoking?
I got confused there for a minute, My first answer was the correct one.
"Wft"? 🤣😆🤭😵💫
I bought one because oof you video but sucks even on 5 power can't solder nothing
What battery are you using?
@@BattTube my old bmw battery I has 12,89v still good for this right?
@@marine1718 @Rogério Figueiredo a lead acid? I wouldn't recommend using lead acid, though you can assuming it can produce enough amps in a short pulse. but it could be the size of wire used to connect the battery and the connection
@@BattTube yes lead acid I have mounted long wires maybe that is why it doesn't work
You want the shortest cable length you can get and use at least 10 guage wire but i suggest 8
My opinion. If you buy one for$100. You Better be making money w it. W. BATTERY PACK ASSEMBLY THERE IS A THIN RED LINE $$$ I Can buy a bottle batt 36v for 170. Last one lasted 5 years. Watch those $$$
01:23 -- High output current battery
NOT Hi Amp output battery
Understand that Amps (Ampere) is merely a UNIT OF MEASURE of the Current.
Learn the meaning of the words you use.
Undertake an extensive reading program to better educate yourself to a higher level
You can do it
Good luck and good bye.
For your homework -
Explain what voltage is
Also - explain whether EL-ectricity flows through the wire or along the surface of the wire.
Both statements are interchangeable, for the purpose of this video it felt more appropriate to say it that way as that was the unit we had to consider. As for those other notes, that's well beyond the scope of this video and there are many other better RUclips videos out there to explain all that. That's a whole debate in itself currently.
@@BattTube
NO = they ARE NOT INTERCHANGEABLE
What gave you that idea ?
Because you heard other poorly educated =- illiterate people say.
The words have different meanings that are simply beyond your
level of comprehension.
Your knowledge in this regard and knowledge of the English language is poor.
Undertake an extensive reading program to better educate yourself.
And had you been in my classroom - even with my youngest students
age 8 - THEY would be able to teach you.
Without giving you a detailed history of my background - you will not understand - and I have no need to justify this to you -
It is not a job application.
However - understand one important lesson -
If you are not teachable - you will remain ignorant and proud of it
until you die and learn very little in your life.
Good luck and Good bye
Example = Speed and Miles per hour are not the same thin
Miles per hour is a measurement of speed = as Amps is a measurement of current.
Make sure you get that into your head.
@andrew The use of "amp" here in describing current is short for the word "amperage", not the SI unit "Ampere" (abbreviated as "Amp"). The ambiguity is resolved by context any listener performs virtually subconsciously. You are being too literal.
As to the remainder of your comment, Mr. BattTube is busy washing the asbestos dust off his hands after realizing the white powder spilling out of the battery packs he disassembles without wearing nalgene gloves may, in fact, not be drywall dust at all. I will take the liberty of completing your homework assignment for him. (My heritage is Canadian, it's the least I can do for him. And Canadians are well known as "nice people." It's just the nice thing to do.)
Part 1:
Voltage is a measure of electrical potential. Electric potential is created by the separation of positive & negative charges. It is manifest as an electric field throughout space defined by the geometry of the charge separation & Coulomb's Law. A test charge within an electric field (conventionally noted as a small positive charge, +𝘲ₒ) will feel a force acting on it from the field. Just as moving a mass against the force acting on it in a gravitational field adds gravitational potential energy to the mass, moving the test charge against the electrical force acting on it adds to the electric potential of the charge. Gravitational & Electrical fields are conservative fields, meaning the difference in potential between two points within the field is not dependent upon the path taken between the two. Voltage is a measure of the difference in electric potential between two points in space, to include two points within an electrical circuit.
Part 2:
A property that makes metals conductive is that the electrons in a metal are loosely bound to the molecules & atoms that constitute the metallic structure. They can become unbound as "free electrons" by the smallest of forces to include the application of an external electric field. As a result, the movement of electrons will occur throughout an entire length of any wire constructed of metal. As unbound electrons, they also manifest their own point source, radially symmetric electric field that all the other free electrons will feel. Because they are all like charges, this mutual interaction will be repulsive so that all the electrons will want to be as far away from each other as possible in a minimum energy configuration. Thus, the free electrons will reside on the surface of the conductor, being held from escaping beyond by the positively ionized metal atoms of the wire. Like the surface of a soap bubble, the electrons will arrange into a minimum energy geometry.
A Point of Order:
Your terminology also has an issue. Technically, the phrase "electricity flow" is more ambiguous than even "amp" since the context isn't necessarily as distinguishable. There are two things going on here that the term "electricity flow" may refer to. There is the movement of the free electrons in a conductor, and the transmission of power around a circuit. They are coupled, yet distinct, phenomena. The electron movement, or current, POV for your terminology I have already described above. The other interpretation describes power transmission and involves an understanding that the energy of the current in a conductor resides in the electromagnetic field produced by the current & is completely outside the conductor. To demonstrate your understanding of this aspect of electricity flow, your homework is to reply with an explanation of the Pointing Vector.
*If there are any inaccuracies in my explanations, please call them out for me to fix so that I'm not spreading disinformation. I wrote this without consulting any reference material to verify I was explaining the concepts correctly. To the extent that this is accurately informative, credit should be given to the Physics Department at the University of Wisconsin - River Falls, & the Michigan State University Physics & Astronomy graduate school.
Are you able to re-write your text and format such text into
logical paragraphs - and not write what is an almost endless line of text.
Do CANADIAN schools teach writing and literacy skills ?
Per-haps were you asleep in class and not paying attention.
In addition the word NICE is a negative word as are many words
beginning with the letter N - and this applies to other languages.
The word you should have used is PLEASANT -
Do remember to use it in the future - choose your words carefully.
I will await your reply to be re-writen and formatted so I
can read it comfortably without suffering a Kopfschmerzen.
Study how text is formatted in books - Newspapers and Magazines.
Study the Chicago Style Manual for additional information.
I am familiar with the ' Chicago Style Manual '
having written and collaborated to write eight procedures
manuals for the USAF and RAAF prior to that - and much
later - two manuals for a Multi-National Petro-Chemical CORPORATION
( Total page count 2700 pages) (1500 + 1200 respectively)
The purpose of which was for the CORPORATE entity to obtain
ISO 9000 and ISO 9001 certification
-- Thus one had to be familiar with the CHICAGO STYLE MANUAL.
There are rules and protocols for writing such DOCUMENTATION
and Legal Documents.
Legal documents MUST use correct grammatical legal English -
not the peasant level English taught to the common people at the
CORPORATE GOVERNMENT indoctrination center - known as school.
Besides serving as an AIR FORCE PILOT since 1961 - beginning with
the RAF (Bomber command to be specific)
In the 30 years serving three countries - I studied Law - Electronics
and - Electronics & Elctro-Mechanical Engineering - specializing in Robotics -
Also hold a Masters degree Psychology and national security studies
and Risk management.
Following retirement from the Military I taught Law at Night College
as well as English and History In High School -
The most rewarding was working as a relief teacher and teaching students
age 7 to 10 --
They are logical thinkers and their mind is not contaminated with
negative social expectations that are considered appropriate by society.
These pressure groups aim to increases social acceptance buy that group.
In simple terms - classical conditioning - it is social brainwashing and
indoctrination to ensure the people fit into the common belief structure
of society and to avoid becoming independent logical thinkers.
Even parents teach their Sons and Daughters by repeating 'Don't be smart'
in the end the child (legal terminology) accepts that being 'smart' is
not such a good idea.
@@andrew_koala2974 Lol, okay.
These things are great until a mosfet, or all of them, explodes.Usually after maybe 6 to 20 welds.
There is no over-current protection, Your probably using a battery outputting to much current. The mosfets are just switching a short circuit in pulses. I have had no problems. Its also a possibility you got a bad unit?
Lol the case itself is $40. Sometimes just buy it lol
Why are you using expensive model plane and model car batteries? Haven't you heard of automotive lead-acid batteries? Like the kind that starts your car? If you are working at your own work station and not putting cells together in a booth at the county fair, you'll save money. These videos are pushing us poor civilians into buying crap we can't afford, that have no other uses, and that will wind up after little use in a cardboard box in the basement.
These were recycled LiPo. Your not wrong though, that's exactly where mine is right now lol
You can get a LiPo battery with the required C rating for like, less than 50$. A car battery is like minimum 100$ at least here in Canada
@@amogusenjoyereven cheaper, ever see those Shrimp cells batteryhookup has? There even cheaper but depending on where in Canada you are the shipping can be a killer. Cheers from Peace River
Lead acid battery is the worst battery, you can choose for a spotwelder. 99% of L.A bat. are too slow to build up the needed amperage. The correct lithium cells are the absolute best choice.
I've tried a sealed lead acid battery there no way as good as model air craft battery. I used a 5500ma battery the welds are perfect.
Good video
junk
is that pure nickel