DIY Battery Tab Welder - Car/Bike Battery
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- เผยแพร่เมื่อ 4 ต.ค. 2024
- Just a short demonstration of my DIY battery Tab welder I made to aid me in making an 8s4p lithium ion battery pack for my electric longboard.
The batteries I'll be using are LG HG2 18650 3000mah 20A.
Momentary switch used: tinyurl.com/y9...
Update on this DIY Spot Welder: • DIY Battery Powered Sp...
i like it, its simple design but works good. I already order a solenoid to build one like it. Other ones I seen use expensive high voltage capacitors or microwave inductors. Good job.
jony joe thanks! I've actually upgraded this since in made this video, it works much better. I'll post a new video and/or put some pictures on my blog soon...
Thank you!, this seems so much easier and safer than messing around with house mains and hooking up to some microwave part. Although this is not innocent either. Totally will try this
For just popping some nickel strips onto cells, this is absolutely all you need. All the big like, real spot welders I've seen are way too combersome for this type of thing, and surely overpowered. Not to mention, they'd be entirely unsuited for this type of work, just because of how they're set up. You have to have an electrode on each side, which you can't do with a battery cell. And a little 12v 200amp battery might give you a tiny little bite, but nothing the least bit dangerous. Hell, I've accidentally, and purposely...grabbed coil wires on a bike or car that are 30k. Most likely wouldn't be more than a little tingle, like sticking your tongue to a 9v. Only a bit more amperage...
Kid crying in the background cuz his scooter wouldn't start now when that solenoid is missing 😂😂
Great videos 👍🤘💪
Kristján H Jónsson lol
hahahahah
thanks man! exactly what I was looking for
Me too..!
It so simple man! Great job
Haha love the kid crying! My kid jumps into my videos all the time! Wow, what a DIY spot welder! That weld went all the way through the nickel!
It would of been nice to see the micro-ohm readings on those connections or do a ampacity test to see what it can handle.
Excellent . .. iT WAS working very well ...thanks
Smart video thanks
Thanks! 👍🏻
Good job Kevin.
rojitor roj thanks man. You should see my update video :)
I really wished you showed exactly how you did this. Not just the finished product. I can see you are using a motorcycle starter solenoid. The trigger switch is nice. The connections would have been nice to have seen. Could you show which cables are positive so no can screw up on this setup. Also doing a UPS system for your computer and router connection would be awesome.
Thanks. I was thinking something like this would work. Nice to not have to try it for myself :) I suspect this leads to too long of an "on" though. A microcontroller would be one option but I was also thinking a sliding switch might work.
Chaos Corner see my update about this here th-cam.com/video/b_kGgPVrcCI/w-d-xo.html
Cool. I saw the other update but this looks more comprehensive.
Have you tried an auto horn relay, they might offer better performance for 'short durations'? A normal 'doorbell switch' could be 'flicked with a finger to get the 'shortest pulse'.
Make a diagram ...how you connect the solenoid...please.
julio cesar vargas watch his updated video
Excellent ....can you list the exact specs of the switch you are using?
i am a fan!
i sent you an e-mail to improve the rod conections to the nickelstrip!
3000mah = 3ah = 3A (amperes) for 1 hour. Where did you come up with 20A? An 18650 lithium ion of 3000mah capacity can put out a 20A current, if that is what you mean, but only for approx 8 minutes and they will heat like a bad frog.
Paul Andrulis u don't now about 18650 battery
Are you using a car battery
The one in this video is from an ATV
I wondering, maybe temperature of welding it's too high for batteries!
telosfd th-cam.com/video/o1NFbchHeM8/w-d-xo.html
Si pero esta alta la temperatura
Hi, I'm needing to repair a product where the spot welded 18650 came loose. I do have a motorcycle battery, but no solenoid. Do you think a second person could touch and remove the battery cable quickly? I literally only need to do 2 or 3 zaps so I'm trying to save time and money by not buying a solenoid. Thanks for any help.
Could u skip the solenoid and just wire the switch
Joel 1 no because that switch cannot handle anywhere near the amount of amps running through it, 200+A!
Technically you could make a momentary switch with two copper flat bars, like a Morse code switch, but I don't think you'll get the timing right.
ok...why is the + and the - going to the switch???
great video where can i get the nickle from
I like your spot welder. I can not get mine to work. what is the gauge of power wires
donald rider you need 16mm² wire
Hi, thanks for your video, it's very interesting but i never seen a solenoid. Have you a schema for connections of your circuit ?
I don't understand how you connected the solenoid ?
Thanks again, very good job !
The solenoid is a mechanical switch that sits inline on the positive wire and rests at breaking the connection. When you feed the solenoid 12v DC it will mechanically join the wire together to let the current flow, remove the 12v DC feed and it breaks the circuit again.
Look on ebay for 12v Solenoid switch or relay. You need as many AMPs as you can find. Min. 150A.
Thanks, So sorry but i don't understand all you said on the video (i don't speek english very well). You said me i'll need AMPs but i don't see on the video where you connect them ? And i would like to know how you connect the two yellow wires to the swich, is it a bipolar switch or one of the two yellow wire is directly connetc to solenoid's black wire ?
Thanks !
do you know how many amps is max output for your solenoid...with the bike battery??it is like AVE s but you use a more compact and cheap solenoid...are you sure this size can provide above 150 amps...i dont think that 300cc engine needs that power for start.....maybe under 50 .....really dont know..but in a mechanical OLD book i have they used to say around 100-150 for a mid sized EUROPEAN car...i say european cause most of them had have much smaller engines
GIANNIS LYMPEROPOYLOS the solenoid is rated for 150A but the battery can output 200A
This isn't the best design or materials though. See my update video. Link in description.
How much current can those welds take, once you're using them on actual battery tabs?
As much as the nickel will take... About 40-50A continuous, about 150A burst for a few seconds. 200-300A+ and it will glow orange and fuse out within a couple of seconds...
Can we use a relay instead of the solenoid switch ???
Zana Hasan as long as it's rated for a few hundred amps, yes. The electro magnet in a solenoid is much more powerful than in most relays though so there may be some issue with disconnecting.... But it'll probably be fine... Try it ;)
You failed to show and explain the connections to the relay clearly....what is use of this vdo?
Most people with common sense can work it out 🤷♀️ I suggest that if you can't work it out, you don't try to build it.
Can you still do this without the relay? Is directly shorting it from the battery possible for weld?
If you have a switch that can handle the amperage. All the solenoid is doing, is allowing you to run a lower amperage through the switch, and adds a degree of safety. But as long as your circuit can handle a dead short across the battery, it'd be fine.
The battery is 6ah?
the electrical connection is not clear
especially with the solenoid
unfortunately I do not understand English
I translate with google translation
please put the schema electric
What is the relay current rating did you use?
My one is rated for 150A, but I'd recommend higher for safety.
@@darkkevind thanks!
Why do you need a solenoid? Why can't you just use the momentary switch?
Josh S most switches like this one, absolutely cannot handle the amount of amps going through the circuit when it ultimately shorts for doing a weld. Each weld pulls around 200A, which is what this battery is capable of delivering.
If you tried that, the switch would melt on your first weld because the contacts inside are only rated for around 6A.
Does the momentary switch only take a small amount of amps?
Yes. It simply activates the solenoid/relay.
Why does this work and when I do it its all sparks and bursts? I've even timed my solenoid with an edge-triggered monostable flipflop... Next up I'm gonna try some very low-ohm resistors in series with the probes to limit the current.
Adrian Schwizgebel what CCA is your battery?
Constant current output? 170A, it's a motorcycle battery to be precise.
Adrian Schwizgebel no, it's cold cranking amps. It's basically what it can deliver momentarily.
learned something today! sooooo, what does that mean for my setup? is is it too high or too low? I'm currently experimenting with the mentioned resistors, already busted one.
How many battery amperes did you use for this spot welder...can I use the battery 12v 5.0ah???
Ah doesn't matter. You need to know a how many amps it can put out in short bursts. Most batteries have a CCA rating. Cold Cranking Amps. It needs to be at least 300A, no more than 500A.
@@darkkevind Can I find out the reason why my place classification Nickel Plate does not stick strongly to the battery, I use a 30A relay and a wire size of 2.5mm ..
@@MARK.NAN69 probably the 30A relay... The one I use is rated for 150A.
whats the solenoid for
isn’t solenoid a valve for gas or fuel? why not a relay ?
Solenoid switch explained: goo.gl/images/ZB7ygh
thank you darkkevind,
It is the same principles as relay, but I think somewhere else I saw solenoids are for controlling flows of gases or fuels. May be there are solenoid switches and solenoid valves.
@@petaabay3984 no, a solenoid switch is used in every fuel engined vehicle to power the starter motor.
As a layman of vehicle, I would never understand. But I have check up the internet and confirmed there are solenoid valves exist.
en.m.wikipedia.org/wiki/Solenoid_valve
can i use 12 volts power supply in solenoid starter?
That's what it needs...
can i use an electromagnetic solenoid switch?
Koulouri err, I think so 😕
I tried it and I used the metal tabs I took off the batteries but they get red but won't stick to the new battery I am trying to use.
Or could u use a relay?
That essentially is a relay. Works exactly the same, but a starter solenoid is built for the full power of the battery. As long as a relay was rated for whatever amperage you're running, I'd say it would work. But a solenoid would probably be cheaper and easier.
where do you find such a small solenoid?
countryside eBay. Any ATV or scooter/motorbike
Hi, very good job! Great!
Can you give me an (an example) eBay address so I can buy a solenoid as your please? Very THANKS! :)
This is my newest video on this welder, it has a link to the solenoid in the description. th-cam.com/video/o4NaDMoEHxU/w-d-xo.html
Very Thanks!
may be in a motor bike starter
Can i use this battery for usb fan?
I guess so... Depends on the voltage...
@@darkkevind thank you sir..
Improving the copper rods alignment during a spot welding procedure.
th-cam.com/video/r3jaTjxiZqE/w-d-xo.html
maybee go look after the lid for 5 min....we will still be here when you grt back.
He was with his mum... He's a Mummy's boy!
I had to dislike and i'll tell you why. If you hold the button down current flows continuously which is not good all round. Rewire or get new solenoid. And watch a video where it is done correctly. Maybe try mounting button where you can quickly tap it , fast. Because what I'm seeing in this is not good.
MadCowTv you need to watch some of my other videos...
Looks bad!
My setup is using much thicker wire than that and yet my setup doesn't work. I don't understand. I'm beyond frustrated.