🔥 Incredible life for an old laptop power supply! Few people know about this feature

In this video, "The Incredible Life of an Old Laptop Power Supply! Few People Know About This Feature," we show how an ordinary laptop power supply can find a new life and become an invaluable tool in your workshop. 🎥✨
You will be surprised, but from an old power supply you can make a simple device for welding small parts and wires. This not only saves you money, but also adds fun to the DIY process. 🤓👍
🔧 What you will need:
- Power supply from laptop
- Spark plug
- Battery powered lead
We will show you every step in detail, from disassembling the power supply to welding. You will see how easy it is to use scrap materials to create something useful and functional. 🛠️💡
Don't forget to subscribe to our channel so you don't miss even more interesting and useful crafts! Also like and share the video with your friends if you liked it. Your comments and ideas are extremely important to us, write them below! 👇💬
🌟 Watch the video until the end to learn all the secrets and tricks of working with a laptop power supply! 🌟
#DIY #fixitfast #powersupply

[@doug8718]

Nice idea of using a laptop converter for a spot welder. Suggestions for the future: If you're going to tinker with electronics, buy a soldering iron. When you wrap wires together, get in the habit of wrapping in a right hand direction. That way if you need to use wire nuts, the wrap will already be in the correct direction. Why in the world didn't you just chuck up the carbon rod in the drill instead of twisting/wadding up the sandpaper? Since all you used the rod for was to jam it with the wire in the sparkplug, you could have just used a file to make a flat side on the round rod...much faster. Keep in mind that the spark plug body is insulated from the rod, but not the electrode sticking out the bottom (underneath the curved contact). Your finger was very close to it, and if you happened to touch it and the "ground" clip, you will get a nice "surprise". Cover all of the bottom of the sparkplug with tape. Lastly, if you want to appear to know what you're talking about, the wires inside of a cord are not called "components"; they're just wires. Components are things like resistors, capacitors, inductors, diodes, etc.

[@jameshisself9324]

Suggestion for the future: Don't use wire nuts. Even in homes they are now understood to have been a bad idea. Anywhere else they are the height of stupidity.

[@user-mf5mt8tq5r]

Scam

[@arpadsoros6898]

It is an example. Hard? Idiot.

[@lukask7445]

"Your" finder was very close to become sanded.

[@finfinagan533]

Your dad is gonna be angry when he needs to use his razor knives, change a sparkplug, and recharge his lap top.

[@doknox]

🤣🤣

[@frankyvee1]

🤣🤣🤣🤣

[@biranit50]

wouldn't it be easier to put the coal rod into the drill and hold the sand paper to polish it while it turns?

[@vortexan9804]

It would be much slower.....think of surface speed.

[@googleYoutibe]

Папа на свечном заводе работает? Рейтинг продаж свечей😂

[@biranit50]

​​@@vortexan9804the same! the inner diameter of the rolled sand paper is the same the outer of the coal rod at the point of contact! Just the grip of the drill on the solid bar will be better than on the hollow rounded sand paper!

[@Alexander_Rice]

Everybody loves a know it all 😂🎉

[@odi3953]

​@@vortexan9804юж эх хотя юж,

[@alancamilleri]

You should of kept the psu wire longer and avoid that crappy joint.

[@ddistrbd1]

This is based on resistance soldering. there are many videos about it but with the use of a modified /rewired transformer(heavy duty transformer such as microwave transformer), the charcoal rod AKA "Gouging carbon rod" can be ordered online, resistance soldering tool has been used by model railway enthusiasts for years.

[@komolkovathana8568]

Spotted Welding, not Soldering ( need filler lead or silver rod.)

[@josephkostinko739]

@@komolkovathana8568 I would like the ground be a battery core too. And then have 2 spark plugs and pinch the metal between. Get some serious spot welds.

[@user-mf5mt8tq5r]

Scam

[@sharthun2009]

What a complete was of time for an impracticable tool.

[@JageeAgain]

but it is practical

[@MrBigShotFancyPants]

​@@JageeAgain But it's not practicable. Dah😅

[@davekirk4217]

Its meant to teach how to make something, not to show you how to save money. Some people like learning thus way.

[@MrBigShotFancyPants]

If you have nothing nice to say...... .....Say nothing at all.😎

[@coreywalendzik]

​@MrBigShotFancyPants If it actually works, it would be a very practical solution for spot welding the nickel strips when building battery packs.

[@RockyMtnRC]

Great idea. Question... why attach two feet of blue and yellow wire when you had 2 feet of wire already there that you cut off?

[@FixItFast1]

Initially I wanted to show it differently, but I decided to show how it would be safer

[@davekirk4217]

Probably cause it's thicker wire. Its gonna get real hot the closer you are to the carbon rod end. He's probably saying safer, cause its less like to burn through and short out with the thicker wires.

[@AusWorkshop]

This guy's a real bright spark.

[@Masonic1016]

I wasted my entire life throwing away used razor blades, when I could have just welded them together. This video has completely changed my life - now I'm going to have all the welded-together razor blades I always dreamed of as a small child. I'm off to the computer shop now, to get the latest Mac Airbook Pro and get chopping away at that power supply. I might even be able to burn some holes in some aluminium foil too! Pure genius.

[@horstszibulski19]

🤣🤣🤣

[@Ali_Haji_SouthAfrica]

Blah blah blah 🫤

[@SteffenBoserup]

If You wonder why your car barely accelerates, then using one of it's spark plugs in the project was a bad idea.... We don't need the power supply! - We can solder a connecter to some banana clips, and use our laboratory power supply, when we want to play tetris/pacman -ROFL- 🤣

[@robertpitt8418]

😂 👍

[@lukask7445]

You could have built enire steel house. Maybe a cargo ship or even a skyscraper.

[@johnholmes6897]

The spark plug has a conductive lead, you pulled it out You could have certainly used the original leaf. Rediculous. You can buy a basic welder that actually welds for $50 and you won't get electrocuted

[@jackriley5974]

Thank God for fast forward!

[@hongmander]

🤣🤣🤣 I just jump six steps but after two jumps, i know what he want to show us.

[@evandrojgc]

Hahahahahahahah!

[@gerritvandeventer4147]

why cut it of short and then join a piece on keep it long and have a decent connection.

[@Shaun.Stephens]

It was because he wasn't using the laptop supply (most won't do that, they have over-current protection). In the burning videos the graphite rod was actually connected to a high-current supply like a car battery. Having 'extension leads' allowed for the illusion.

[@gene1554]

@@Shaun.Stephens NO spark plug required.

[@Chris-ch5nb]

That’s not even the first question I have about the sensibility of this.

[@Tom-vj7oi]

Very useful, next time I need to spot weld razor blades together....

[@davekirk4217]

Its for demonstration purposes. This guy seems like an educator to me.

[@DIYTechTrends]

Your information is very helpful. I will try to do that. Thank you for sharing

[@GuillemSabater]

Interesante video, pero, ¿para que sirve la bujia? ¿solo para aguantar el varilla de carbon de la pila?

[@68pishta68]

wow, blown away on the simplicity of this! I made a spot welder out of a stereo amp torroidal power transformer, 2 relays and a capacitor. 2 copper leads onto part and hit the button, .2 second duty cycle and 2 spot welds. Gonna try yours now.

[@333donutboy]

The best part was when you cut the power supply cord short then added wire back to make it longer. Mark Rober better watch out for you.

[@1ambulator]

Love the little welder. EXCELLENT creative video. You are destined for greatness in KZbin.

[@FixItFast1]

THANK YOU VERY MUCH ! These are the nicest words I've ever read! Hug you

[@coolbreazmike]

I want hug too I like the video

[@TheLowerNard-sc6rq]

Yes. It may not be much, but atleast it's real. I'd like to clobber the free energy guy. "Take 4 crayons and wrap wire around them. The break a lightnulb with a magnet and pour hot wax on it all and PRESTO! You made a worthless pile of garbage." 🤣

[@reevissequeira5929]

tapeing the wires. Remember to put them in opposite direction and tape the final because if it heats due to high dc volt it will melt and short buddy

[@appk5884]

The the spark plug is used here just as a holder. A piece of wood or plastic could do the same thing. 😂

[@Serprou]

Yes! (Brasil SC)

[@davekirk4217]

Wood or plastic would likely burn or melt. Mini-welders get very hot at that end. Ceramic wouldn't burn or melt and is an insulator. It should keep you from getting shocked and prevent you from burning your hand.

[@DIYTechTrends]

Right. It is an insulator. I even made a plastic pen and it was perfect

[@lewis2553]

I wonder if he's ever tried making a "neon" light using a 5 gallon water jug filled with acetylene and oxygen? 😂😂😂

[@mickwolf1077]

I bet someone will try to now 😶

[@charliesgrumma5388]

Thank you John Redcorn!

[@dereksuperstrong1210]

Why didn't you just cut it off closer to the plug and strip the black stuff off the wires and use the wires that were already attached instead of splicing two new wires on it it was the same length as it was in the beginning

[@Xylometazolin.]

What a bullshit. Almost all power supplies of this type have short-circuit protection. Using them in this way will turn off the power supply

[@Shaun.Stephens]

Agreed. That's why he used 'extension wires', so he could connect a car battery for the 'welding' shots.

[@ishtiaqali6955]

no sir you are wrong..not ALL laptop power supply have over current protection..i have a lot of different type of chargers they don't have this protection..some have some not..i have an hp 19.8v 9.5 amp a philips a dell ..they don't turn off when shorted

[@stinkycheese804]

You failed to realize that his rod was a resistive element limiting current. The design was silly but he didn't pull that out of a battery for no reason.

[@lohvinserhii542]

Тут використано графітовий стрижень! Це напівпровідник. Ніякого короткого замикання немає.

[@lohvinserhii542]

Таким чином можна паяти мідні дроти в розподільчих коробках.

[@peacedoor123]

ありがとうございます😊

[@paulerickson1906]

Very interesting, Thank you.

[@SV-13]

Про остальное промолчу, но зачем оставлять короткий хвостик, чтоб потом его наращивать? Бред...

[@sokolovskivitali2971]

попробовал дырки в лезвиях прожигает. бестолковая вещица.

[@viktorviktor3624]

@@sokolovskivitali2971 д.д. а как пробовал ? может нужно сократить время контакта ?

[@sokolovskivitali2971]

@@viktorviktor3624 в БП защита сама сократит. 7 ампер от Acer и штифт от батарейки АА

[@sokolovskivitali2971]

@@viktorviktor3624 в БП защита от КЗ. может важно какой БП.

[@viktorviktor3624]

@@sokolovskivitali2971 ну скорее всего так и есть .

[@gozgone]

Could you use this as a spot welder for lithium batteries?

[@Patient-9]

Looks pretty aggressive and hot for Li batteries. I could see this easily burning a hole in an 18650.

[@stinkycheese804]

@@Patient-9 I was thinking the opposite, too weak to make reliable welds.

[@trokt2]

Are you sure you don't need a soldering iron?

[@funnelfpv9435]

The issue I see is how would you connect the battery plate you need to weld to with the alligator clip? The current seems to need to flow from one plate to the other to weld them.

[@DIYTechTrends]

Surely you can, the method is also simple

[@josejoaomoraesdasilva4985]

Muito top parabéns 👏👏👏👏🙏

[@markcondrey2297]

Future suggestion… learn how to do a western union splice when you join your wires. It keeps the wires inline and is much stronger and conductive than in your video. It is also easier to wrap electrical tape around.

[@skeeterlubidowicz9158]

It’s perfect for when I want to spot weld the business ends of my utility knives together!

[@davekirk4217]

Or you can take the basics he has showed you and step it up. Imagine using a transformer from a microwave. 4 gauge battery cables, and some #4 rebar.

[@lalado6969]

Very nice project 😂thank you😮

[@oldyeller9849]

That's 11 minutes you won't get back.😂

[@sidkhan9871]

If I am not wrong... Is this spot welding?

[@Angtechservice]

Yes

[@javierhernanvelezgomez1950]

Gracias!!!

[@QuangVu-ij4wy]

Ô kê ban đã giúp hiểu them về bộ nguồn laptop cu với cách hướng dẫn của bạn Thật hữu ích.

[@josefreitasoliveira4547]

Excelente

[@Tattysnuc]

so you butcher a perfectly good spark plug to become a handle for your graphite battery core? that's 11 minutes of my life I'm never getting back.

[@AusWorkshop]

This guy's a real bright spark.

[@SSRN_SEAVIEW]

Seems like a lot of time for spot welding razor blades. And the horror of ruining a good spark plug. Doesn't Harbor Freight sell something like that already for $4.95??

[@inkvisio6600]

thx 4 video it`s working indeed, mostly with batteries and supplies which has no overload protection, BUT car spark plug is really necessary it will be no working without it !!! ))

[@personanongrata9289]

For added safety, be sure to stand in water while using this.

[@frankyvee1]

It's only ~20 volts and ~ 4 amps.

[@angelodagnolo984]

As soon as you put items on table I said spot welder!! Nice jobe 👍

[@Bianchi77]

Nice video ,thanks :)

[@willdatsun]

that 2nd tune is nice

[@russbilzing5348]

1) It was unnecessary to shorten the wires. 2) You could have put an alligator clip on both ends and the graphite on one while holding the non sparking end with pliers. OR...3) Attach the wire to the end of a copper cored sparkplug, cut off the ground electrode and used that. Any or all of these would have been more sensible than the needlessly overwrought method you have used here.

[@hongmander]

😅 Just made the vid longer , then may be get more pay.

[@apollo1394]

Car Spark Plug - The electrical energy (voltage) it transmits is extremely high in order to create a spark and to “light the fire” within the controlled chaos of the combustion chamber. Here, the voltage at the spark plug can be anywhere from 20,000 to more than 100,000 voltage.

[@mr.fitter8667]

Super idea 👍💡

[@hashimsalim2665]

good job

[@skipmartin3469]

I always wanted to be able to weld razor blades together.

[@fenixalorca3143]

🤣

[@geraldopontes37]

Excelent! Thanks

[@larrywashburn9435]

Suggest loose the music and save us from watching cutting and splicing wires, just get to the point.

[@InkedCarpenter1776]

lose*

[@viktorskypec3154]

Только увидел заделку скруток задался вопросом,чему этот самоделкин может научить ⁉️

[@alexandrteplov4445]

такие видео не нужно расценивать как конечный продукт, это просто подача идеи. конечно же провода потолще нужно припаять прямо к печатной плате блока.

[@viktorskypec3154]

@@alexandrteplov4445 тем не менее идею нужно подавать в технически верном исполнении

[@sjb3460]

If you take your cable wire stripper and twirl it around the insulated wire, you will have better results.

[@robertverschueren9136]

how ingenius is this 😀

[@carlalepore7012]

Complimenti ottimo progetto, lo costruisco anch'io per provare a saldare le lamine delle batterie ricaricabili e costruirmi un pacco batterie, credo possa funzionare.

[@VahanToroyan-zx4ed]

Thanks ! (Erevan)

[@user-jx9es8lk7p]

you are the best , thanks

[@ogeskarapuz]

Дякую за видео!

[@accessblaster7876]

I bet those fumes from the battery electrode are nasty

[@Shaun.Stephens]

Fake video! He wasn't using the laptop supply (they won't do that, they have over-current protection). In the burning videos the graphite rod was actually connected to a high-current supply like a car battery. Having 'extension leads' allowed for the illusion.

[@ishtiaqali6955]

no sir you are wrong..not ALL laptop power supply have over current protection..i have a lot of different type of chargers they don't have this protection..some have some not..i have an hp 19.8v 9.5 amp a philips a dell ..they don't turn off when shorted

[@stinkycheese804]

The graphite rod is a resistance that if someone is lucky enough, will limit current enough for the PSU protection circuit to not shut off the output. Better technique would be to reserve it for spot welding, put a resistor in series to limit inrush current to a capacitor bank in series, so you simply wait a few seconds to charge up the capacitor bank, then are discharging it to do the spot weld. No spark plug or battery core required, just low gauge wire and durable/replaceable electrode. A very short piece of 12ga solid core wire as a replaceable tip in a screwed-clamp setup would do nicely if it just needs to be cheap and use scraps lying around anyway.

[@jvon3885]

Ok so build one and film it then put out the debunk video. That's what I expect from anyone who challenges these types of videos.

[@Watson1]

I would get rid of the music, too loud and not necessarily.

[@dwh3276]

It’s downright irritating.

[@sedatkayalar2689]

u can close down it

[@user-rt9zq8rs9k]

At least turn it way down

[@johnmahoney2178]

I agree with you on that 🤔😁👍

[@edwardtupper6374]

I found the complex rythms and the playful interaction of melody with harmony to be deeply satisfying and uplifting. Bravo, maestro, bravo.

[@tina5670]

😮 That was awsome!

[@horstszibulski19]

Just add a compressor and an air nozzle and you can arc gauge as well...

[@user-ev5en9vo3x]

Very cool - but when would you use it?

[@farmlandtiger1377]

so the spark plug doesn't have anything to do in this job, right?

[@AmazingSmart-ngth]

His idea is great, I will do it

[@mkdh7364]

thank you so much

[@FixItFast1]

Thank u too 🤗❤️

[@googleYoutibe]

Зачем нужна свеча, если без нее можно.... 😮

[@googleYoutibe]

Трамлеры закончились😂

[@jozefvarga181]

@@googleYoutibe 😂

[@nizarsakr6584]

Great@

[@ernst-jackmickey9890]

Amazing, like a wonder

[@fissehaasfaw2462]

Ok, good but Why You hide wires line after some time . That create suspection.

[@user-eu5vt7bk4v]

kaynağı kısa tutuyor uc kıpkırmızı olunca çekiyorlar.ya evi kendilerini yakacaklar ya sigortayı.

[@user-md7su7rr2t]

very good

[@rilosvideos877]

The title is absolute nonsense! There are lots of uses for old laptop PSU's - you just show one that could be done in 100s different ways and even better. But spot welding with a graphit rod is always a nice usage.

[@vincentleung6167]

Can it weld siver joint?

[@TomHandmadeCreative]

very nice

[@davidcummings5798]

That's awesome

[@Ken-yg8vb]

That is not a power supply. It is a current transformer

[@lukask7445]

IMPORTANT improvement. If oyu have no such spare wires as in 3:03 you can simply use the ones you have just cut.

[@loviestlewis1103]

Next time wrap sand paper around front of drill nozzle and tape it to it excellent for grinding down things fast and on the fly .

[@thanhhoang-iu8gv]

Những dự án của bạn thật là độc đáo , đơn giản tiết kiệm dễ làm và hữu ích /Hoan nghênh bạn và tôi luôn chờ đón những dự án của bạ ! Cảm on bạn

[@jesenmenalis7487]

Trim's....👍👍🙏

[@genecibispo3043]

First Like from Brazil!

[@EdemirMedeiros]

Até que em fim um abençoado achou um projéto para o carregador de leptop, achei que ia ter que jogar os meus no lixo😅😅🖒vlw!

[@evaldomendes74]

Depois de fazer essa gambiarra toda, é bem provável que o carregador só sirva pra ir pro lixo mesmo... 😆

[@lukask7445]

Você tem lâminas de barbear clássicas desnecessárias?

[@arpadsoros6898]

You show very carefully how to peel cable, but you forget to show which most important. Which is positive or negative. It's easy for you but not everyone who knows it .....Thanks.

[@Kueh44]

Interesting. What is the rated output of the power supply that you use? Amperage, voltage, AC or DC?

[@FixItFast1]

I would advise you to watch the preview of this video, everything is clearly written there

[@user-im8yv6ne4f]

hi..good stuff....that will make a few bucks...

[@Diver-gq2qo]

And another thing: when you close the circuit, the PC recharger fedele a short circuit. I suggest to use a low resistor to limit the current. I will try this device to assembly lithiyum battery. TY

[@apollo1394]

A solder cool but how good does it hold?

[@antimatter314]

Whats the weld depth or maximum size plate it will weld?

[@mustaphatiflet8650]

🎉🎉🎉🎉🎉❤❤❤❤🎉🎉🎉 merci avec merci 🎉🎉🎉🎉🎉🎉

[@CreativePassion88]

You are doing well dear friend.

[@SkunkPunch73]

Excellent little bit of information 🫵🏻😘👍🏼

[@Minoteus2]

why use carbon from a battery instead of just any metal conductor?

[@andrerussouw2124]

How about making staggered joint and heat shrink tubing

[@Mitgardxxl]

interesting.

[@shailendrachiplunkar7195]

Nice project Sir

[@connielingus6969]

You sound vaccinated!

[@lmwlmw4468]

Nice.

[@ZommBleed]

I will definitely keep this in mind the next time I have need to spot weld two razor blades together.

[@mugwump-bk7os]

For very wide beards? 😂

[@TanyaHarris-ho8lj]

I'm in need of your prayers and positive energy. Please keep me in your thoughts.

[@chrisvilavelha]

@pkf4124 10 hours ago Its a standard HP laptop supply 19v @ 65 watts, they are all around that no matter the manufacturer.