@@aditparikh781i commented that artard because the other retards “if you look at the comments” don’t know that and are thinking it’s an actual mechanic shop w a customers car. You fking idiot😂🤣🤣
@@benlalime8543 most likely a shop car. When you’re training they have test equipment. Just like any other trade. If I’m in school to be an electrician; they arnt going to make me wire up a house right away. I’ll learn using my school’s equipment.
I have been a mechanic for over 20 years, I can't tell you how many times I hear people call an open circuit a short circuit; they all need to see this... this is called a short circuit!!!
Im 47 years old and have had 2 batteries explode on me in my lifetime. One was frame mounted on a big truck, and the other was under the hood in that exact location. I wasnt doing anything wrong for them to explode. I just happened to be in the wrong place at the wrong time. Having acid blown everywhere and bits of plastic shrapnel isnt fun. I have a healthy respect for batteries. Dont do this little test they're doing folks.
@@nthgth Ive often wondered that myself. Great question. Ive wondered if it was opposite polarity plates getting together inside the battery somehow from bouncing around under the hood for 5 or 6 years or something. Or maybe the hydrogen sulfide gas inside the battery reacted with the spark of the jumper cables. One I was removing from the side of a big truck frame and it exploded after I removed the cables and unbolted the bolt down. I simply was sliding it out of its cradle on the truck frame and it exploded. The other was under the hood of my truck and I popped the hood and in the process of putting jumper cables on it the damned thing exploded. Caught me off guard and scared the hell out of me. I definitely was hooking the cables up correctly. So I was thinking maybe the hydrogen sulfide ignited from the spark of the cables picking up load. Both batteries were the old style that you have to pop the caps off the top and check the acid levels. They were not the newer sealed batteries. Anyway, I definitely wear safety glasses nowadays when messing with batteries.
@@zacksrandomprojects9698 ah I see. That would scare the crap outta me too. I guess yeah, maybe the gas escaping through the caps. I _hope_ the newer sealed ones avert this risk. Was it terrible, with acid all over the place? And your face and hands?
@@nthgth Yeah for the most part the battery shells stayed intact. The caps blew off and broke a few little pieces of plastic off the shell. Acid everywhere. Didnt get in my eyes. Got on my hands and clothes. It didnt burn me. I washed off in the hose right away and gave the engine bay and inner fenderwells a washing. I wonder if the battery shell couldve gotten weak from being heated up and cooled down for years under the hood? I just thought of that. As far as the one on the truck frame, it was exposed to the elements all the time. It just had a little cradle it slipped into wish a strap that went over it to keep it in the slip. It was an old U-Haul truck with the battery mounted on the drivers side frame rail about 3 feet in front of the drivers side rear wheels.
@@hs_doubbing Sulphuric acid vapors are highly explosive! Nothing to do with overheating battery. Ive had 2 batteries explode on me and the batteries were def NOT overheated. Any spark can set them off if those vapors are present. I will say that the no maintenance batteries are better now as far as vapors.
the idiot is the one with false confidence that doesn't even know what fucking Ohms and resistance means. Just an idiot that thinks a little wire can carry as much current as a wrench.
@@cdavidlake2You just learned that word Huh couldnt WAIT to use it next huh 😂😂😂😂🤦🏽♂️💯💯 That was So Lame Bra Just chill alright bro its all good man 💯🤙🏽🤠
they can emit hydrogen gas through the vents, which will explode if an ignition source is nearby. It's why when you connect the negative cable to the dead car (in jumpstarting) you're supposed to use a bare piece of metal inside the engine bay instead of clamping it directly to the negative post.
Wedding rings of any kind can get caught in stuff and rip off chunks of your finger skin. Get a tattoo unless you're hoping to take it off for "fun" and future disappointment.
Fuses don't protect electronics. Fuses protect the circuit wiring. No different than an electrical surge can destroy household electronics which are protected by circuit breakers or fuses.@@zwenkwiel816
Electrician here, when you short out a power source like this the rest of the circuit only sees a drop in voltage, not a spike. So it won't likely harm the rest of the circuit(s) connected to the battery.
@@user-ks6ni3jf3l the wire coil becomes an electromagnet when the (short) circuit is made. Magnetism induces magnetism on other compatible material in range - in this case, the screwdriver. Try it with a strong fridge magnet. The screwdriver won't become as strongly magnetic as the magnet you use to induce it, but it might show some attraction to a paperclip or a tiny screw. The effect is temporary though. (Your original magnet will be unaffected)
That happened inside my car, late one night travelling along on a country lane. The cabin filled with smoke, my head lights went out and the car shut off⚠️😲😳 A live cable that had been inadvertently crimped between the steering column and a fixing bracket to the car body, causing a break in the insulation! Nice firework and smoke show! Thankfully the wire acted like a fuse and blew a none critical circuit, after turning off the car and on, I was back on my way, albeit slightly shaken! 😊
My automotive instructor had a tatoo of a metal watch strap on his wrist. He was trying to save a few minutes and change out a starter without disconnecting the battery. You could read Speidel on his skin. Good lesson, I've never forgotten that after almost 50 years.
On a 12v system? 🤔... he would have to directly connect the + and - to his watch and hold it there for some time before it could permanently burn into his skin. 12v DC and 110v AC are completely different animals in the way they deliver power. Its hard to imagine 12v DC doing this damage in the way he said it did. I could totally be really retarded though and be wrong, so lets not count that out 😝.
My buddy was changing an alternator on his friends car, and the battery was in a place with no access. He decided he would not disconnect the ground, and would "just be real careful." Of course while undoing the hot terminal, he arcs it to the worst possible place. The fuel rail. It burned a hole releasing pressurized fuel which quickly became fire, as fuel often does. He tried blowing it out like a fukn candle but it kept going lol. He was lucky to only have to buy his friend a fuel rail, because it easily could have destroyed the whole car.
@@toddmccardle5125 Actually, he is one of the best techs I know. 😂 This was back in his rookie days. We all make mistakes. The real test is if we learn from them. Needless to say, he did not make that mistake again.
Lmao happened to me in my 65chevy had a hardwire from the battery straight to the ignition lmao burned from theback of thedash all the way to the battery 😂
I had to hotwire my car because I broke my steering lock for some reason. It lit up like this in my lap when I was driving down the road. 😅 had to pull over and kick the wiring apart befor it burned my entire car out.
Imagine going to pick up your car a little early and seeing a group of mechanics standing around holding pliers to your battery with an arc and smoke everywhere
In 1991 when I picked up my 1969 Oldsmobile Toronado from the seller in Beverly Hills, I inadvertently left the 1/2" wrench between the battery posts. It got so hot and red. I remember having my gloves on and quickly removing the tool. To this day I treasure this blackened wrench.
yeah we use car batteries for electric fencing for sheep, one of my co-workers picked up the box with battery and everything in it and moved it. when he went to connect the battery there was a spark that ignited the gasses built up inside the box and the top of the battery exploded. (normally when we move it we move the box and the battery separately)
Remind me of when my teacher was telling the class about testing resistance and some of them were not quit understanding How a wire for say, a starter's wire, can show ~0 Ohms but be defective. I showed them what happen if you attach a wire 0.2mm to the main circuit. They saw this wire was 0 Ohms when testing. I turned on the ignition, saw all the motorcycle's modules were turning on just fine but when i would turn the key to crank it would only activate the starter selenoïd and that small wire would start to glow red hot in seconds. From that point they understood what a big wire breaking apart can look like on the multimeter. A wire or it's loose connection showing near ~0 Ohms can still be the fault in the circuit. Best way to verify is to bypass it to see if the problem persist
Exactly what I came to say. You see a car battery explode once and what happens to anyone the hot acid lands on you'll never smoke or do anything of the sort while charging a car battery.
@@Join0rDIE1776 don't you have better things to be doing with your time? Like fighting a corrupt and tyrannical corporate government system? And restoring our constitutional republic? By knowing your rights and defending them?
@@DangerousFreedom88 don't you have better things to be doing with your time? Like fighting a corrupt and tyrannical corporate government system? And restoring our constitutional republic? By knowing your rights and defending them? Also, your biological predecessor of the fairer sex
My dad always told me from since I was a kid to never rest no tools on the battery. I only understood years later working with my friend on his mustang. Glowing wrench🤤
If you use short wrenches or short ratchets that can't bridge the space between the two battery posts it can never happen. Stop using long ass wrenches or long ass ratchets that can bridge the gap. No more worries about accidental slippage and accidental contact ever again.
Thank you for the the Upgrade help, fusion should start here ! Now I see what I wasn't even considering the whole time! Thank y'all love you all for this! 🙏🙏🙏
@whatthefuk4 Fuckin' A! Depending on how close you are to it, it might be the last thing you ever see! Some people think it is a myth or a joke. Not Funny! I have seen one from 30 feet away! That was enough for me!
@hugomartel6651 When I load-test a battery, I use a tester with leads so that I'm not on top of the battery. Usually when a battery explodes, it just blows the plastic plug off of one cell. Not deadly, but you could be blinded. Sounds like a rifle firing.
Actually they aren't at all rare. You can still get new old stock and meggaflash is still making them for theater and video production uses. You can get huge ass Edison base types for about 20$ a pop and they are used in theater and stage for live shows where flashpots are not allowed or unsafe. Is there a particular type you're looking for?
@kg4boj yeah. That's kinda where I work. There are places that sell them but it's all former overstock. I can't always get them when I need them so I bundle fine magnesium wire.
nah not really, truck is fine even it were on ,would have been a problem if that was a very thick wire battery could overheat and maybe rupture , but electronics would still be fine
@@draileduncommon I don't think the inline fuse has anything to do with it, the inline fuse is used to protect the electronics incase of some overcurrent draw from all the electronics circuits, if your drawing current on only that piece of thin wire, its the only thing that will get damaged
During my apprenticeship to become a Journeyman automotive technician we were doing short circuit diag, one of the instructors was telling us a story about one of his journeyman who was one of them old boys. He said the easiest way to locate a short in a harness instead of cutting the harness open and spending hours trying to find the short they’d pull the fuse out of the fuse panel install a paper clip and have another guy watch for the smoke to start and stop lol they then would open harness check for collateral damage and proceed to do an overlay lol . It’s amazing how quickly an improperly sized conductor lights up and melts when there’s a piss load of amps flying through it
@@jasperriley3923 haha ya I’d definitely not do it that way lol . Crazy what some of the old timers would do. Much easier to hook a headlight bulb in place of the fuse and start dividing the circuit up until the bulb goes out lol but to each their own
Yeah, when a wire lights up in a wiring harness you now have major problems. The wire is like a hot knife in butter shorting and feeding power into things that power doesn't belong. The wiring harness is usually toast and most times is unavailable as a service part. So you got to make your own or get a section from a junkyard. Splicing in a wiring harness can be a nightmare because if you use solderless connectors you'll end up with a football-sized lump in the harness from all the splicing. Offsetting the connections helps. I solder and heat shrink the connections if need be.
@@ElectricBillAlbright yea it’s definitely not a great idea period. It’s obviously not something anyone should do with vehicles now a days. If a wire in a harness has a short you’re already going to have quite the repair regardless cause you dang well know that it’s not the only wire compromised. As for the repair you’re definitely going to have to do a solder repair to mitigate making the harness massive. Doing lots of swaps nowadays I’ve had my fair share of harness splicing jobs. It’s not fun
I was a lab technician working for a well know generator set manufacturer. I was assembling a prototype gen set and as I tightened the negative terminal on the battery I was momentarily distracted and the handle of my ratchet wrench hit the positive terminal of the battery. In a flash the ratchet turned red with heat with my hand stuck between the battery and the 1200 degree ratchet. The battery exploded but it saved me from losing my fingers. I now have great respect for the potential energy stored in a battery.
My hobby is car audio, so naturally I end up with scrap circuit boards and batteries and components. Few years ago I would screw around in the garage after work every day, and did a ton of melting wires, blowing up caps, shorting PCBs in unique ways. Just to see what happened. I feel like that was good hands-on experience to truly understand the concepts I had already learned through reading or mentorship. I remember powering up an amplifier board and just dragging several wild strands of wire across it and watching things pop. Or similarly shorting things out and holding them until they melted everything. I was careful not to breath the smoke so much, but I probably lost some brain cells still.
Not disconnecting the negative first, and reconnecting last, is a safety protocol, I will never forget. A science teacher touching the wrench to the frame, as he was disconnecting the positive. He was directly over it, when the lid blew off and broke his nose, covering him in H2SO4. As I turn on the hose, he kept asking what happened. Imagine explaining the science to a science teacher.
@@Tsimi1234Remember ELLE - Earth Live, Live Earth Earth then live to take off, live then earth to put back on. Earth sometimes sparks (if there’s a little of a drain somewhere or improper earth straps are used) but that’s protocol. Don’t end up with acid burns to your face.
😂😂😂 when I was in automotive school the guy teaching electrical was talking about short circuits and opens on day 1. Got a battery on the bench and wire harness with a couple components for loads. He asks us what would happen if there was a dead short. The other instructor, who was teaching the second class and just happened to be walking by goes: "what? You mean like this?" As he slams big wrench across the battery posts! 😂
the wire cant handle enough current for anything to happen to the battery, now if you try this with a 8 or 10 gauge wire... yea you might detonate the battery.
@@jackasshomey Just charge the battery for an hour and flick a Bic real close to the battery to see what the problem really will be! The wire isn't the problem. You ever see the Hindenburg? Know how fire crackers go bang? Ever seen a lady finger firecracker? it is the tiniest of all firecrackers. 1/8" in diameter and maybe 1/2' long. You will only want one to go off in your fingers. Now look at the size of that battery! How big a bang you think that thing will make?
@@mikerogers7502 A battery will only EXPLODE if you create a spark near it after it has been charging. Pretty much any time after the car has been running. When batteries charge they put off Hydrogen gas! Think of an EXPLODING Hindenburg! Not just one that caught fire!
@@tbusch63 its a matter of mathematics... the battery physically isn't able to explode because the wire broke... its literally the principle behind how fuses operate... and the hindenburg caught fire cause it was made of flammable material cotton... and you'll notice it burned and didn't detonate because it was pure hydrogen gas not hydrolox...
Btw when you do this make sure all your electronics are hooked up and make sure all the fuses are replaced with wire that can handle a lightning strike. If everything is done correctly you should now have a vehicle that doesn’t work 😂
My brother accidentally did that and a shard of the wrench went into his thumb and he couldnt get it out smh shits dangerous , then my boss said one time he was younger and did the same thing and the battery expolded and burned his shirt off so yeah its not something to play around with
@@diamondboy3456i did it with a ratchet 17 years ago back in highscool autotech. I still have the same car. Might have to sell it now. Left leg was amputated last December.
@@zbychu22169normal batteries yes car batteries literally have to be rated to withstand crashes otherwise cars would just explode all the time I've exploded plenty of AA batteries and it's really easy because it's just a metal foil keeping everything together and in place with a car battery the case surrounding it usually won't let it get that damaged from most normal accidents I wouldn't trust a 1000lb lithium battery that's literally the same length and width as the car those seem dangerous and if it explodes there's nothing you can do everyone within 100 feet is immediately dead and probably gonna cause injuries and damage a long while further than that but also idk I'm a 20 year with a GED so yall do what you will😂
That's why you always disconnect the neg terminal especially when working on 24 volt systems that can melt a wrench in your hands . Always observe safety steps
Idk, one time I shorted battery with 13mm wrench on less than 1 sec and shit heated up so much you couldn't hold it in hand. That was on 24v system, bus mercedes benz citaro. Don't believe hvac can heat it up like that but 2 bus batteries conected in series are real double trouble
When I was a kid I had an old pickup with a side terminal battery. I had tools crammed everywhere on this thing and I’d put the lug nut wrench in the wheel well under the battery. Yep, one day off-roading I bounced the wrench up enough to bridge the terminals and the lead melted the wrench onto the battery. Big smoke from under the hood. Pop started it and drove it home. Old vehicles were kinda incredible that way.
@@DannyPlays96 To be fair a car battery can dump hundred of amps across a decent conductor, so It'll heat up a wrench quite quickly, but not so quickly that'll it'll melt your hand given that you'll probably pretty much instantly break the circuit once the literal sparks fly.
Went to a vocational high school. A kid that was in the automotive shop shorted out a battery by accident. It blew up in his face and it shattered his eye socket, blinded him in one eye and left him with a six inch gash/scar for the rest of his life. And these simpletons are doing it for fun… smdh
I caught my socket on the fender of my Buick while putting in the pos side of the side post battery and it welded to the car and quick. Knocked the ground wire off and quick bc it was about to get funky, lesson learned.
Your an idiot you never lay your tools on a battery even if it's disconnected. The same shit can happen if the positive and negative touch with out it being connected to the truck cause the battery still has power
Jumpstarting works better too when you connect your red cable to the positive of your battery and the opposite end of the red cable to the other cars negative then the black to the remaining connections. Then grab the red cable while attached still and hold a wrench in the sky for 3 seconds. It’ll start right up everytime.
This is why you always have a fuse or 12v breaker on positive wires going from battery to extra accessories & lights you may install. If the insulation wears off a wire or it gets pinched/pulled and contacts metal then you will burn wires in two and may start a fire in your vehicle. 😮
Your instructor forgot the mention? By doing that experiment that you popped every fuse and wire hardness in that vehicle. Congratulations, you just totaled a vehicle in 3 seconds without even driving it. 😂
A nice voltage-resistance-current formula works better than any demonstration. You can simply forget what you've seen on YT or not intuitively undestand what was going on. Formulas and theoretical understanding is what actually makes you safe from errors. Cos it you simply know that voltage applied to low resistance (don't necessarilly have to be a short direct wire) means lots of current, and that high current means lots of heat, you would never do anything crazy.
It looks like they’re in school to become mechanics.🥱 that looks like a professor giving them a safety course.
No shit Sherlock
@@aditparikh781i commented that artard because the other retards “if you look at the comments” don’t know that and are thinking it’s an actual mechanic shop w a customers car. You fking idiot😂🤣🤣
That’s a terrible safety course lmao
An I wonder who's vehicle it was tested on 😂😂
@@benlalime8543 most likely a shop car. When you’re training they have test equipment. Just like any other trade. If I’m in school to be an electrician; they arnt going to make me wire up a house right away. I’ll learn using my school’s equipment.
“Am I gonna die?” “No you’re not gonna die” *gets lung cancer*
😂
😭😭😭 lmao
Haha not a good instructor 😢
Got the lung cancer and then died on the car accident while going to hospital
Am I going to die? Listen buddy everybody dies!
Customer states: battery no longer charges after bringing in truck for an oil change. 😂
Lmfao! It's probably true!
🤣🤣🤣 legit
Bruh!!!
Custer states the ECU smells like french fries
Lmfao bro. Perfect
Electrical rule #1: Every wire is a fusible link given enough current.
Rule #2: Every person is a fusible link given enough voltage
Rule #3: Rubber can be electrified if it identifies as metal
Damn I was going to say this
@@gokuthatmadethebeat Rule 4: Rubber WILL identify as metal if given enough voltage
Rule 5: Any electrical component can emit light at least once.
Edit: at least once, not just once
I have been a mechanic for over 20 years, I can't tell you how many times I hear people call an open circuit a short circuit; they all need to see this... this is called a short circuit!!!
No, this is a closed circuit.
@@SlickArmorAll short circuits are closed circuits, not all closed circuits are short circuits.
@@Wellimanewguy I'll buy that.
Yep, from negative post to positive post is the shortest circuit you can make.
In the very beginning it was a short circuit but after maybe 2 seconds it was an open circuit
My teacher gave us a "safety" course on batteries off gassing in my mechanics course. Exploded right in his face. Great demonstration
😂
Lmfao
Everyone learned a lesson that day.
My dad was teaching NOT to do this with the oil stick and slipped off his hand touch both + and - and the battery blew on our face! 😅
@@yayofalcom Did he get much battery acid on him or in the face and eyes?
Im 47 years old and have had 2 batteries explode on me in my lifetime. One was frame mounted on a big truck, and the other was under the hood in that exact location. I wasnt doing anything wrong for them to explode. I just happened to be in the wrong place at the wrong time. Having acid blown everywhere and bits of plastic shrapnel isnt fun. I have a healthy respect for batteries. Dont do this little test they're doing folks.
What makes a battery explode when you aren't doing anything wrong? They can just spontaneously blow up?
@@nthgth Ive often wondered that myself. Great question. Ive wondered if it was opposite polarity plates getting together inside the battery somehow from bouncing around under the hood for 5 or 6 years or something. Or maybe the hydrogen sulfide gas inside the battery reacted with the spark of the jumper cables. One I was removing from the side of a big truck frame and it exploded after I removed the cables and unbolted the bolt down. I simply was sliding it out of its cradle on the truck frame and it exploded. The other was under the hood of my truck and I popped the hood and in the process of putting jumper cables on it the damned thing exploded. Caught me off guard and scared the hell out of me. I definitely was hooking the cables up correctly. So I was thinking maybe the hydrogen sulfide ignited from the spark of the cables picking up load. Both batteries were the old style that you have to pop the caps off the top and check the acid levels. They were not the newer sealed batteries. Anyway, I definitely wear safety glasses nowadays when messing with batteries.
@@zacksrandomprojects9698 ah I see. That would scare the crap outta me too. I guess yeah, maybe the gas escaping through the caps. I _hope_ the newer sealed ones avert this risk.
Was it terrible, with acid all over the place? And your face and hands?
@@nthgth Yeah for the most part the battery shells stayed intact. The caps blew off and broke a few little pieces of plastic off the shell. Acid everywhere. Didnt get in my eyes. Got on my hands and clothes. It didnt burn me. I washed off in the hose right away and gave the engine bay and inner fenderwells a washing. I wonder if the battery shell couldve gotten weak from being heated up and cooled down for years under the hood? I just thought of that. As far as the one on the truck frame, it was exposed to the elements all the time. It just had a little cradle it slipped into wish a strap that went over it to keep it in the slip. It was an old U-Haul truck with the battery mounted on the drivers side frame rail about 3 feet in front of the drivers side rear wheels.
Is this how the ignite sound was made in minecraft? 💀
Yeah I think so xD
I THOUGHT THE SAME THONG 😂
Bro it's so identical
The same thong? @@isaac2fly4you
CREEPER.... AW MAN
As if that 6.0 didn't have enough problems 😅
Is this actually a 6.0?
@@superstar64 yep. and the pcm is right under his arm. No way would I do that to mine truck.
@@jtnoodle
That explains why it was in the shop then.
😂
🤣🤣🤣 6.Blow
Technically speaking... you just demonstrated what a fusible link does
or what it doesn't do, when its not used.
@@bryana7163a fuseable like is the fuse that’s why the name has the word fuse.
Your right !
My thoughts exactly
👀
If you’ve ever had a battery blow up on you, you will know you are watching idiots at work……that is all
The resistance on a wire that tiny is way too high to overheat a battery. What you saw there was the wire itself burning to nothing.
@@hs_doubbing Sulphuric acid vapors are highly explosive! Nothing to do with overheating battery. Ive had 2 batteries explode on me and the batteries were def NOT overheated. Any spark can set them off if those vapors are present. I will say that the no maintenance batteries are better now as far as vapors.
Never had it but still watching idiots at work 😂
the idiot is the one with false confidence that doesn't even know what fucking Ohms and resistance means. Just an idiot that thinks a little wire can carry as much current as a wrench.
@@WhodatnTx Aren't the batteries sealed though? How would sulfuric acid vapors be present?
And would you be able to smell it if they were?
My 12” 3/8 drive extension approves this message.
If you're going to do something stupid, then be smart about it🤣
Right! Extensions don’t break like a wire, they just glow red.
The battery is definitely the best place to hold your tools though, bonus that if you need to light a ciggy you can just spark it real quick
All fun and games until the battery outgasses with an open flame and explodes.
Well i think the cable is too thin for that. But nice joke :D
That's correct with a larger cable or a steel rod it could be very dangerous
@@2Jeezuzisreal yes
😂 exactly what I was thinking 🤔
wires too thin for that
Remember guys ALWAYS DEEPLY INHALE while doing this😁
Really? Sounds counterintuitive.
@@cdavidlake2if you are looking to breathe in the ignited chemicals
@@cdavidlake2it guarantees a faster retirement 👍😀
Ah yes, burnt rubber, and metal fumes to coat the lungs for pollen resistant
@@cdavidlake2You just learned that word Huh couldnt WAIT to use it next huh 😂😂😂😂🤦🏽♂️💯💯 That was So Lame Bra Just chill alright bro its all good man 💯🤙🏽🤠
As a teenager, I had a job at Kmart automotive service department and was trained that batteries were very dangerous for explosive reasons
they can emit hydrogen gas through the vents, which will explode if an ignition source is nearby. It's why when you connect the negative cable to the dead car (in jumpstarting) you're supposed to use a bare piece of metal inside the engine bay instead of clamping it directly to the negative post.
This is exactly how you weld your wedding ring to a 1/2" wrench while its still on your finger.
Get a rubber or silicone wedding ring then you won't have to worry about that.
That sounds very specific…
@@MaxPower-ke5rqlook up degloving. most smart mechanics will take off their rings for fear of it.
Wedding rings of any kind can get caught in stuff and rip off chunks of your finger skin. Get a tattoo unless you're hoping to take it off for "fun" and future disappointment.
Only customer vehicles were harmed during the production of this film.
😂😂😂😂
Judging by the fact that everyone is wearing safety glasses, i think this is at a school
HA HA HA😂
Schools get donations from local dealerships most of the time
One of those pliers probably didn't fare too well either.
I like how they shorted a battery that was fully connected in the vehicle.
they had to justify selling them a new ECU
yeah I was wondering what that would do to the electronics but I guess there's fuses protecting them
@zwenkwiel816 I don't know if it would or wouldn't do anything actually but it's definitely not wise.
Fuses don't protect electronics. Fuses protect the circuit wiring. No different than an electrical surge can destroy household electronics which are protected by circuit breakers or fuses.@@zwenkwiel816
Electrician here, when you short out a power source like this the rest of the circuit only sees a drop in voltage, not a spike. So it won't likely harm the rest of the circuit(s) connected to the battery.
Neat trick I learned last month. Wrap that wire around a screwdriver and do that real quickly. The screwdriver is now magnetic for a bit
Ya, but even coiled up that wire gets hot very fast. But it does a great job magnetizing it screwdriver. Now they have tools that do that.
?
@@user-ks6ni3jf3l the wire coil becomes an electromagnet when the (short) circuit is made. Magnetism induces magnetism on other compatible material in range - in this case, the screwdriver.
Try it with a strong fridge magnet. The screwdriver won't become as strongly magnetic as the magnet you use to induce it, but it might show some attraction to a paperclip or a tiny screw. The effect is temporary though.
(Your original magnet will be unaffected)
That happened inside my car, late one night travelling along on a country lane.
The cabin filled with smoke, my head lights went out and the car shut off⚠️😲😳
A live cable that had been inadvertently crimped between the steering column and a fixing bracket to the car body, causing a break in the insulation!
Nice firework and smoke show!
Thankfully the wire acted like a fuse and blew a none critical circuit, after turning off the car and on, I was back on my way, albeit slightly shaken! 😊
My automotive instructor had a tatoo of a metal watch strap on his wrist. He was trying to save a few minutes and change out a starter without disconnecting the battery. You could read Speidel on his skin.
Good lesson, I've never forgotten that after almost 50 years.
That would of been something to see
Metal watch straps and rings. 2 things smart mechanics won't wear.
On a 12v system? 🤔... he would have to directly connect the + and - to his watch and hold it there for some time before it could permanently burn into his skin. 12v DC and 110v AC are completely different animals in the way they deliver power. Its hard to imagine 12v DC doing this damage in the way he said it did. I could totally be really retarded though and be wrong, so lets not count that out 😝.
A lesson in arc flash and welding all in one.
@@avid6186just about anybody that sticks there hand in small places or deals with electricity.
My buddy was changing an alternator on his friends car, and the battery was in a place with no access. He decided he would not disconnect the ground, and would "just be real careful." Of course while undoing the hot terminal, he arcs it to the worst possible place. The fuel rail. It burned a hole releasing pressurized fuel which quickly became fire, as fuel often does. He tried blowing it out like a fukn candle but it kept going lol. He was lucky to only have to buy his friend a fuel rail, because it easily could have destroyed the whole car.
😮😮😮
Sounds like your buddy needs to leave it to the pros lol or learn on his on stuff not someone else's lol
@@toddmccardle5125 Actually, he is one of the best techs I know. 😂 This was back in his rookie days. We all make mistakes. The real test is if we learn from them. Needless to say, he did not make that mistake again.
@@toddmccardle5125Learning is learning, if everyone gave up after fucking up once, no one would do anything.
I’m sure he’s reminded often 😅 especially if he ever needed a UA-cam guide. “You removing a control arm? Step 1: disconnect battery” 😂
Went to that school and knows the professor, he's super knowledgeable
It is great to teach the power of a 12v battery as well as how wires become fuses with enough amperage. They learned a lot the day.
When you see your DIY wiring do this, inside a vehicle, you get real serious about fuses afterwards.
Yep had that happen with a temp circuit. Sucks.
Lmao happened to me in my 65chevy had a hardwire from the battery straight to the ignition lmao burned from theback of thedash all the way to the battery 😂
I had to hotwire my car because I broke my steering lock for some reason. It lit up like this in my lap when I was driving down the road. 😅
had to pull over and kick the wiring apart befor it burned my entire car out.
It's always a great idea to have spark or flame near a battery 😂
exactly as a welder i have had a few battery explosion
Hydrogen is a urban legend
its and AGM battery... its sealed.
@@jstefa2 Even sealed they can leak
@@frankenstone804 not likely. that's their whole shtick
Great visual way to warn these kids against crossing the poles!
Imagine going to pick up your car a little early and seeing a group of mechanics standing around holding pliers to your battery with an arc and smoke everywhere
In 1991 when I picked up my 1969 Oldsmobile Toronado from the seller in Beverly Hills, I inadvertently left the 1/2" wrench between the battery posts. It got so hot and red. I remember having my gloves on and quickly removing the tool. To this day I treasure this blackened wrench.
I did the same on my ranger, damn shock sent me jumping and both ends of my ratchet had a little melt
Haha yeah one time a ratchet input on the battery touched the terminals and wielded a bit. It was crazzy
Better times. Sometimes i wish we could go back.
lucky you could remove it, ive had wrenches weld themselves to posts
Have you ever tried having Blackened Ranch as a side with the Blackened Wrench? you got there? On lets say a Friday night?
DO NOT DO THIS. Batteries may vent flammable gasses.
The plastic of the wire is causing the smoke. No battery ever would vent by doing this. Why are always the dumbest people speaking the loudest?? 🙄
DO NOT DO THIS. Don't inhale flammable gasses.
DO THIS just toss the batteries into the ocean and lakes @@sixpest
Can u don't
yeah we use car batteries for electric fencing for sheep, one of my co-workers picked up the box with battery and everything in it and moved it. when he went to connect the battery there was a spark that ignited the gasses built up inside the box and the top of the battery exploded. (normally when we move it we move the box and the battery separately)
Remind me of when my teacher was telling the class about testing resistance and some of them were not quit understanding How a wire for say, a starter's wire, can show ~0 Ohms but be defective. I showed them what happen if you attach a wire 0.2mm to the main circuit. They saw this wire was 0 Ohms when testing. I turned on the ignition, saw all the motorcycle's modules were turning on just fine but when i would turn the key to crank it would only activate the starter selenoïd and that small wire would start to glow red hot in seconds. From that point they understood what a big wire breaking apart can look like on the multimeter.
A wire or it's loose connection showing near ~0 Ohms can still be the fault in the circuit. Best way to verify is to bypass it to see if the problem persist
The customer is just like. What the hell is taking them so long?😂😂😂
We're busy breaking your shit for an extra cost and replacement fee. You know a scam that's what we do best. 🙂
I used to work at a scrap yard and that would get ya fired. No smoking! All it takes is a spark in the right spot.
YA FIRED
Wha? That don't make no sense, angle grinders be on the scrapyard throwing sparks literally everywhere
@@NicoBiturboikr, poster is slow
What?
Exactly what I came to say. You see a car battery explode once and what happens to anyone the hot acid lands on you'll never smoke or do anything of the sort while charging a car battery.
My automotive instructor always used to get asked this and he would say the same thing every time. “It’ll fuck shit up”
Cool story
@@Join0rDIE1776 don't you have better things to be doing with your time? Like fighting a corrupt and tyrannical corporate government system? And restoring our constitutional republic? By knowing your rights and defending them?
@@DangerousFreedom88 don't you have better things to be doing with your time? Like fighting a corrupt and tyrannical corporate government system? And restoring our constitutional republic? By knowing your rights and defending them?
Also, your biological predecessor of the fairer sex
He was my favorite Ranken Instructor very knowledgeable
"Youre not gonna die, just breathe in really heavy when you see the smoke"
That vaporized copper is massively toxic
The plastic is toxic not the copper so much.
@@josephfrank1472bro that copper oxide is insanely toxic do some research
@@josephfrank1472you may want to research that more.
Imagine the tutor demonstrated this every term he would breathe a portion of them eachtimes
Vaporized Copper? So you think it hit 2600 degrees and just stayed there? 😂
Sometimes I forget that not everyone has accidentally welded with a wrench.
ya , the slackers..
My dad always told me from since I was a kid to never rest no tools on the battery. I only understood years later working with my friend on his mustang. Glowing wrench🤤
Or a ring on your damn finger ! Guilty of that. Hahah
If you use short wrenches or short ratchets that can't bridge the space between the two battery posts it can never happen. Stop using long ass wrenches or long ass ratchets that can bridge the gap. No more worries about accidental slippage and accidental contact ever again.
@@youaregoingtolovethisstill have to worry about hitting the + and part of the car
Thank you for the the Upgrade help, fusion should start here ! Now I see what I wasn't even considering the whole time! Thank y'all love you all for this! 🙏🙏🙏
as an electrical engineer, you guys are awesome. 3 stooges awesome
Lmao had me in the first half
These guys never saw a battery explode. They will.
I was thinking the same thing. I would never recommend this
@whatthefuk4 Fuckin' A! Depending on how close you are to it, it might be the last thing you ever see! Some people think it is a myth or a joke. Not Funny! I have seen one from 30 feet away! That was enough for me!
lol its a 60amps load when you crank your car its about 5-700Amps of load, it smoke and glow, but its just a 16ga wire
Not with that small gauge wire.
@hugomartel6651 When I load-test a battery, I use a tester with leads so that I'm not on top of the battery. Usually when a battery explodes, it just blows the plastic plug off of one cell. Not deadly, but you could be blinded. Sounds like a rifle firing.
Alternate title: How to get lung cancer.
How to fry computers
Alternate title: Why is my battery going dead since visiting the tech???😂😂😂😂😂😂
Those safetey glasses melted into your face are going to be annoying for the drs to scrape out
That is the most stupid lesson in an automotive school.
Breathing in smoke ONE time isn't going to give you lung cancer... 🤦♂️
Now that's a real teacher that shows and then explains why 👌 😊
Nothing better than an explanation and hands on visual aid for clarity and experience.
Good idea use a 6.0 PowerStroke for destructive testing. It was probably already never going to run again anyway.
6.0 owners will always catch a stray bullet 😢
It sounds like the fuse when you light TNT in Minecraft
Good instructor 👏👏
I've had to resort to fine magnesium wire. They don't sell flashbulbs anymore.
Actually they aren't at all rare. You can still get new old stock and meggaflash is still making them for theater and video production uses. You can get huge ass Edison base types for about 20$ a pop and they are used in theater and stage for live shows where flashpots are not allowed or unsafe. Is there a particular type you're looking for?
@kg4boj yeah. That's kinda where I work. There are places that sell them but it's all former overstock. I can't always get them when I need them so I bundle fine magnesium wire.
@@codyreber8370 you work for meggaflash?
That's crazy they're doing it with the truck hooked up to the battery
My thoughts also but at least it will answer the what would happen if------?
nah not really, truck is fine even it were on ,would have been a problem if that was a very thick wire battery could overheat and maybe rupture , but electronics would still be fine
@@alberta3157 I think u are correct because there should be a inline fuse
@@draileduncommon I don't think the inline fuse has anything to do with it, the inline fuse is used to protect the electronics incase of some overcurrent draw from all the electronics circuits, if your drawing current on only that piece of thin wire, its the only thing that will get damaged
@@alberta3157agreed
“Keep away from sparks or flames!” 😂
During my apprenticeship to become a Journeyman automotive technician we were doing short circuit diag, one of the instructors was telling us a story about one of his journeyman who was one of them old boys. He said the easiest way to locate a short in a harness instead of cutting the harness open and spending hours trying to find the short they’d pull the fuse out of the fuse panel install a paper clip and have another guy watch for the smoke to start and stop lol they then would open harness check for collateral damage and proceed to do an overlay lol .
It’s amazing how quickly an improperly sized conductor lights up and melts when there’s a piss load of amps flying through it
It works but creates more work.👍
@@jasperriley3923 haha ya I’d definitely not do it that way lol . Crazy what some of the old timers would do. Much easier to hook a headlight bulb in place of the fuse and start dividing the circuit up until the bulb goes out lol but to each their own
I have a Honda turn signal buzzer with 2" pieces of with alligator clip soldered to it that takes the worry out as you don't have to watch the light.
Yeah, when a wire lights up in a wiring harness you now have major problems. The wire is like a hot knife in butter shorting and feeding power into things that power doesn't belong. The wiring harness is usually toast and most times is unavailable as a service part. So you got to make your own or get a section from a junkyard. Splicing in a wiring harness can be a nightmare because if you use solderless connectors you'll end up with a football-sized lump in the harness from all the splicing. Offsetting the connections helps. I solder and heat shrink the connections if need be.
@@ElectricBillAlbright yea it’s definitely not a great idea period. It’s obviously not something anyone should do with vehicles now a days. If a wire in a harness has a short you’re already going to have quite the repair regardless cause you dang well know that it’s not the only wire compromised. As for the repair you’re definitely going to have to do a solder repair to mitigate making the harness massive. Doing lots of swaps nowadays I’ve had my fair share of harness splicing jobs. It’s not fun
I was a lab technician working for a well know generator set manufacturer. I was assembling a prototype gen set and as I tightened the negative terminal on the battery I was momentarily distracted and the handle of my ratchet wrench hit the positive terminal of the battery. In a flash the ratchet turned red with heat with my hand stuck between the battery and the 1200 degree ratchet. The battery exploded but it saved me from losing my fingers. I now have great respect for the potential energy stored in a battery.
Woa, quite a tale! 😮
Origin of the creeper sound:
Student : is There is enough current in that battery to kill me ?
Instructor: it’s not the current that kills you it’s the amps!
My hobby is car audio, so naturally I end up with scrap circuit boards and batteries and components. Few years ago I would screw around in the garage after work every day, and did a ton of melting wires, blowing up caps, shorting PCBs in unique ways. Just to see what happened. I feel like that was good hands-on experience to truly understand the concepts I had already learned through reading or mentorship. I remember powering up an amplifier board and just dragging several wild strands of wire across it and watching things pop. Or similarly shorting things out and holding them until they melted everything. I was careful not to breath the smoke so much, but I probably lost some brain cells still.
Damn dude ngl thats fucking awesome lmao
Not disconnecting the negative first, and reconnecting last, is a safety protocol, I will never forget. A science teacher touching the wrench to the frame, as he was disconnecting the positive. He was directly over it, when the lid blew off and broke his nose, covering him in H2SO4. As I turn on the hose, he kept asking what happened. Imagine explaining the science to a science teacher.
You mean disconnecting negative terminal first and reconnecting negative last is the safety protocol, not "not disconnecting and reconnecting last"
@@Tsimi1234Remember ELLE - Earth Live, Live Earth
Earth then live to take off, live then earth to put back on. Earth sometimes sparks (if there’s a little of a drain somewhere or improper earth straps are used) but that’s protocol. Don’t end up with acid burns to your face.
True.
“What are those guys doing with my car out there..?” Says the guy waiting, peering through the lobby window into the tire shop.
😂😂😂 when I was in automotive school the guy teaching electrical was talking about short circuits and opens on day 1. Got a battery on the bench and wire harness with a couple components for loads. He asks us what would happen if there was a dead short. The other instructor, who was teaching the second class and just happened to be walking by goes: "what? You mean like this?" As he slams big wrench across the battery posts! 😂
tech: "no you're not gonna die"
the leaking hydrogen fumes: 😳
Probs not hydrogen. it would have ignited from the red hot wire. most likely it's the burning insulation lmao
@@visilyrom i was making a joke for if the battery started off-gassing when he did it lol
“ hydrogen fumes “ ? 😂😂😂😂😂😂
@@mjhubbard14 yes. car batteries off-gas highly flammable hydrogen sulfide
@@mjhubbard14 The water and the Sulfuric acid in the battery breaks down into hydrogen sulfide over time.
Guess they haven't seen a battery blow up.
the wire cant handle enough current for anything to happen to the battery, now if you try this with a 8 or 10 gauge wire... yea you might detonate the battery.
@@jackasshomeyThat's not the only way a battery can explode.
@@jackasshomey Just charge the battery for an hour and flick a Bic real close to the battery to see what the problem really will be! The wire isn't the problem. You ever see the Hindenburg? Know how fire crackers go bang? Ever seen a lady finger firecracker? it is the tiniest of all firecrackers. 1/8" in diameter and maybe 1/2' long. You will only want one to go off in your fingers. Now look at the size of that battery! How big a bang you think that thing will make?
@@mikerogers7502 A battery will only EXPLODE if you create a spark near it after it has been charging. Pretty much any time after the car has been running. When batteries charge they put off Hydrogen gas! Think of an EXPLODING Hindenburg! Not just one that caught fire!
@@tbusch63 its a matter of mathematics... the battery physically isn't able to explode because the wire broke... its literally the principle behind how fuses operate... and the hindenburg caught fire cause it was made of flammable material cotton... and you'll notice it burned and didn't detonate because it was pure hydrogen gas not hydrolox...
So this is what happens when i leave my truck at the shop.
The master mechanic uses my truck as a demonstration for all the apprentices
-“Honey, why is the dealership experimenting on your brand new 2025 Cadillac Escalade?”
-“It’s for educational purposes, love.”
Btw when you do this make sure all your electronics are hooked up and make sure all the fuses are replaced with wire that can handle a lightning strike. If everything is done correctly you should now have a vehicle that doesn’t work 😂
This won't damage your car.
@@SteveWhiteDallas Yeah the electricty wont pass through the rest of the circuit
This is the first item we were trained on in a high school mechanics class, back in 1972. Teacher used a piece of coat hanger that turned red hot.
They normally melt after about 3-5 seconds.
That's pretty awesome and I'm going to be showing my grandkids for sure! I kind of knew about the melting but the yellow smoke is cool!
He's literally playing with fire if the battery explodes in your face I hope you still able to laugh and joke afterwards
Now let's see that done with a wrench
If i accidentally did touch it with some kind of metal would it damage my batterie?
@@decel4919 It would damage you, not the battery.
🤣🤣
My brother accidentally did that and a shard of the wrench went into his thumb and he couldnt get it out smh shits dangerous , then my boss said one time he was younger and did the same thing and the battery expolded and burned his shirt off so yeah its not something to play around with
@@diamondboy3456i did it with a ratchet 17 years ago back in highscool autotech. I still have the same car. Might have to sell it now. Left leg was amputated last December.
Alternative Result: The battery explodes and they all go to the hospital with acid burns
Nah that battery is plenty strong to handle something like that
I've only heard about that so many times but never seen a battery explode and i hope i never will.
@@Raven777777777777777 that depends on the type of the battery, for example the ones that contain lithium are very likely to explode when abused
He knew the wire would burn open. Try it with a 0 guage wire and things will go differently.
@@zbychu22169normal batteries yes car batteries literally have to be rated to withstand crashes otherwise cars would just explode all the time I've exploded plenty of AA batteries and it's really easy because it's just a metal foil keeping everything together and in place with a car battery the case surrounding it usually won't let it get that damaged from most normal accidents I wouldn't trust a 1000lb lithium battery that's literally the same length and width as the car those seem dangerous and if it explodes there's nothing you can do everyone within 100 feet is immediately dead and probably gonna cause injuries and damage a long while further than that but also idk I'm a 20 year with a GED so yall do what you will😂
Very insightful!
That's why you always disconnect the neg terminal especially when working on 24 volt systems that can melt a wrench in your hands . Always observe safety steps
I work hvac for nearly 10 years iv never heard of a wrench melting to your hand with 24v…..
Idk, one time I shorted battery with 13mm wrench on less than 1 sec and shit heated up so much you couldn't hold it in hand. That was on 24v system, bus mercedes benz citaro. Don't believe hvac can heat it up like that but 2 bus batteries conected in series are real double trouble
When I was a kid I had an old pickup with a side terminal battery. I had tools crammed everywhere on this thing and I’d put the lug nut wrench in the wheel well under the battery. Yep, one day off-roading I bounced the wrench up enough to bridge the terminals and the lead melted the wrench onto the battery. Big smoke from under the hood. Pop started it and drove it home. Old vehicles were kinda incredible that way.
@@DannyPlays96
To be fair a car battery can dump hundred of amps across a decent conductor, so It'll heat up a wrench quite quickly, but not so quickly that'll it'll melt your hand given that you'll probably pretty much instantly break the circuit once the literal sparks fly.
What car has a 24volt s system?
Went to a vocational high school. A kid that was in the automotive shop shorted out a battery by accident. It blew up in his face and it shattered his eye socket, blinded him in one eye and left him with a six inch gash/scar for the rest of his life. And these simpletons are doing it for fun… smdh
@scottbarrett3191 They will do it only once. Just like that kid!
Lol it won't blow up, that's barely a short. The wire probably has a resistance in the range of 10 to 100's of milli-Ohms.
That wire would do nothing to a battery that size, kid must of shorted the circuit with something big,
When the mob catches you wearing a wire
Customer who picks up their car “Whys my check engine light on?”
I caught my socket on the fender of my Buick while putting in the pos side of the side post battery and it welded to the car and quick. Knocked the ground wire off and quick bc it was about to get funky, lesson learned.
yup gotta think fast in those situations. tho many in here would claim a level of perfection where this type thing never happened to them.
Make sure when you're taking out the battery you lay your wrenches sideways on the battery because it's the perfect tool tray.
Your an idiot you never lay your tools on a battery even if it's disconnected. The same shit can happen if the positive and negative touch with out it being connected to the truck cause the battery still has power
and always store your bettery sideways
Make sure you touch one end of the wrench to the positive and then the other end can literally touch anything metal. Like the engine block.
Arc Flash is not a superhero
Jumpstarting works better too when you connect your red cable to the positive of your battery and the opposite end of the red cable to the other cars negative then the black to the remaining connections. Then grab the red cable while attached still and hold a wrench in the sky for 3 seconds. It’ll start right up everytime.
“Gently used no Low ballers I know what I got” 💀😂
Customer 💁🏾♂️: why is my new battery acting up
Mechanic👨🏾🔧: hey guys let’s put negative and positive to see wat would happen
This is why you always have a fuse or 12v breaker on positive wires going from battery to extra accessories & lights you may install.
If the insulation wears off a wire or it gets pinched/pulled and contacts metal then you will burn wires in two and may start a fire in your vehicle. 😮
“I’m I gonna die?”
“No you’re not gonna die.”
the offgassing hydrogen from the battery: 👁️👄👁️
💀💀💀 🪦
... because the lung cancer won't show up until a year later.
Kid: “Dad can we go see fireworks ?”
Dad: “oh you wanna see fireworks?”
*pops up the hood*
“No u not gonna die”
smoke clears… an unfamiliar face emerges
“Hello my child”
its more fun watching someone pull the coil wire while the motors running bare handed
It doesn't really hurt that bad but it is shocking.
😆
It's called zee resistance dead short
I’m glad everyone was wearing safety glasses
Bro is really trusting that battery, a leak, a piece of molten metal find it’s way in and it’s over
Imagine the car garages messing with your pride and joy 😂
If your vehicle is your "pride and joy" you have issues and need medical help.
Consumer nerd.
"am I gonna die?" 😆
What if he just said
"Yes ...1 ...2 ...3"
Your instructor forgot the mention? By doing that experiment that you popped every fuse and wire hardness in that vehicle. Congratulations, you just totaled a vehicle in 3 seconds without even driving it. 😂
Customer states: I came for a tire rotation and now I have 7 lights on the dash
Breathe that clean, colored air in.
May be they get high from that smoke
Another reason why I do my own oil change 😂
A nice voltage-resistance-current formula works better than any demonstration. You can simply forget what you've seen on YT or not intuitively undestand what was going on. Formulas and theoretical understanding is what actually makes you safe from errors. Cos it you simply know that voltage applied to low resistance (don't necessarilly have to be a short direct wire) means lots of current, and that high current means lots of heat, you would never do anything crazy.
Instructor: That's why you don't do stupid sh-t
It’s all fun and games until the hydrogen is ignited, take it from one who has witnessed a battery exploding.
I knew there was someone else out there that had experienced the explosion.
He had his OSHA approved safety glasses on 😂
Maybe they verified beforehand that it's a _sealed_ lead-acid battery
Good thing you bought a new battery, buddy, this ones no good.
Now if they had been charging the battery for awhile, the hydrogen gas, could have blown the lid off the battery.
That sounds EXACTLY like a creeper hiss before it explodes
really trusting those handles on the pliers lol
Mistakenly touched both poles with a wrench. Blew out the ignition fuse.
And to this day the shop smells like burnt wires
“alright y’all now make sure you breathe all that shit in before we move on”