Fun with ultracapacitors!!

[@Afrotechmods]

Interested in learning about wireless power? Subscribers can get up to 80% off Wireless Power to the People - Wireless Charging 101 on udemy using the coupon code "KZbin" www.udemy.com/wireless-power-to-the-people-wireless-charging-101/?couponCode=KZbin

[@noraxi]

Good conclusion XD

[@edgeeffect]

When I was a kid, I had an electronics textbook that said that a 1 Farad capacitor would be the size of a house if it was even possible to make one...... 45 years later - say hello to 2600 Farads!

[@Tigerman1138]

edgeeffect The entire power of the first space shuttle’s computer--you know that thing went into space and returned withstanding millions of degrees of heat returning to Earth’s atmosphere? The internal O2 sensor in your car’s air filter DWARFS it. Computer’s took up entire rooms 50 years ago. Now I watch this video, and you carry on your hip, on a small supercomputer.

[@VSSFantastic]

really all it takes is to play around with the surface area and the distance between the two plates of the capacitor, at the time they probably didnt have the methods required to make the tolerance required for small distances as they have today

[@cocosloan3748]

But is this capacitor same in properties like 1F block kapacitor? No!

[@RichFreeman]

These aren't capacitors. They have way more internal resistance. If he touched the leads on an actual capacitors of this capacity I believe the wires would turn to plasma. Just look at videos of railguns and such.

[@brandysigmon9066]

Rich Freeman I was wondering why it didn't instantly discharge like all caps I have seen before

[@LaskyLabs]

"Remember! Safety is my number two! My number one is fun!" -ElectroBoom

[@thetupolevtu-1602]

For a video from 2010, this is really good quality

[@bluesillybeard]

ikr, I thought this was from 2018 or something before I read the date

[@geraldbal7945]

true videos now a days are so scuffed no one complains

[@vertexrikers]

"The PCB tracings aren't melting anymore." I need this on a T-Shirt. Seriously.

[@Calthecool]

Words to live by.

[@Nate-hv2ub]

Yes

[@grendelum]

It’d make a good song title...

[@midleno8364]

Imagine acting like you know all of this

[@Razvii]

"now they instantly vaporise" added and I'll buy 10

[@morgankosokowsky812]

"In this video we are going to commit random acts of destruction..." That is by far the greatest hook I have ever heard. 3 seconds in and I'm completely Invested

[@RedfishCarolina]

I subscribed immediately after hearing this. Then got some solid science as a beautiful bonus.

[@Afrotechmods]

No. Using this to weld would be a really bad idea. You aren't supposed to short the caps for long periods of time.

[@AnalogDude_]

where are you? please, bring us more fun.

[@nonowords7857]

hey what happens when we connect them in parallel? can we get higher current draw?

[@Aaa-vh2lm]

@@nonowords7857test it yourself Mix sugar with baking soda heat the mixture Carbon foam will form Cut slices of it connect two of them with electrodes and put them in an electrolyte Ta da a supercap

[@i8kons]

Adding these formulas makes a world of difference in understanding how these capacitors work and the explanation of battery vs capacitor is phenomenal. Videos like these actually TEACH us something vs just exciting. Still it was exciting!

[@r3d0c]

"Wow that beaver really took a pounding" lool

[@dalezapple2493]

As a Michigan resident I just love you wacky Canadians...thanks for not invading!

[@DanHaiduc]

Pffhchhchhf... and it's child-proof wording!

[@BillAnt]

Warning XXX rated content ahead! :D ... Yeah a really good pounding by shoving a 2600 Farad cap up the beaver's beaver .. tsk-tsk

[@willdwyer6782]

@@dalezapple2493 Michiganders are invading Canada.

[@firebladex8586]

@@willdwyer6782 Glad I'm on the west coast! 😜

[@KeystoneScience]

You should try them in liquid nitrogen to see how many Amps you could draw with an even lower resistance xD

[@derknistermann5613]

Keystone Science Nice to see you all over the Science channels! :D

[@whatevernamegoeshere3644]

Keystone Science it would freeze the electrolite and they would be done for. The frozen electrolite would penetrate the separators

[@henryswan1374]

keystone science you are my hero

[@abecoulter18]

Maybe you should slow down when you talk

[@whatevernamegoeshere3644]

?

[@fuizipra]

Small capacitor Capacitor Large capacitor Super capacitor *U L T R A C A P A C I T O R*

[@chanakyasinha8046]

Then comes Mothafuka capacitor

[@oleg4260_]

Then comes Ni-Cd accumulator.

[@chanakyasinha8046]

@@oleg4260_ then comes the netron star

[@technicallydifficulties7094]

AND THEN THE INFINITE CAPACITOR

[@BillAnt]

Anyone else realize that this 2,600 F cap can also be written at a 2.6KF (KiloFarad)?! ;D

[@grendelum]

I worked in an electronics lab decades ago and the first thing I was taught was to always presume the ultra caps were trying to kill you.

[@danek_hren]

Ultracaps can't kill you. Even if you apply like 10000A at 1V you simply can't be killed. Ever heard of formula I=V÷R?

[@fabts4]

Thumb up for the most destructive way to do a continuity test!

[@AlexAquarius963]

I'm howling with laughter immediately when you said, "Wow, that beaver took a pounding." My male ultracapacitor liked it too.

[@travellingspud7972]

"that beaver can really take a pounding" HA!!!! Wow! Wow! Oh man. Well done Sir.

[@dexonaut666]

That Bever really took a pounding... ROFL!

[@jamesu.2541]

+Anthony Donker That's what he said!

[@MegaZsolti]

Your profile pic fits the occasion.

[@DragonsREpic]

there i just gave you ur 69th like, now we can all 69 the beaver *cheers all around*

[@tiemze]

I get it. I'm slow

[@KBS117]

Betty white says it best, if you wanna be tough, you need to grow a vagina, those things can take a beating!!

[@Afrotechmods]

I've never heard of a slow draw capacitor. For home solar system designs there is no capacitor on earth that even comes close to the energy storage per dollar that batteries give you. I don't expect this to change any time in the next few years.

[@GDMHificationranpitc]

hi, what about now?

[@はいこれはロボ子の婚約者]

no. ask again in a decade

[@rodriguezfranco3839]

Use them to reemplace your car battery

[@Afrotechmods]

"If you care about safety, don't do anything I did in this video!"

[@mr.youtube975]

yeah i got you..... im not gonna do anything shown in this video .....wink wink

[@Prithvidiamond]

I know one guy who can do this with ease and his name is Electroboom...

[@Druid_Plow]

I would love to see these things adapted to work with RC cars or planes. I know a few people have done super capacitor rockets, but why dump all the energy at once? 20 min is a super fast charge time compared to most RC batteries too. granted your power supply probably costs well over 50x the average rc battery charger too.

[@EForchetto]

Thank you so much for that instructive lesson. I've recently discovered that there are devices on sale right now to enable emergency starting of even large engines using ultracaps. Found it difficult to believe, but your explanation has helped no end.

[@22staryds92]

if only you had photonic inductions power supply.. X3

[@ecutechltd]

was thinking the same thing! ...i aint avin it....

[@ikonix360]

@@ecutechltd He would have fun with these caps. Pretty sure he would run one up to until it pops volts.

[@offroadrc110]

Let's see 'ow it likes 60 thousand ampsh...

[@ikonix360]

@@offroadrc110 wonder what's become of him? I miss his videos.

[@ikonix360]

@@offroadrc110 see how big a bang it will make.

[@kaseymathew1893]

2600 FARADS?! The thing is basically a grenade!

[@rykehuss3435]

Yes it is. Dont mess with big capacitors, theyll absolutely kill you dead instantly.

[@ocloud7389]

@@rykehuss3435 so not much pain

[@ronaldkoets4536]

@@rykehuss3435 Don't think you die from 2.5 volts.

[@rykehuss3435]

Ronal Koets Yeah I was talking about if it blows up. Which is unlikely, supercaps are pretty safe. Also I was talking about big capacitors that have high output voltage, like one in your microwave oven. That can kill you.

[@ronaldkoets4536]

@@rykehuss3435 Ah oke thx i understand now. Yeah and those microwave caps are realy dangerous.

[@FfejTball]

"Wow, that beaver really took a pounding." Just deadpan. THIS GUY. IS AWESOME!

[@benjaminthomas6547]

isn't it strange how the energy formula for a capacitor is so similar to the kinetic energy formula? I wonder why that is..

[@NotLegato]

because you get the result by integrating the infinitesimal increments of energy, which for something int. x dx becomes 1/2 x^2, and just has another coefficient. this is true for a lot of physics formulae.

[@chanakyasinha8046]

Because electrons have speed foool

[@benmusgrove9465]

I think it’s because the energy stored by a capacitor is the area under a voltage-charge graph. The area of a triangle is 0.5 * base * height so energy stored is 0.5 * charge * voltage. The gradient is also equivalent to the capacitance (charge/voltage).

[@billymaroko3736]

Basic calculus

[@rich1051414]

Because they are the same thing stored a bit differently :P It's only too bad converting between the two is so lossy most of the time.

[@diegoromero3628]

1:30 are you tired of reverse engineering your pcb with no datasheet of it, nice!! Buy a supercapacitor!! ahhahaha

[@Theedoek07]

I really like your voice, afrotechmods. It's very smooth and clear when explaining things. I wish my teachers talked like this back in the days..

[@CookieRaider941]

Please make a coilgun with this!

[@MrI80r]

You should have much more voltage and less capacity so it would have less of a discharge time but more of a current on a coil. Though I might be wrong

[@connoroakes1611]

+MrI80r you are correct

[@SAM_Vertigo1]

Cookie Railgun is better, I think

[@schtinky1151]

I'm a bit hard of hearing because my hearing aid broke, but it's really cool how many ferrets they can put in that capacitor.

[@bluecatdk]

Seth Begley capacity not animals reeee

[@sjoerd104]

2010: no 2011: nah 2012: nope 2013: asking again? no 2014: nope 2015: na 2016: still asking? 2017: nah 2018: hell no 2019: yea boi

[@Big_Chungus935]

Yeah that's how you tube works

[@venetrix8698]

Hahaha creative, orginal xD lmao hahahahahhahahahahahhahahahahahahhahahahahahahahhahahahahahhahahahahahahhahahahahahahahhahahahahahhahahahahahahhahahahahahahahhahahahahahhahahahahahahhahahahahahahahhahahahahahhahahahahahahhahaha

[@jonathanwarner1844]

When I was a kid, I used to do the same with a 2 Farad capacitor. It had nothing on this, but I had great fun with sparks and spot welding. Amazed I'm still alive really, with the various experiements I used to do.

[@wayknbayk]

wow! that beaver took a pounding

[@ilanmagen]

Awesome, hope you use UV glass or welding mask

[@youtubegoogle4163]

Please send some of these Capacitors to ELECTROBOOM !!!! He genuinely needs these !

[@danek_hren]

FOOOOOL BRIIDJ RECTIFIAAAAH

[@Martin1519]

Plz help. I want to try welding with my caps. What's best best way I can do this?

[@Afrotechmods]

Don't do that.

[@hobbyelectronics7600]

As said. Don't do that. Uncharging all of the energy from the cap at the same time is a bad idea.

[@SEEVCar]

Hobby Electronics but muh coil gun! :D

[@dickcheney6]

Tonio9606 BAD IDEA! The caps are likely to overheat and catch fire or explode when used that way.

[@Benoit-Pierre]

+Tonio9606 I am usually fine doing many dangerous things; but for once, I will agree with other people; so, for the 5th time: just don't. Entering the welding world with these is dangerous.

[@ryanmalin]

This was the first video of yours that I watched. I had to build a race car from a super cap for an engineering course. The catch was we could only spend $10 on the cap. I ended up scoring a 650 farad 2.7v maxwell boost cap. Along with a RC car motor, aluminum rails and ball bearings it was easy to make a pretty quick little rail car. I didn’t win the race but I had the coolest and fastest car in the class and that’s winning in my book. 🥴

[@rock4cheese]

10 years later, still an awesome video!

[@christiaansteenkamp5617]

Are you using dish washing gloves in the section where you are melting the 10 cents?!

[@theeundisclosed]

beavers are known for their resilience

[@legohexman2858]

I'm sure it will move on eventually

[@chadc437]

Afrotechmods: Pounding Beavers

[@johnjriden]

Have literally seen this video five times and every time I come across it I have to watch it👍🏼👍🏼

[@flyingfox8072]

Dispite all this fireworks, it is quite safe to touch the terminals of the 10v bank.

[@Ninnlilium]

Looks like im definitely buying this 6000F 2.7v capacitor or two :3

[@Kineticwizzy]

I have literally no idea what happened in this video except that he made things sparky

[@AxeAR]

You're not alone

[@johnayap6861]

Sir, can you make electrolysis with that??? please do it with water...

[@milanhlavacek6730]

These caps have too low voltage to put throught sufficient current

[@noweare1]

Well, the like to dislike ratio is off the charts, congratulations ! Can you tell I'm a numbers guy. LOVE your videos !

[@AThreeDogNight]

Well I completely forgot to ask you of how many would it take to crank a vehicle on a normal summer day & then compared to the CCA. we always need in the harsh winters? Thanks, Tom.

[@Afrotechmods]

I believe Electroboom and a few other youtubers have videos where they replace their car battery with ultracaps. Check them out

[@AThreeDogNight]

OK, thanks Bud, but I did want your expertise as well because I believe you will maybe have more answers but I'll respect that.

[@WhoWantsToKnow81]

ROFL Wow, that beaver really took a pounding!

[@MrStupidfunnyvideos]

Dammit I was hoping I would be the first to make that joke

[@SunRabbit]

As an avid coin collector, I kinda felt sorry for it. He could've at least mentioned the date. Hope it wasn't the 1947 dot variety.

[@graphenepixel8231]

try 350 of them in series and see what happens.

[@DaffyDaffyDaffy33322]

That would be the same as a 875 volt cap at ~7.4 F. Explosive!

[@philp5013]

how to wake someone up with a bang

[@catsoften]

Nova Marquez-Delp the beaver can't take that much of a pounding.

[@gamerwg5411]

@@DaffyDaffyDaffy33322 Explosive and pretty much an instant kill if you touch the terminals.

[@ikonix360]

@@DaffyDaffyDaffy33322 bet that would be more powerful than that super capacitor photonicinductuon had.

[@Afrotechmods]

Don't do anything I did in this video.

[@theoneguy3972]

I love old you tube video's, thumbnails are Exactly what It is in the video unlike today's video's

[@TrollFaceTheMan]

Damn I would of loved to of gotten these when they were available need some big caps for a vid. Too much price to buy them now though...

[@afrotechthecyborg4766]

This guy....This guy.....you are my king.(kneels)

[@Afrotechmods]

+AfroTech The Cyborg Rise, Sir.

[@afrotechthecyborg4766]

My liege, What do you request of me?

[@Afrotechmods]

AfroTech The Cyborg Bring me my longsword and soldering iron.

[@afrotechthecyborg4766]

Yes,ma'lord.

[@afrotechthecyborg4766]

Afrotechmods orig02.deviantart.net/fe0c/f/2014/043/5/f/jeweled_longsword_by_cakespell-d764tyg.jpg The sword to slay your adversaries.

[@SkyTheLeafeon]

It's both volts AND amps that are required to kill oneself.

[@ceneblock]

You can't have one with out the other. V=IR

[@fleshangel489]

We shall make an experiment. We shall test current VS YOU

[@Garfield100]

ce neblock, you can, all voltage is, is a difference in electric potential. You can even measure this without having any current flow using an electroscope.

[@gearhead1302]

Can't tell you how often I've tried to explain this to someone that repeats the old "it's the amps that kill you not the volts" statement. It's usually someone that knows absolutely nothing about electricity and then they sit there and argue with me even as I touch the terminals on a car battery that has 800 amps 🤤

[@chanakyasinha8046]

Its resistance that kills

[@Henrik229]

its sad that electronik goldmine does not ship to gemany :(

[@danfishermen5362]

:(

[@zn4rf]

my bet would be bc it does not meet certain VDE standarts

[@manesvenom123]

It blows up my mind!! I LIKE IT much, AWESOME!!!! When I was a student studying electronic, I was told not to do that during lab, now I can enjoy the experiment and clear explanation without harm. :P

[@ionizerusa]

This wonderful capacitor video is hilarious yet contains very important information in my awareness of electronics.

[@elijohua]

"Wow that beaver really took a pounding" ... LOL!

[@nitelite78]

haha.

[@juulkitty9175]

how well would these work with a handheld railgun?

[@kylebaker2694]

EXPLOOSION! !!! idk 😐

[@treykilgoreiscool]

EXPLOOSION! !!! you would want a high voltage as well as large amounts of power.

[@HL65536]

just do the math: 1000A draw makes them empty in about 2.6s. 1000A means already 0.7V voltage drop due to internal resistance. Usually in a railgun or coilgun the capacitors need to discharge all their energy in milliseconds, so nope, wont work (except maybe using them for a fast recharge).

[@treykilgoreiscool]

HL65536 the only way he could do that is to have a room full of 2.85v 3400F caps and put about 30 in parallel and have at least 100 of those packs in series

[@juulkitty9175]

HL65536 ok, thx :)

[@wwindsunrain]

How do these behave at higher frequencies? You made a nice video about the inductance of electrolytic capacitors and the need to supplant them with ceramic capacitors. Where do supercapacitors and ultracapacitors fit in on that?

[@jacquedreyer5479]

Just watched the diode tutorial and thought it was brilliant - well done and thank you very much!

[@SodaWithoutSparkles]

Nobody: KZbin: I think you are going to like this video from 2010 after 11 years

[@maddhouse99]

I had to pause the video after "Wow, that beaver really took a pounding" and find the Subscribe button.

[@TheAmazingTechZone2]

For people who are wondering if they will die from touching those wires... If you touch the wires, you will not get killed due to the fact that the capacitor's voltage is very low. Think of the human skin as a resistor. In order to find out how many amps are going through the body, we could use Ohm's Law (Voltage/Resistance = Current). The average human skin is around 10k - 30k Ohm, depending on how wet your fingers are. In this example the caps are about 9 volts and let's say the resistance of our fingers are pretty dry and are about 10k Ohm. (9 volts/ 10000 Ohm = 0.0009 Amps) 0.9 mA won't be enough to even give you a slight tingle. In conclusion, these capacitor are very low voltage so they can't kill you or even give you a slight tingle.

[@siddarthakadali7719]

how about connecting the supercapacitor output to a stepup transformer or a flyback transformer ?? is it dangerous then??

[@0x8badf00d]

Your power supply will be dangerous then, not the capacitor itself.

[@sanjoligupta8213]

Uhh u can touch these bare wires right? I mean such a low DC voltage won't do any harm. Yeh the current may heat up its path after a while but if u hold one in each hand u could hold it for a while without any permanent damage right?

[@danek_hren]

No current will flow through you. At least, not enough to even shock you.

[@hansotimunda]

Talk about charge retention please ! How long? Use as a replacement for car/ motorbike battery ? Thanks, Good oratorical skill.

[@lokeshrahul8504]

If it's 1.7 v can i use it as AA size battery for wall clock, so that it works for my future generations too, anyone comment

[@MIW_Renegade]

lokesh rahul haha good idea

[@Stijak85]

But, as he showed when comparing it to two AA batteries, batteries actually have bigger capacity, so they will power your clock for longer. It is just that due to the internal resistance they are not capable of outputting such high currents (required for sparking and melting).

[@theromanempire9236]

@@Stijak85 an extremely high power clock

[@JoshuaC0rbit]

What kind of coil gun could you build with capacitors like that?

[@RichFreeman]

Wouldn't these have too much resistance for that? I need to look up the ESR of actual capacitors.

[@thedotgamer9592]

ElectroBOOM's wet dream

[@zorgitron]

5:35 Thought he said, "Finally, let's vapourize an ant." and I got excited. What a let down.

[@harshitbhangre]

I only hv heard bout supercapacitor and normal capacitor.... 10 yrs ago ultra capacitor🔥🔥🔥

[@heheheheheeho]

"That beaver really took a pounding." really?

[@leestons]

tokfrans Really.

[@nadirbengana]

if you touch it will you get an electric shock or will you just get burned ?

[@DragonsREpic]

a car battery is more dangerous

[@Baiko]

+Motorguy81 Yeah, the algorithm doesn't always know when to write your wrongs.

[@girixd2735]

under normal circumstances neither you Will get a shock nor a burn.

[@ThatGuy-nv2wo]

not a shock nor a burn*

[@schwarzarne]

You will burn your fingers if you touch the coin after shorting over it though.

[@TheRanguna]

7 years have passed and Maxwell was bought by Tesla, how crazy is that ?

[@____.__._.._]

1:32 Fantastic way to study connections Btw i wonder can we make electrical arcs with those.

[@lunaticpagan2663]

Hello, Thanks for the video, it's really helpful. Could you also provide the discharge time of the same capacitor?

[@glenvalleyranch]

"Wow that Beaver really took a Pounding." Hilarious!!!! LMAO!

[@javierxrtd]

I just found my sensei!

[@NetPwn]

You my friend know how to party! :D

[@Rolancito]

@2:34 why is the impedance of the battery given at 1kHz and why do you use it then for DC calculations?

[@EnergySeeker]

nice video , what is the best way to charge these caps ? and is the max voltage we can charge it with ?

[@Insertnamesz]

LOL THE BEAVER

[@vrealon7738]

That beaver really took a pounding LOL

[@wmonger]

So....testing these on your tongue would be a bad idea.

[@realflow100]

Well its about as bad as putting your tongue on a 9v battery for a smoke detector.. because the voltage is not very high. your tongue will not vaporise. theres a difference in conductivity between solid metal. and your tongue. your tongue isnt going to incinerate. because your tongue is not a solid piece of metal. your tongue is a very poor conductor. You don't get shocked when touching both ends of an AA battery with 2 fingers on the same hand. You dont even get shocked with 20v DC across your fingers. You would need at least 50v DC or higher to even start to feel a tingle!

[@philp5013]

If your tongue resistance was 10k Ohms (which I believe it is) there woud'nt flow a huge amount of current. I = U/R (9.65V/10000) = 0,000965A. That would't hurt.

[@byoung255]

PrashMotion You just wouldn't want to accidentally short the wires while it was on your tongue

[@philp5013]

short the wires of the capacitor bank? or of the 9v block?

[@cluckwork]

Is it just me or does he sound a bit like a robot?

[@Afrotechmods]

TARGET IDENTIFIED FOR TERMINATION

[@keaganwright-meier7716]

Afrotechmod beep boop beep beep bbbbbbooooooppppp cargiblarg cargiblarg cargiblarg cargiblarg cargiblarg beeeeeeep!!!!! boop error error error error error 404 Afrotechmod beep boop beep beep bbbbbbooooooppppp cargiblarg cargiblarg cargiblarg cargiblarg cargiblarg beeeeeeep!!!!! boop error error error error error 404

[@SirNightmareFuel]

I, for one, welcome our robotic overlords.

[@j-smr8027]

Oopsi! Tube he sounds like the guy in the elevator in five nights at Freddie's sister location just search(exotic butters)

[@MIW_Renegade]

Cluckworks maybe a robot sounds like him 😂

[@nubie1100]

Hi just wondering if ya can do a vid and put a flint out of a lighter on that thing and see if it would just pop...please

[@fim-43redeye31]

Are there ultracaps that are designed to be shorted, though? Or power supplies we can use to replicate these experiments somewhat safely? It seems to me like the main danger is the caps exploding.

[@garybarbourii8274]

"that beaver really took a pounding"

[@uberscientist]

You sound like the postal2 dude

[@Flofy387]

:D

[@rafmael6127]

Awesome, can you make a video to overcharge it more than the maximum volts?.Try the small and cheaper one ,thanks.

[@JerryEricsson]

Thanks, Electronics Goldmine just had some 350 farad 2.5 volt Boost caps for sale at 4 bucks each. Now I don't have a LOT of cash, hell I don't have much cash at all but I did order 3 of them, well because I really have wanted to play around with these for years and this is the first time I found any that were affordable, these are advertised as new, removed from circuits, and have solder tabs on each end. They are in D Cell format, think of the flash light you could put together??? Well perhaps not, never tried to push super caps through an LED, wonder how big a resistor I would need to keep it from blowing up?

[@TheArnoldification]

This was a rather interesting watch as I am currently learning about capacitors and resistors in my physics class.

[@10100rsn]

If you're going to try this yourself I recommend setting up some type of quick disconnect switch or breaker in case the wires become stuck and get too hot to touch. Much better then a complete meltdown.

[@rocphill]

I love it. I wonder if I could use this project for small arc welding ! And where are these caps are available from !

[@lnico92]

Hmm I am wondering something : In theory you could touch both wires of your ultra capacitor since the voltage delivered is too low to push enough current into your body to harm you , right ?

[@jacktheninja]

1:30 i use this sometimes to find those hidden traces and fix my PCB then i found out i damaged it more ...

[@santiagoestevez623]

Seems like a good idea to build a quick 16850 battery spot welder Suggestions?

[@bradleyberthold4606]

Whats the self-discharge on one of these? Seems like it would be better to use for a portable power pack than even Li-Ion

[@mtn_sivliu]

this is actually very fun to watch,thanks for your effort to make this video it REALLY helped me to understand many things and having fun in the process. i really like your videos :D Thanks again

[@mydude3254]

I'm recapping a circuit board from a Pioneer sound system and found a cap on the power side that was rated at 400v. I took care with replacing that one haha.

[@2tommyrad]

A portable spot welder :P Your humor is as good as your electronic knowledge/advice!

[@BKBrunelle74]

Having that much power and doing neat stuff with it is fun, but I would like to know what would be some particle applications for super capacitors? I for one would love to have a 'bank' of them during a power outage, so how would I use them in a practical application during an outage?How would I turn that raw power into useful energy?

[@netsurfer10000]

These capacitors barely store any energy, they are just good to buffer extremely quickly spikes. Stuff like noise, smoothing out power supply and making DC from mains power - things that are VERY fast and don't require a lot of energy storage. The situation you are describing would be best suited by lithium ion batteries, which hold much more energy, do not self discharge as quickly and hold a lot more energy for their size and weight. Such a thing is actually currently being built in my city by Mercedes, using batteries from electric smart cars.