What can be made from 500 capacitors ?

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  • Опубликовано: 13 янв 2025

Комментарии • 191

  • @billkillernic
    @billkillernic 2 года назад +225

    Why not breaking the capacitor array into 3 seagments and switch each seagment after it discharged that way you will cut the huge amperage by 3 and will increase the duration of the weld by 3

  • @gendragongfly
    @gendragongfly 2 года назад +66

    I've always wondered if building a capacitor bank out of regular small electrolyte capacitors was worth the effort. Since they are so common, you can get decent bulk discounts on them which is a big plus. Thank you for confirming that indeed expensive caps are not a requirement for a useful (and scary) capacitor bank 🙂

  • @jessstuart7495
    @jessstuart7495 2 года назад +52

    Your lead inductance connecting the capacitor bank to your welder and the lead inductance of the wire leads for the welder itself are limiting the peak current. Use a beefy coaxial cable (RG-8U) or at-least twist your leads (form a twisted pair tx-line) to reduce the series inductance.

    • @jacobp.2024
      @jacobp.2024 2 года назад

      Just know that I would like this, if I was a tradesman and knew for certain this was good advice.

    • @The.Plague
      @The.Plague 2 года назад

      @@jacobp.2024 If they're correct then it's good advice. If they're wrong then it can't hurt. You can never go wrong with larger cables when carrying current, especially in a situation like this. However, smaller cables can get you in trouble, especially in certain situations where they might melt and cause a fire due to overload.

  • @Herr_Bone
    @Herr_Bone 2 года назад +21

    I still own a fanastic MIG/MAG welder from the German company ESS. They used large capacitor banks in an assembly of many small ones in parallel. The welding result was very good, this cap bundle gave a nice punch at the beginning with full current.

    • @uiopuiop3472
      @uiopuiop3472 2 года назад

      my girlfrind is from t ype gsd

  • @SuperBrainAK
    @SuperBrainAK 2 года назад +30

    Cool! That is pretty impressive results from a bunch of basic capacitors! I think you should make a Marx Generator with your leftover ceramic capacitors! High voltage is fun!

    • @suvetum6763
      @suvetum6763 2 года назад +3

      Especially fun when it hits you man good times when I used to charge myself with high voltage because I couldnt sleep! Better than xannies!!

    • @garygranato9164
      @garygranato9164 2 года назад

      +1

  • @maxnomad1494
    @maxnomad1494 2 года назад +3

    Me: just went to bed
    RUclips: what can you make from 500 capasitors
    Me: please tell me more

  • @alberthofmann420
    @alberthofmann420 2 года назад

    You got such a big, generous and expensive gift from a viewer years ago and didn't make a video right away?!
    Oh boy, simply no words...

  • @ryanwakebradtelle8682
    @ryanwakebradtelle8682 2 года назад

    It's good u waited for the review that way u can say with confidence that this is a good product and no e of the components are less durable than they should be

  • @xiar5546
    @xiar5546 2 года назад +3

    Yea. That battery you showed is capable of 150 amps for around 5 mins. That’s a lot of current for a lot longer than a capacitor bank is capable of.

  • @shashankbj3804
    @shashankbj3804 2 года назад +1

    THIS man is insanely brave for trying this

  • @vincei4252
    @vincei4252 2 года назад +5

    What can you do with 500 caps? Marco Reps would plant them in a field and harvest a bumper crop the following year. Just saying.

  • @dtibor5903
    @dtibor5903 2 года назад +1

    You don't want really lot current for spot welding, above a certain value your probes and nickel band gets basically vaporized

  • @screen-protector
    @screen-protector Год назад

    470uF and 16V we use in a Half-Bridge inverters 12V to 230V and more if you gonna use pure sine on the output even with EGS002 ;). Electronoobs has this inverter in his YT channel, I'm building it now and have videos in general about it. Will be more as well.

  • @ianhosier4042
    @ianhosier4042 2 года назад +4

    How about blowing up 500 capacitors as that would be so much fun!

  • @d.jensen5153
    @d.jensen5153 2 года назад +3

    Very much looking forward to the video where you use the film capacitors for induction heating!

  • @LordPhobos6502
    @LordPhobos6502 2 года назад +4

    I noticed a large number of 7 segment displays....
    I also like 7 segment displays...
    Would love to see what you make with them ❤

    • @Flashy7
      @Flashy7 2 года назад

      Connect them parallel and make a large 7 segment display! Oh, wait, it does not work that way. But he can use them as pixels for a large screen, if you watch it from far enough, you can control the brightness by lighting more or less segments of a pixel.

  • @Sekhar_Home
    @Sekhar_Home 2 года назад +5

    I wonder how patient you have to solder all this 😀

    • @josephcrowley7635
      @josephcrowley7635 2 года назад +6

      Soldering for me is therapeutic

    • @davey2k12
      @davey2k12 2 года назад

      He didn't solder them someone else did lol

  • @Legofan2676
    @Legofan2676 2 года назад

    For that many caps and only to have 2 inserted with reverse polarity thats actually really amazing from i guess just assemblers viewpoint.

  • @NIMKAOriginal
    @NIMKAOriginal 2 года назад +1

    Очень удивился когда увидел на блоке питания AKA KASYAN, очень хороший английский у тебя)
    Даже не понял что ты русский))

  • @WarrenGarabrandt
    @WarrenGarabrandt 2 года назад

    That LiPo battery pack is not rated for current in "Celsius". C stands for the capacity of the battery. A current rating of 30C means it could output 30 times is capacity in current. That might sound like a word salad, so let's consider the example. The bettery you have is 5300 mAh (if I remember right), and was rated for 30C discharge current. If it were 1C, that means you can output 5.3 amps. If it were rated 10 C, it could output 53 amps. And 30C means it can output 159 amps. Usually these kinds of batteries have different ratings for discharge current and charge current. It may be able to discharge 30C but can probably only charge at 2C to maybe 5C.

  • @karbounay
    @karbounay 2 года назад

    i loved the way as you could made a perfectly project with big transistors it was so intelligent good job boy and good luck👏👏

  • @____________________________.x
    @____________________________.x 2 года назад +5

    Arranged in a hex format would give greater density

    • @preddy09
      @preddy09 2 года назад

      Why would anyone put themselves through the torture of parallelizing them when oriented in hex format, especially when space isn't an issue
      Edit: I supposed all he had to do is shift alternating lines such that the gap is gone....but still why do even that unless necessary

    • @____________________________.x
      @____________________________.x 2 года назад +7

      @@preddy09 it's just a bunch of 30 degree lines, so about the same effort? I only mention it as it's more elegant and maybe someone hasn't thought of doing that

  • @xierxu
    @xierxu 2 года назад +1

    Anyone else jealous this guy recieved a gift like this?

  • @Honyasu
    @Honyasu 2 года назад

    RUclips won't let me sleep by giving me this on my recommendation page in the middle of the night.

  • @bluegizmo1983
    @bluegizmo1983 2 года назад +24

    "capacity output of 30 Celsius" 🤣

    • @TheGoodMorty
      @TheGoodMorty 2 года назад +2

      thank goodness someone else caught it lol

    • @helimonster3
      @helimonster3 2 года назад +3

      Omg! I was scrolling for so long on the comments to see if anyone else noticed

    • @5iveflyer
      @5iveflyer 2 года назад +2

      "Current output of 30 Celsius" lol still funny tho. Didn't know we can now measure current directly with temp. It's actually the C rating meaning that battery can output 5.3Ax30 = 159 A

  • @Borishal
    @Borishal 2 года назад

    As a beginner in electronics, this was very helpful.

    • @urnoob5528
      @urnoob5528 Год назад +1

      as a beginner why do u have 500 capacitors

    • @Borishal
      @Borishal Год назад

      @@urnoob5528 I don't.

  • @userAndix
    @userAndix 2 года назад +1

    A charge pump would be also very intrresting but I am unsure if you would need bipolar capacitors

    • @scienceandmathHandle
      @scienceandmathHandle 2 года назад +2

      In most cases you would not(unless you expected ringing) as a charge pump always charges in the same direction, and discharges similarly. They effectively charge in parallel and discharge in series for a boost, or charge in series and discharge in parallel for a reduction. Its slightly different for a negative voltage charge pump but effectively its the same thing, just charging from positive to ground, and discharging from ground to negative. I've been thinking about charge pumps a lot lately lol!
      You could even make charge pumps with variable capacitance values to vary the voltage from fixed N multiplications and dividers to different value capacitors for finer voltage control up and down. Or vary different numbers of fixed values in series and parallel for different control schemes.
      But it will never be truly isolated as a lot of capacitors fail into shorts.... so transformers are still the way to go, in that regard.

  • @ZhangyXD
    @ZhangyXD 2 года назад +12

    25,000A? I don't think your current measurement is accurate... 3 of these FETs already have 0.6mOhm of ON resistance. Also these FETs can handle maybe maximum 4kA for 1ms.

    • @leonordin3052
      @leonordin3052 2 года назад +1

      The capacitors are 32 joules 16v,so 2 ampere in 1s,which is 2000a in 1 millisecond, 600a avarage in his three milliseconds of short circuit weld time.
      But I wonder if you got low resistance for example doing the weld directly from the capacitors with a large relay, if it would reach 25ka for lower than 0.1 milliseconds. But surely you can't spot weld with that even with high pressure the weld time is too short?

    • @Astri.electronics
      @Astri.electronics 2 года назад +3

      Same thought here, those small FETs would desaturate way before reaching few thousand Amps. Not the mention that at 16V, 25kA would mean a total resistance of 64µΩ, just his current shunt has a higher resistance. Maybe he setup his probe to x10 while it was on x1, common mistake. 2500A would be much more plausible but still quite a lot. I would expect something like few hundreds of Amps.

    • @christopherscholz
      @christopherscholz 2 года назад +1

      @@Astri.electronics I stead of a shunt a Rogowsky coil would be a better way to measure current. A CT7044 goes up to 6000 A up to 50 kHz

    • @Astri.electronics
      @Astri.electronics 2 года назад

      No doubt a current transformer would work better but that's not the point of this discussion.

  • @SuperBrainAK
    @SuperBrainAK 2 года назад +1

    oops 3:28 "output of 30 Celcius" haha should be 30 C, silly narrator! Gotta educate them! He does a good job regardless.

  • @enzoruberto
    @enzoruberto 2 года назад

    I would love to see the peak current measurement done at a higher sampling rate. The peak was not well formed in the single shot measurement, it’s hard to tell how high it actually might have gone

  • @kde5fan737
    @kde5fan737 2 года назад

    Just out of curiosity how did you connect the leads off the capacitor bus, was it on the same end for the + and the -? Meaning, if you have a row of 500 caps with a + bus on one side and the - bus on the other side, where did you put the terminal connections? On the same end of of the bus for both + & -?
    For example if the Left side of the bus starts with capacitor 1 & the far right side of the line /bus bars is capacitor 500 (and all caps are spanning the +&- bus bars), where are the terminal connections for the bus? Are they both on the same end, either near cap 1 or near cap 500? Or did you put it in the middle?
    I was told that for a large cap bank the best option to get the full working value of all the caps & to deal with any ESR resistance is to put a terminal (just for example) on either the + or - bus next to cap 1 & then the other terminal connection on the opposite bus next to cap 500, so you will have terminal connections on opposite sides of the capacitor line/bus. IDK exactly why, much more knowledgeable people in electronics agreed that my setup (of 80-100 caps) would be much more efficient this way & probably get much more power out of it (but they weren't all identical caps nor all new).
    I'd be interested to see if there is a difference if you have the connections at opposite ends of the bus b/c if they are connected on one side, you may only use the first 50 or 100 caps at full capacity over & over, where if the other way, (I was told at least), you will use the same total energy but it will be spread out over EVERY cap. I hope this makes sense.

    • @stargazer7644
      @stargazer7644 2 года назад

      You can clearly see in the video how everything is connected. He has 20 buss bars connecting the boards together. He has a pair of conductors going from each board (6 total) from the center of each buss to the welder. Two cables in the middle or one from each end will give you about the same results. Connecting them all at one end would be worse.

  • @idonotknowwhyyoutubeletsyo5893
    @idonotknowwhyyoutubeletsyo5893 2 года назад

    When I saw this in my recommended section I thought it would be a 500 bit memory cube. But a cursed battery welding station is also an option.

  • @d.t.4523
    @d.t.4523 2 года назад

    Cool. Good luck. 👍

  • @CronaTheAwper
    @CronaTheAwper 2 года назад

    0:30 Optosymistors? What is that?

  • @axelbelleris
    @axelbelleris 2 года назад +1

    I watching you from the ass of de world (Argentina - Latinoamérica) while drying my tiers because here we not have economic liberty to import electronics components as you have in the first world. 😭 And we have a lot of inflation, bureaucracy, interventionism, corruption. Yes, that's how are the things her in Argenzuela, The Peronistán Republic, LeftLand. 🇦🇷

    • @kde5fan737
      @kde5fan737 2 года назад +1

      Sorry to hear about that. How bad is it down there? here in the US prices are getting bad (highest gas we've EVER seen by 20-30%, even counting for inflation), inflation is over 9% ("official numbers" but real economists say it is more accurately 20-30% depending on state/area). Even here stuff is hard to find at times. 18 month wait for some new cars (not exotics - normal cars!!)!? Over a year for a set of tires (specific ones mind you). Some stuff is 300-600% higher than it was in Jan 2020 if it's even available. There are a lot of people hoarding - people who can still buy at old contracted prices (pre "plandemic") and then sell little by little for huge profits. There's some stuff that used to be ~1-2 cents each & were selling for 15-30 cents b/c people needed/wanted them (usually sold 1000 or 5000 at a time).
      Then there's the jobs & minimum wage which is still the same ($7.55/hr federally). Many employers haven't increased pay at all during this even though they can't find workers.
      So dry your tiers (tears btw, lol), its not very great elsewhere either.... Oh and have you seen our crime rates!? some places have had 200-300% increase over last 2 years in violent crimes. some cities are the most violent in the world. Yeah, "first world" you call us. Well SOME of use here are...

  • @BurkenProductions
    @BurkenProductions 2 года назад +7

    A battery with a current output of 30 Celsius???!! What are you blabbing about there lol

    • @ketas
      @ketas 2 года назад

      i come down here for it. i mean it's a c but not celsius. but i'm unsure how to properly shorten the discharge rate notion

    • @signalworks
      @signalworks 2 года назад +2

      C is the ratio of discharge current to capacity. It would have unit of ampere to amp hour. A 3 Ah battery rated at 10 C can be discharged at 30 A. Conventionally, fast charging is usually 1 C and slow charging generally happen at 0.1 C.

  • @markhonea2461
    @markhonea2461 2 года назад +1

    I recently salvaged 8 80, 000 microfarad, 20 volt capacitors. I thought, "wow, nearly half a farad!". They were threaded posts on top and I connected them in parallel with 10 gauge wire with factory eye rings and bolts.
    I don't know what to do with it.

    • @oliverer3
      @oliverer3 2 года назад

      Spot welder or maybe something with a pulsed laser?

  • @zaprodk
    @zaprodk 2 года назад +1

    The LiPo battery has a current output of 30 Celsius? How does that work?

    • @ac281201
      @ac281201 2 года назад +2

      The video was probably poorly translated. It was about C rating of a battery. In this case a 30C battery with capacity of 5300mAh can output a maximum current of 159 amps (30C * 5.3Ah)

  • @scienceandmathHandle
    @scienceandmathHandle 2 года назад

    hmmm... Nice video. Suppose that someone worked with a capacitor manufacturer and had access to tens of thousands if not hundreds of thousands of C0G power conversion MLCCs with voltages in the 200V to 15,000V range. What would be the most optimum setup to try something similar with a large bank in terms of peak current? Obviously the power density would be quite a bit lower but the resistance would be too. I am guessing that minimizing the path length to the electrodes would also be massively important to take advantage of the lower internal resistance. Also ringing would be an option for a larger integration time in terms of welding over polarized caps. Just curious... for a friend.

    • @inse001
      @inse001 2 года назад

      Using a giant amount of components would lead to other disadvantages. The track resistance and inductance would limit the current delivery. Also you would have to inustrially assemble those banks. And how would you repair it in case one of the MLCCs fails shorted, which they sometimes do?

  • @DAVIDGREGORYKERR
    @DAVIDGREGORYKERR 2 года назад +2

    If you had 30 of those German high voltage electrolytic capacitors it might have other uses.

  • @Karl_Kampfwagen
    @Karl_Kampfwagen 2 года назад

    See?! I KNEW there was a potential use for a fairly massive bank of small capacitors... Or you can make an electric eel suit. 😉

  • @vuaeco
    @vuaeco 2 года назад

    We're having a chip shortage and here you go, having tons of chips. Sell them now and you can make millions.

  • @leonordin3052
    @leonordin3052 2 года назад +1

    Thank you over the moonz, this is exactly what I needed, I'm so grateful

  • @lamakill
    @lamakill 2 года назад

    Could you make a car jump starter using those ?

  • @thelespauldude3283
    @thelespauldude3283 2 года назад

    The funniest thing to do with a lot of capacitors is putting them in series and plugging them into the wall😂

  • @hemantech...4423
    @hemantech...4423 2 года назад +1

    Ooooo ......lot of components....lucky you are

  • @xavermaier9625
    @xavermaier9625 2 года назад +4

    Pro tip: Put the capacitor-stack with the breadboard side pointing downwards on a metal shelve
    Seriously, dont do this, the lightning is really impressive and dangerous

    • @urnoob5528
      @urnoob5528 Год назад +1

      the fuck u mean lightning

  • @kalashnikov_47z
    @kalashnikov_47z 2 года назад +1

    Amazing video as always ❤️
    Using this in audio amplifier will be awesome

  • @jacobtrapp3772
    @jacobtrapp3772 2 года назад

    "But this is nothing" is how I think this dude feels about this whole project lol I'm just halfway through the video thinking 'this thing can kill a man... I must make one now."

  • @ke1vin
    @ke1vin 2 года назад

    Idk why everyone complains about the RUclips algorithm. This is exactly the random shit I want to watch

  • @SandroMancino
    @SandroMancino 2 года назад

    How about a bucket brigade analog audio delay?

  • @h7qvi
    @h7qvi 2 года назад +5

    With enough diodes, could make a x500 concroft walton voltage multiplier

    • @Basement-Science
      @Basement-Science 2 года назад +2

      That would literally take an hour or so to charge up just once, and it's just 4kV at most at no sustained current. Would be completely impractical unless you ran it at many kHz, and even then it's pretty pointless.

    • @zaprodk
      @zaprodk 2 года назад

      *Cockcroft

  • @danielbrunner8312
    @danielbrunner8312 2 года назад +1

    With a current output of 30 Celsius? Nice

    • @JMMC1005
      @JMMC1005 2 года назад

      I got a giggle out of this.

  • @ripy3422
    @ripy3422 2 года назад

    A small landfill?

  • @FennecTECH
    @FennecTECH 2 года назад

    Caps can deliver terrifying ammounts of current.

  • @madjoemak
    @madjoemak 2 года назад

    So no big explosion at the end of the video?

  • @lunes-1
    @lunes-1 2 года назад +1

    An attomic bomb?
    🤤

  • @jvon3885
    @jvon3885 2 года назад

    Why can't I get a package like this?

  • @ChrisHalden007
    @ChrisHalden007 2 года назад

    Nice video. Thanks

  • @maheen-
    @maheen- 2 года назад

    3:28 Eternal Resistance... Lol

  • @derrekvanee4567
    @derrekvanee4567 2 года назад +1

    I think you and thst brit that does tjkngs with like power switching ststion equipment blowing the 5000A fuse or whatever it was woild be best friends.

  • @JeffJennings82
    @JeffJennings82 2 года назад

    Soldering wasn't too bad due to PCB layout

  • @blamejohnath
    @blamejohnath 2 года назад

    Ultimate device killer

  • @mrpavel8288
    @mrpavel8288 2 года назад

    I can already hear ElectroBoom saying "let's plug it in"

  • @sk3tchimdg3t33
    @sk3tchimdg3t33 2 года назад

    Pain?

  • @piconano
    @piconano 2 года назад

    I upgraded my moped's 20Ah 48V SLA battery to LiFePO4, and have 6x 20Ah almost new, that I bought last year and in good shape.
    Can I use them to arc weld using a jumper cable and 6013 welding sticks? Spot welding is nice, but I have no use for it.
    If I put them all in parallel, How do I limit the current to 100A~120A ?

  • @MichaelVx
    @MichaelVx 2 года назад

    nice idea

  • @NuggStudio
    @NuggStudio 2 года назад

    You can make some fire crackers with 600v

  • @ProtoHadron
    @ProtoHadron 2 года назад

    you can make a railgun with the 500 caps

  • @THESILeNCEmixmixmix
    @THESILeNCEmixmixmix 2 года назад

    yooooooooooooooo MAKE A LAZER WITH THIS....

    • @THESILeNCEmixmixmix
      @THESILeNCEmixmixmix 2 года назад

      can buy the left overs..... for a lazer i was gonna make?

  • @kylerkidd4834
    @kylerkidd4834 2 года назад

    It takes guts to weld an 18650 with something like that

  • @tobinshaji59
    @tobinshaji59 2 года назад +1

    Good presentation

  • @luiscarlosmarques3946
    @luiscarlosmarques3946 2 года назад +1

    Good use !

  • @VIPINSAINI_20
    @VIPINSAINI_20 2 года назад

    Link for black and white toner transfer method pdf files for capacitor bank pcb layout

  • @specialistka1
    @specialistka1 2 года назад

    Оу, ес ес хай май фрэнд

  • @alexcorvis1379
    @alexcorvis1379 2 года назад

    хитреееец :)

  • @james10739
    @james10739 2 года назад

    I know English is not your first language but when you say the battery can output 30 Celsius makes you sound like you have no clue what you are talking about it's 30c I assume c stands for capacity it can put out 30 times the amp hour rating in current so a 1ah battery rated for 30c can put out 30 amps or your 5300mah is rated for 159 amps

  • @tim_timonya
    @tim_timonya 2 года назад +1

    Артур, в топ!!!!

  • @CryptoTonight9393
    @CryptoTonight9393 2 года назад

    What can be made from 500 capacitors? Nothing safe!

  • @CraftyZA
    @CraftyZA 2 года назад

    I would be very tempted to use that cap bank for building an EMP generator

  • @kostasantoniadis5451
    @kostasantoniadis5451 2 года назад

    You can ask electroboom!

  • @TestEric
    @TestEric 2 года назад

    awesome

  • @HandFromCoffin
    @HandFromCoffin 2 года назад

    1 sec into video.. My first thought is.. I don't know.. something dangerous.

  • @ИгорьГуляев-ж1у
    @ИгорьГуляев-ж1у 2 года назад

    КасьянАКА? Это Ты??

    • @ИгорьГуляев-ж1у
      @ИгорьГуляев-ж1у 2 года назад

      Да! Это Ты! Я видел этот видос! Еее молодец, прям как иностранец!

  • @Jkauppa
    @Jkauppa 2 года назад

    railgun single shot capacitor bank

    • @Jkauppa
      @Jkauppa 2 года назад

      tunsgten superhot wire metal cutter, not only foam cutter

    • @Jkauppa
      @Jkauppa 2 года назад

      flywheel battery storage generator is fast output

  • @davey2k12
    @davey2k12 Год назад

    Makes me sick how much components 😔😢😥

  • @warifaifai
    @warifaifai 2 года назад

    16 and 25 wolves

  • @Nicekoo23
    @Nicekoo23 2 года назад

    nothing can be made if you don't know how to use it
    im not talking about the person who created the video

  • @cgamer8938
    @cgamer8938 2 года назад +1

    500 dead beetles

  • @uhohwhy
    @uhohwhy 2 года назад +1

    Fortnite battlepass, i just shit, out my ass0

  • @Flumphinator
    @Flumphinator 2 года назад

    24,000 amps!!!

  • @gustavgnoettgen
    @gustavgnoettgen 2 года назад

    Multi million volt Marx generator and similar circuits

  • @theonewhowas7709
    @theonewhowas7709 2 года назад

    sooooo much solder lol

  • @yunka_uzumymw
    @yunka_uzumymw 2 года назад

    United States, seriously?) maybe to speak out about what is happening, and not silently support. I won’t be surprised if you are on Zen.

  • @jacobwcrosby
    @jacobwcrosby 2 года назад

    30 Celsius... 🤣🤣🤣
    Definitely not a reliable source for facts if he doesn't know Celsius from 'C'. 🤦

  • @daveogarf
    @daveogarf 2 года назад

    What's a "WOLT"?

  • @suryamoorthy9392
    @suryamoorthy9392 2 года назад

    capacitor biryani

  • @petermeshackjobs8076
    @petermeshackjobs8076 2 года назад

    treasure trove

  • @sr.maxwell6808
    @sr.maxwell6808 2 года назад

    wow

  • @shorty48shorty
    @shorty48shorty 2 года назад

    dang i didnt know polymer batteries put out celcius! thats so cool! all i can say is.... get rid of this speaker, hes terrible has no understanding of the script, bring the lady back. this is so misleading to people who want to learn.!