Cheap Ebay 18650 Li-ion batteries (test and autopsy)

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Today I tested another 2 dirt cheap 18650 size Li-ion cells from Ebay, donated to me by a viewer (thanks!!!). This test includes capacity measurement using my DIY battery analyzer and, of course, an autopsy. Can those super cheap batteries be real, or just another fakes?
List of all 18650 Li-ion cells I've tested:
danyk.cz/test18650_en.html
My DIY battery analyzer:
danyk.cz/avr_aku_en.html
You can support me on Patreon:
/ diodegonewild
My Instagram:
/ savage_danyk

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Опубликовано:

3 дек 2018

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Комментарии : 372

@martinda7446 5 лет назад

In my favourite top3 You Tubers. (Esp. after looking at his clocks and his cat) - and with so much that made me laugh. DiodeGW is certainly a force among the best of the electronic engineers here on YT. Make no mistake - he has an excellent foundation of knowledge and experience that he shares with great style, quality and humor. Brilliant. I have written a few praising comments recently. I think the effort and time involved and the generosity of the content makers in bringing this new form of media to life, is quite a remarkable thing - thanks to people like DiodeGW. Respect from Martin, a fellow engineer.

@nutzboi 5 лет назад

My favourite Electrical Engineer on YT is Mehdi Sadaghdar (ElectroBOOM) and I only like DiodeGoneWild because of his accent (If he didn't have that accent I wouldn't watch him lol)

@martinda7446 5 лет назад

@@nutzboi ElectroBOOM is great, but DiodeGoneWild is not a low voltage version, he is high voltage. He has more electronics experience/knowledge than ElectroBOOM, though Mehdi is a serious physics genius. All round, yes he is amazing. The unibrow .

@michaelfisher9671 4 года назад

I enjoy Mehdi’s videos but he tries too hard to be a clown. DGW’s understated humour is just as funny and is more to my taste.

@Clancydaenlightened 4 года назад

@Diodegonewild has been around waay before RU-vid took off, he has his own website danyk.cz, which I used alot when I got into electronics around '05-'06, when I became interested in hv power supplies and Tesla coils....analog electronics (I've kinda moved to digital electronics), jmartis2, and Steve ward also have gotten my respects...... also check 4hv.org, Tbh i first though his accent was Indian 😂, because of him rolling his letters so much, then I found out he was danyk.cz

@synx7874 2 года назад

To add, his hate for garbage chinese "products".

@Asu01 5 лет назад

The problem with unknown "recycled" cell is that you don't know what happened before. Often they were overdischarged, meaning they've build copper shunt inside the cell leading to internal short circuit and explosion. I discovered this, the hard way. Some of them also don't hold full charge for long and they definitely have much less capacity than before.

@YoDay 5 лет назад

@@esecallum Yes you can

@tirtagttech512 5 лет назад

Ese Callum reported 😡,can you speak without that words -_-

@ItsJustMeMusic 5 лет назад

TIRTAGT TECH reported! Don’t get butthurt by a joke.

@sfp4197 5 лет назад

China

@goamarty 5 лет назад

@@tirtagttech512 Why should he avoid talking about sex? Of course he can if he has a suitable dildo, although vibrators rarely use 18650 cells.

@rolandklein8260 5 лет назад

2014 refers to the year of a Chinese standard. When you read something like GB xxxxx-yyyy it's a 国标 guobiao standard.

@oldmanhuppiedos 5 лет назад

I think the cat also has an electrical history, but it is an asset in your vlogs. So it is obvious that people like to light you up. A clear vlog about the batteries.

@derektodd4126 5 лет назад

Thanks for the reply, lots of requests for a video on this piece of equipment. Best wishes from Northern Ireland.

@tracibeacer670 5 лет назад

I subscibed as soon as he said 'bloody hell'...

$@frac$

@frac 5 лет назад

Now put them back together and show they still work.

@the_danksmith134 5 лет назад

1 Day ago WTF!!! Oh wait you are a Patron...now makes sense.....

@zolatanaffa87 5 лет назад

@Fracture: D.G.W. told me (i'm a super-patreon) that he is still attending the applied magic course, as soon as he graduates he will try to rebuild the batteries and regenerate them at twice their original capacity! hahaha :-) :-) :-)

@BillAnt 5 лет назад

Or just sprinkle it in your coffee, makes a great creamer. xD

@petrpischnoth4919 5 лет назад

Ta výslovnost je unikátní!! 😁

@RegiPavan 5 лет назад

As always very entertaining and helpful video! Keep them coming please...

@tw11tube 5 лет назад

The liquid in the battery is the electrolyte. It is needed for the battery to work. It doesn't need to flow out like in the green battery, but the whole system must feel moist. The low performance of the yellow battery is most likely (partly?) due to loss of electrolyte. If you rapidly charge or discharge the battery, it gets hot, which increases the pressure in the cell, and some electrolyte might vent off through the safety pressure release in the positive contact. Also the seal can go bad over time, causing electrolyte to diffuse out even if there is no overpressure in the cell.

@worroSfOretsevraH 5 лет назад

You should make a teardown video on some RC batteries. Would be very interesting to see how they differ physically from normal Li-ion/polymer batteries.

@DryLog420 5 лет назад

Diode! I need you to post a video about this homemade battery capacity tester, and also your homemade watt meter power-bar. It's been forever that I've been meaning to ask. PLEASE PLEASE PLEASE Thanks dude love the videos!

@vaclavtrpisovsky 5 лет назад

If you're fine with text and pictures, see his blog: danyk.cz/avr_aku_en.html danyk.cz/wmetr_en.html He's planning to do a video on these sometime, I think.

@DryLog420 5 лет назад

@@vaclavtrpisovsky I will now be stuck on his blog for at least 24 hours. Thanks so much man I've always wondered about these "dangeroooos" devices he has created. Thanks again bud! Much appreciated!

@DiodeGoneWild 5 лет назад

They are on my website :). Somebody above me already sent the links. Maybe I will also make a video about them one day....

@DryLog420 5 лет назад

@@DiodeGoneWild please do! I wasn't aware of your blog. Lots of very fine projects on there! Keep it up Diode I get a lot of inspiration from your teardowns and reverse engineering. Only you and BigClive make such good reverse engineering videos! Cheers from Canada!

@jagardina 5 лет назад

Good video. I'm starting to dabble in solar and battery tech as a hobby. Will build some battery bundles from lithium cells. Knowing how to spot fakes and used batteries is key. The price variance is huge. As such, a cheap, low capacity, but solid cell might be more economical, maybe? Will do some math after taking some samples. I bought a programmable load that will measure a battery's capacity automatically. Thanks.

@davissoftware 5 лет назад

I really enjoy those Lithium Battery vids

@CoolKoon 5 лет назад

Wow, this is quite an informative video! I didn't know about these tricks employed by the "remanufacturers" before nor did I know the difference between fake batteries (I thought that all of them are just hollower on the inside and that's it). Diky :)

@chelarestelar 5 лет назад

seeing videos like this one makes me feel so lucky about having found a 3s3p 18650 laptop battery made out of samsung's pink 2.6Ah cells fo 14€. they seemed legit because even it wasn't a very scientific test (i even didn't plan to test it) i used a 10W led and it lasted about what it should have.

@-AlexMil- 5 лет назад

Finally THE CAT is BACK! :)

@Elaphae 5 лет назад

Your battery videos are very educational. The cat more than makes up for minor focus issues.

@EmmittBrownBTTF1 5 лет назад

10:03 Grumpy Kat gets tired of helping, abandons paper weight duty. Informative. The liquid is the electrolyte, the copper and aluminium are current collectors. They are lithium ion cells, just short of active material or old.

@viveksoley 5 лет назад

I did similar autopsy with one of an old Chinese mobile phone battery. Similar copper and black strips came out of the dissection. And it went hot too, but it very densly packed..

@Legitpenguins99 4 года назад

Your accent is incredibly strong but surprisingly clear and understandable

@dodecamethylcyclohexasilane 5 лет назад

Seldom have I seen such an entertaining yet educational video! But I really wouldn't touch that stuff with bare hands, especially not the solvent.

@tinkmarshino 5 лет назад

very interesting... I must go and check out some of your other vids..

@YTDeepshock 4 года назад

Czenglish vs Chinglish. Thanks for yet another of many informative videos! Love your channel.

@hatsunemiku838 5 лет назад

Thank you for this very entertaining video! Favorite part is when you said you steal nail polish remover from girls. Acetone is the main ingredient in nail polish remover usually. Also next time don't forget to use a fire containment dish.

@martinmuldoon603 4 года назад

looks like a dangerous way to dismantle a battery without an real effort to avoid short circuit. He could have at least used non conductive tools, I think he did discharged batteries first. Don't Try this at home if you enjoy your eye sight and general health.

@vitcenek8611 5 лет назад

Tohle je přesně věc, u které se vyplatí si připlatit a nekupovat nějaké, skoro mrtvé, jinak 18650 jsou super akumulátory, které vynikají svou univerzálností a velikou kapacitou (pokud jsou nové) Díky za video, dávám ODBĚR A ZVONEČEK :-)

@dennis8196 4 года назад

I had to subscribe after seeing that battery analyser. How can I not subscribe!

@atmel9077 5 лет назад

In addition to losing their capacity, cheap batteries increase their internal resistance when they wear out. This can be a problem when high currents are pulled from them.

@homehobbies8528 4 года назад

loved the fire extinguisher beertle

@massimob1972 5 лет назад

Thanks. Your video are always appreciated.

@BlackWolf42- 5 лет назад

Can you also measure the cell's internal resistance? The old cells - their Internal Resistance shoots up and they won't provide current.

@capzzikcz8616 5 лет назад

Make video about your baterry analyser

@vaclavtrpisovsky 5 лет назад

He made it himself. See his blog danyk.cz/avr_aku_en.html

@DiodeGoneWild 5 лет назад

It's on my website: danyk.cz/avr_aku_en.html A video about it may also come one day... And I believe that my one is better than ZB2L3 because my one has a programmable current, and the current is constant during the discharge. ZB2L3 seems to have just an external resistor you can swap. The current declines as the battery discharges.

@ItsJustMeMusic 5 лет назад

DiodeGoneWild do a video about how to make one and not just a text instructions.

@gamingisinmydna411 5 лет назад

Your cat is really cute

@BomJimmy 3 года назад

Ultrafire are very low in actual amp hours. Most othe sellers sell refurbished pullout by using a new sleeves ( heavier ones) and works long and good too. But the length increases due to added cap tip at positive and may not fit easily in many products.

@mpk5959 5 лет назад

Love your cat, love your fire extinguisher, shame to waste it on a real fire though

@TheRealThisIsAlex 5 лет назад

Diode, Can you make a video about switching mode power supplies again? I'm getting a 12V 2A one.

@derektodd4126 5 лет назад

Love the way your battery analyser says "En" to start discharge cycle. I think thats "Engage, Captain Picard of the Enterprise "

@DiodeGoneWild 5 лет назад

Actually, En means Energy :). The next screen after voltage measurenemt is energy measurement (energy in watthours). When I long press the mode button to activate the discharge, the meter prepares to show the energy value, but then it realizes that a long press of the button is what happened, and it goes back to voltage display. But En could also mean something like "discharge Enabled", so I left the program this way :).

@SigEpBlue 5 лет назад

Leave beer with cat. Kitty will put out fire in case of trouble, no problem. :)

@kamelal-bellihy4713 5 лет назад

we need a video about car headlight LED (COB vs CSP, ....) and the actual wattage and luminous, mostly from Ali-express sellers .. i am sure several of them are fake, but i trust your judgment, . please make a video about this, it's a hot topic nowadays. . . . .

@Mark1024MAK 5 лет назад

Kamel Al-bellihy - unless the replacement lamp is from a vehicle manufacturer or reputable dealer / vehicle parts manufacturer, then if it is fitted in a vehicle, it is likely that the vehicle will no longer comply with the relevant standards or laws.

@kamelal-bellihy4713 5 лет назад

@@Mark1024MAK thanks for your reply, the point you mentioned may be a problem in some countries, but not where I live lol :D

@kamelal-bellihy4713 5 лет назад

@@Mark1024MAK there are who drive there cars without even a number plate hahaha :D

@Kamelsay 5 лет назад

we'd like to see that, please

@prakashchandrabehera6437 5 лет назад

Plz make a video of captcha fitness and health band you get it on Amazon .plz told me what are the disadvantages of it.

@williama29 5 лет назад

All new from Diode gone wild lithium batteries Good job on pronouncing it how do you stay safe in doing that ?

@hackeritalics 5 лет назад

He doesn't. 😂 I was waiting for the cathode material to go on fire... Probably big clive does it safe ish, but this was kind if scarey. Lol

@eddyfontaineyoutu100 5 лет назад

Good investigation ! 👍👍👍 !

@WinningOnline 4 года назад

Hard to believe we are seeing this before our eyes,- old batteries being sold as new :(

@em0_tion 3 года назад

No reputable brand, no model, brand new 18650 Li-Ion battery for just $1.30 and you find it hard to believe? 🤷‍♂️ Do you still believe in Santa Claus? 😂

@UBsLab 5 лет назад

That cute cat !!

@OfficialItsJebrael 5 лет назад

Pls do more I will support you always😇😇😇

@thanaputthapipat6068 5 лет назад

Where to buy your fire extinguisher..???? love it...!!!!

@websitesthatneedanem 5 лет назад

Hey! where have you been?! .... we missed the cat! 😉

@bryanshoemaker6120 4 года назад

lmao! good fire extinguisher. you got another subscriber now :-)

@guerrillaradio9953 5 лет назад

You know, I love to test all 18650's too. There are a couple other guys who do it as well. We should start a website with videos (I am hoping to get a video camera for christmas) with load testing of every brand/color we can find. Then, make a database where people can see for themselves. I would be willing to put in the work, let me know. Then, scammers will be held accountable right away, good mid-price batteries will sell well, and batteries will get better, faster!

@MrChickenPicker 5 лет назад

Is there a video of how you made that battery tester? If not, can you make one?

@TheSpotify95 3 года назад

So the reason why the 1800mAh one was so poor (1100mAh) was because it was specifically made/designed to be low capacity, there was not enough material inside to be of decent quality or capacity. The inside was hollow... And the reason why the 2400mAh battery performed so badly was because it was a recycled cell, probably from e-waste, where they take the battery pack, disassemble it for the 18650s, and then they just re-wrap it, shove new contacts on, and sell it to you. Under those circumstances it really is pot luck as to what capacity you will get (the previous UltraFire recycled cell was 1500mAh).

@spotzgeil 5 лет назад

with bare hands... what a man!

@carlnikolov 5 лет назад

Looks like a crazy party!

@bostjantrancar9605 5 лет назад

I like your fire extinguisher....👍

@deepakraut1467 5 лет назад

Very good. Knowledge you shareing

@kaydewinter3588 5 лет назад

wow , thankyou for that,i had no idea

@stephanc7192 5 лет назад

Dear Sir I hope a can call on your expertise! I have a Boston Acoustics Subwoofer ASW 650 with a faulty power supply. The service manual shows a transformer based power supply, but the one with the unit is a switch mode power supply! Does anybody have a circuit diagram for the Smps? Thank you in advance. Kind regards

@electronic7979 5 лет назад

Useful video 👍 very nice

@chrislitmen 5 лет назад

Hi I recently purchased a 18650 2500 mah battery I charged them with my newi2 nitecore charger and used it In my vape but before u can use it I can see 20% battery has already been drained and plus it heats my vape mod I use armour Pro mod. Is it normal for a new batteries to act like this or are they clone batteries.

@fatih3194 3 года назад

hey you are discharging it to 3 v but i want to know . is your device measures voltage of battery when its loaded or is it just cuts discharge and measures it to see if it is 3 volts thank you

@wisher21uk 5 лет назад

I was waiting for a big Clive moment lol

@saah311 4 года назад

I have a lion battery that charges normally but the second I stop charging the voltage drop by 1 volt every second to about 1-1.5 volts may I know the problem? And what is the fix?

@justinv3080 5 лет назад

On the worn out cell the yellow one you should have unwrapped it and checked for manufacturer markings to see what it was originally maybe could have been a used Samsung, LG or Sanyo

@smartdetergent9757 5 лет назад

Hello, can u make softstart using Resistor chalk. 20w47r?

@user-cr5ek8ot6o 5 лет назад

Good work . thanks

@channelsixtysix066 2 года назад

Useful copper foil for repairing tracks on circuit boards.

@youvashekel6509 5 лет назад

Heheh. When you say i don’t know, I am dying from laughing 😂😂😂😂😂. Cheers from, Europe.

@uzaiyaro 5 лет назад

I wonder if the reason for the loads of electrolyte was to compensate for the rolls not being densely paced together.

@DiodeGoneWild 5 лет назад

The rolls may be hand-rolled by poorly paid starving workers in China. Then it, of course, needs more electrolyte. The layers are not pressed together enough. There's also a lot of empty space, so the roll can loosen over time or because of the shipping vibrations.

@LMB222 4 года назад

My new favourite Czech film.

@34Gw 5 лет назад

I love your cat!!!😍

@hassanlebbe5436 5 лет назад

i suggest to make videos about cheap bleutooth speakers

@meisse1 5 лет назад

great Job sir

@TheSpotify95 3 года назад

8:27 Aw, look at that, the cat is sniffing the fire extinguisher! Maybe they want it instead (assuming that it isn't needed to put out one of the Li-Ion cells if it goes in flames).

@mytube7473 5 лет назад

"i sometimes steal nail polish remover from girls" holly kek hahaha

@ejon 4 года назад

@DiodeGoneWild, Where can I buy a battery analyzer like yours?

@srs2388 4 года назад

I hate the button top ones. I've came across some horrible batteries like these. It would show a full charge on my vape, but when pressing the fire button, it would say "Low power".

@ankanpradhan9724 Год назад

13:17 he was lucky enough because his hands were completely dry otherwise it would have burned him to hell....

@CH-py8zv 4 года назад

I use a lot of these used batteries in flash lights and they work fine. I charge these cell's on a slow charge no problem.

@jaa93997 5 лет назад

Do not re-borsch 🍲 polarity!

@marekant7776 5 лет назад

I actually don't know anything about battery construction, may I ask is this copper layer supposed to be there?

@therealjammit 5 лет назад

Yes. It's part of one of the electrical contacts.

@marekant7776 5 лет назад

Jammit Timmaj thanks. I'm asking because it looks pretty incostistent

@jp4163 5 лет назад

Nice cat!!!! How many batteries does it use?

@techtube9080 5 лет назад

Check out the duracell powerchek battery

@alexfilippidis 4 года назад

Great vid! Anyone know a trustworthy place to get some hundreds of 18650 in Europe in a proper price? Any ideas? Tired to see all the americans with their bulk offers but in Europe nada...

@nightfire9748 5 лет назад

At least these are not stupid disclaimer like 1.000.000 mah at 300.000 amp at least these are very reasonable

@DiodeGoneWild 5 лет назад

The realistic capacity rating makes those fakes and recycled cells harder to identify, unfortunately. They should stick to 9900mAh ratigns :D.

@nightfire9748 5 лет назад

@@DiodeGoneWild very true fakes just make it harder and harder to find real 18650 these days when will china and others learn that you can't get stupid ratings in one cell

@gamesnic 5 лет назад

@@nightfire9748 Buy from trusted shops.

@Catrik 5 лет назад

Yeah and the wrapping looked authentic, even had a web address. Would have been nice to see the website reviewed, is it actually an actual website with more fake information or just a 404

@station240 5 лет назад

lol yeah, there was a 30,000mAh powerbank somewhere. a 30Ah lithium cell is the size and weight of several house bricks, totally not believable.

@t0nito 5 лет назад

Not trying to be mean but why do you make that weird inflection at the end of each sentence?

@wavecreatures 5 лет назад

A braver man than me!

@RikerRC 5 лет назад

Shit, I got a cancer from just looking at how you take the battery apart with your bare hands ;). I love your content but at please, for the future keep at least minimum safety - gloves would be appropriate :)

@alexandrebaux4042 5 лет назад

RikerRC How did you post this 20 hours before the videos was posted?

@sebastianfischer429 5 лет назад

@@alexandrebaux4042 Patreon has special permission.

@robozstarrr8930 5 лет назад

... disappointed there wasn't a taste test . . . ∠( ᐛ 」∠)＿

@DiodeGoneWild 5 лет назад

Ok, I will buy some gloves for the next autopsies ;).

@DiodeGoneWild 5 лет назад

I've already seen a description of a leaking battery taste somewhere ...

@FaysalKhalashi 5 лет назад

DiodeGoneWild gone wild today 😐 Disassemble lithium battery with bare hand, touching those liquid acid probably 😬 and he didn't get cut or burned any finger.. 😲😬 I cut and burned my hand many times this way... 😑😭

@vampy625 5 лет назад

yea he is savage just like ElectroBOOM

@beedslolkuntus2070 5 лет назад

Xee Gaming 😂😂😂😂 electro boom

@beedslolkuntus2070 5 лет назад

Xee Gaming I know that channel and the mehdi guy..

@superdau 5 лет назад

The chemicals in a Li ion battery are quite harmless. The liquid is an organic solvent (about as dangerous as acetone and the thing that actually burns - the lithium is irrelevant for li ion battery fires). Dissolved in it are Li salts, can be acidic in certain circumstances, but is not really an issue. The only danger is fire, because it burns your house down. Also you can get HF in a fire, because one of the often used lithium salts also contains fluorine. So have plenty of water ready and you are fine.

@superdau 5 лет назад

@Против Глобал Hydrogen fluoride. Which together with water/humidity forms hydrofluoric acid. One of the really "not nice" chemicals. So yeah, don't breath the smoke.

@BillAnt 5 лет назад

The moral of this video, is don't buy cheap bargain basement batteries, you'll pay for it twice due to their lack of power/defect, or worse yet they leak or puff up and burns your equipment. Also, only buy from well known reputable sellers. By the way, AliExpress, BangGood, etc are NOT sellers themselves (they are just online portals for sellers) so you must search for good seller on those websites, or better yet use Ebay or Amazon. ;D

@JamesBrown-ux9ds 4 года назад

You missed to measure the length and the surface of this piecees of 'copperpaper'. Also their individuell weights would have been interesting. Maybe you should consider to repeat this test in some future. Maybe we find out even more and new things today. And they say, that lots of different prescious metalls are in this copperblend. Maybe it's as well possible to measure and calculate the specific weight. We know the surface, so we only have to measure the thickness as well properly. Maybe it would be of some interest anyway to know the thickness of all such samples, they may not all be the same?

@ntnsonwale4381 5 лет назад

I want to make battery pack for motorcycle . Could you suggest me best lithium ion 18650 cell please .

@commonmogoreanu7135 5 лет назад

You need Lifepo4, check you m.ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-dSLBwDIx_pU.html

@HDXFH 5 лет назад

Cat loves the beer

@r0_ 5 лет назад

can you make a tutorial of the battery capacity meter

@DiodeGoneWild 5 лет назад

It's on my website: danyk.cz/avr_aku_en.html But maybe one day I will also make a video about it...

@erikziak1249 5 лет назад

Práve rozoberám baterky z HP notebookov a už mám vyše 100 článkov Samsung ICR 18650-28A. Kapacita je od 2000 do 2500 mAh, podľa kusu. Väčšina je okolo 2350 mAh Zaujímavé je, že tieto články sú stavané na nabíjacie napätie 4,3 V, ale ja ich testujem iba v rozsahu 4,2 - 2,8, takže ani nevyužijem max. potenciál týchto článkov. V praxi ich chcem nabíjať do 4,2 V a vybíjať do 3,0 V. To by mi mohlo dať kapacitu okolo 2300 mAh. Dúfam... Uvažujem spraviť si 10S10P battery pack pre bicykel. Maximálny trvalý odber by bol 7 A, takže 700 mAh na článok, čo zvládajú bez prehrievania (vyskúšané).

@CoolKoon 5 лет назад

Kombinovanie clankov z roznych NB baterii=clanky roznych vekov, ja ti nevim, Karle....Viem, ze je to takto lacne, ale rozdiely vnutornych odporov mozu porobit znacne problemy....

@erikziak1249 5 лет назад

Áno máš pravdu. Vyberám však iba články jednotného typu a podobnom počte cyklov a podobnej kapacite. Mám ich dosť, takže je z čoho vyberať. Problém je v tom, že pri prvých článkoch ktoré som vyberal som si neskontroloval počet cyklov ani vek baterky... Ale zo skúsenosti vidím, že počet cyklov je priamo úmerný kapacite, takže to hádam nebude až taký problém. Rôzne vnútorné odpory budú znamenať nerovnomerné vybíjanie a nabíjanie. Som zmierený s tým, že mi baterka bude degradovať rýchlejšie než by sa očakávalo. Baterku si vyrobím 7P10S, aby nebola zbytočne ťažká. Využívam 3D tlačiareň na moduly N.E.S.E. Sú rozoberateľné a každý článok bude vymeniteľný samostatne. Ak uvidím že jeden z desiatich modulov stráca napätie rýchlejšie, môžem ho otvoriť a skontrolovať jednotlivé články, nájsť problémový a ten vymeniť. Celá batéria je bez zvárania alebo letovania, čo je super konštrukcia.

@E-GaN 3 года назад

1:26 Don''t puncture. Damage. and disassemble it ha ha 😂😂😂

@mailjati 5 лет назад

your cat is cute

@JUANKERR2000 4 года назад

I like that the cat as soon as it heard that it heard that you wanted his/her help nonchalantly ambled out of the danger zone. Could we know your feline friend's name, please?