Dangerous USB chargers 18

[@Trinitrophenylmethylnitramines]

As expected, this man can use anything as a pointer

[@glmnet]

Im still waiting for 🍌 as a pointer

[@Ohm7111]

Looks like primary and secondary windings are also touching in the first charger. 9:59

[@DiodeGoneWild]

You're right, I should have examined this spot closer ;).

[@Pulverrostmannen]

It always makes me smile when you say Super Dodgy :D

[@ceilingfanmusic6597]

Its a good day when dodgy power supplies returns

[@pierreetienneschneider6731]

You, Sir, are a legend... I love that "Доджий" verdict said in your beautiful Eastern Europe accent😁

[@onbot_]

used to watch this channel 5 years ago, came back and im happy that hes still making videos!

[@transientvoltage]

That second charger is a public health hazard with the mylar film capacitor. Made about as cheap as possible. The solder work on the circuit boards look like it's all by hand, it's too messy looking for a machine.

[@tookitogo]

Nah, hand soldering is too expensive, it’s just really poor wave soldering. Just the LED current limiting resistor looked like hand soldering. But it could still be low-quality wave soldering.

[@ChristianPinnock-u5c]

Made in shitty china garbage chargers

[@TheSpotify95]

Haha, I could tell that the second one wasn't going to be very good... The first one was also really nice, getting over 180 degrees C whilst in operation! Electrocution houseburners!

[@craigrenwick9132]

I always enjoy a Super Dodgy!

[@Mr371312]

Quick charge is a proprietary tech, you technically need to pay royalty on every charger that uses it. Thats why the chips are unmarked.

[@DennisGr]

really happy xiaomi actually gave me the 120w charger packaged with the phone. even charges a macbook quickly, didn't expect that. wish i had your knowledge and equipment. really wana know if it actually reaches 120w

[@trevorhaddox6884]

It would be fun to megger (insulation tester) these things and watch them arc over at high voltage. I think BigClive did it to a few.

[@liam3284]

I wish I still worked in the lab where we had an old 10kV insulation tester. I think the transformers would fail first.

[@antibrevity]

On the first one, it's hard to call it "thermal protection" if it cuts out at 190C; that's nearly enough to combust paper. However, it's surprising that the transformers had reasonable separation between layers. The second one might actually be safer because it can't sustain enough current to bake itself. Failing to reach 2A of current is both a fraudulent claim *and* a safety feature. 680mV PP ripple on a 5V supply is not a useful feature, though, and the transformer is deadly.

[@liam3284]

I don't think it was protection, so much as the silicon going out of parameters enough to fail. Junction would be well over 200°C

[@chilly1661]

Absolutely live this series

[@artbeautyandmadness3091]

Some audiences might want to see the 2000V primary to secondary insulation test on these dodgy chargers (buy 2, tear down one, HV test the other)

[@Djmatrane]

The C1-118 (S1-118 / С1-118) oscilloscope was produced in Lithuania.

[@UpLateGeek]

I hope you had your fire extinguisher beer nearby during testing? Even I was feeling uncomfortable with how hot those chargers were getting!

[@gordonwelcher9598]

When specifying a transformer like this It must be made clear that the auxiliary winding requires extra insulation from the secondary. Perhaps this was done but the manufacturer ignored the engineer’s instructions. Maybe the samples were made correctly but the production transformers were not. Always keep an eye open when having your product made in China.

[@brucepickess8097]

Hmmmmmm,"manufacturer ignored the engineer's instructions" ??????, so this was engineered ?????, really !!!!!😏

[@seanoconnor8843]

I'm right with you when it comes safely but I'd just like to note that bloody hot is not a fire

[@liam3284]

That is hot enough to set paper on fire.

[@wdavem]

I guess the markings on the second charger only mean that power comes out, and it has a brand. That indicator light would be awesome if it back lit the brand name from the wrong side of the board.

[@janno288]

Can you do a video series about vacuum tube tesla coils? I have seen that you have made some

[@zenvir1680]

at least the first charger functioned as advertised

[@ccricers]

Looks like I'll have to look elsewhere for chargers with ports colored like Skittles.

[@ElTioGamerR]

Este csnal es cool

[@e99g]

Where is Kofola ?

[@tajtrlik1111]

Ďakujem za ďalšie video z tejto poučnej série, tieto dva kúsky naozaj stáli za to.

[@k4be.]

13:50 that "Y" capacitor is apparently already cracking?

[@MrTurboturbine]

CY and C3 were swapped during manufacture

[@dr.nadhimrasool2959]

Thank U man.

[@jurajhezel942]

Nice video... Nothing can make you trust this society more than miniature pocket house burners 😅 You could actually bake some meat with those poor diodes 🤦‍♂️ Would like to see some posh power supplies that would actually have high ratings... But that would probably be too boring... 😅 Nice to see how minimalist such mains hand warmers can get 😅 That takes engineering skills 😂 ❤

[@blisphul8084]

The Ruifei 65w slim USB C charger may make a good candidate. It's thinner than the length of a penny, maybe a dime, but can charge a laptop.

[@MyTvChannel-M]

Very thankyou 😊

[@German_byte]

“Let’s bake it.” I thought it was going into the ETA bread maker.😮

[@emrekoyuncu4608]

Where are you from dude? Tou accent very different

[@dpvng.dpvng.]

for second, they looks like misplaced green and blue capacitors. blue must be on a CY place

[@RicoElectrico]

Hot chargers in your area

[@pandanarum979]

Module yg berwana merah namanya module apa?

[@drelectronics13]

Can you make one which is upto standards,so they learn how to make one .

[@tookitogo]

Look at teardowns of genuine, original Apple chargers. They’re model citizens in terms of power supply design.

[@liam3284]

There was a "bull" one previously, which would at least pass standards here.

[@rodrigolima661]

thanks a lot for share your know! Regards. alô brasileiros não tem galantia! rsrsrsrs

[@LawpickingLocksmith]

My Ozone repair video part 1 has just been uploaded.

[@TheMrjogas]

But marking on pcb CY1😂

[@LinuxLoader1287]

Mini oven

[@mitropoulosilias]

180????? how the lead solder dont melt?

[@tookitogo]

Because it’s lead-free solder, so 217-227C.

[@mitropoulosilias]

yes but anyway it start to melt about 150-180 C@@tookitogo

[@tookitogo]

@@mitropoulosilias Uh, no. Every alloy can be viewed as a base eutectic plus any excess that may be present of a constituent metal. For example, 60/40 solder is metallurgically 63/37 plus 3% excess lead. This matters because the temperature of the eutectic is the temperature at which the alloy begins to melt. 63/37 tin-lead is a eutectic, so it has a single melting point, not a range. That temperature is 183C. So 60/40 solder, which is not eutectic, is actually a large amount of 63/37 eutectic, plus small crystals of lead. Consequently, 60/40 solder starts to melt at 183C, but doesn’t fully melt until several degrees higher. Tin-silver-copper lead-free eutectic melts at 217C. Not below. Tin-copper lead-free eutectic melts at 227C. Not below.

[@mitropoulosilias]

googd. i didnt knew@@tookitogo

[@Lumiobyte]

Help KZbin by answering one question ❓⁉️

[@skuula]

I have some of those green through hole non polarized capacitors. Those were good in their prime time, around 1980.

[@liam3284]

greencaps, fine for small signal use, not mains isolation!

[@tvelektron]

It is "kind of fun" twatching hose videos of course, but i would realy be interested in good chargers at reasonable price... Original spare parts from the big phone companys like Apple or Samsung are fine but overpriced. So where are all the price-performance winner ??

[@liam3284]

What is a "reasonable" price. I doubt you could make a good Quick charge one under US$50.

[@karlasalcedozavalza]

Octavio..)

[@Tsiikki]

Why not leave the "safety" cap off, if you're trying to kill the user?

[@Doomslayer151]

dont buy powerful adapters from strange brands

[@dariuscalitz9704]

Would be cool if you make them fail

[@levygabriel6611]

Xfx

[@porterfleischmann6650]

👊 'Promo SM'

[@Rosenrot_raccoon]

Druhý má vskutku originální jméno

[@gregwmanning]

super dodgy!

[@levygabriel6611]

Cfd🎉ty😢ll

[@beatrute2677]

oh boy oh boy oh boy. DGW gettin back to his roots.

[@schaltnetzteil495]

The first charger was absolutely baking itself at the maximum load it could supply without shutting down. Those chargers are getting better and better. These videos never get old. Edit: If a USB charger says "original" on it, you know it's the farthest thing from the truth.

[@DrHouse-zs9eb]

How about "orignial"? 😅

[@schaltnetzteil495]

@@DrHouse-zs9eb Or "origianl" 😂 One of the chargers he opened in an earlier video actually said "origianl" on it.

[@uhm175]

If it says original, you know these are the crappiest charger quality ever, don't come near any of them

[@Руслан-н3ч7ь]

0:56 hy

[@engmcgill]

Did anyone else notice that near the end (20:47) when he shows the underside of the "super dodgy" circuit board, the solder joints near the bottom edge look like little skulls? How appropriate!

[@andymouse]

Yeah ! I see 'um LOL !

[@gitawrongtranslation-youtu9701]

😮

[@schaltnetzteil495]

They do look like skulls 😂

[@brad8122]

💀💀💀💀

[@Daniel_QC_USB]

electrocution house burner is now my new favorite word for crappy phone charges

[@megatronskneecap]

EBH Chargers

[@memetsolder]

Electric house terminator device

[@AffectionateLocomotive]

AYOOOOO THIS IS LITERALLY WHAT I USE !

[@Matt_moran78]

I like these dangerous USB chargers videos. It is good that you show these chargers for the death traps that they potentially are. Anybody considering buying a new charger for their phone, tablet, etc should watch your videos before buying anything. I had to buy a new charger for my phone recently and decided to pay the money for a Belkin 60 watt dual charger which delivers 30 watts on each USB C port. It supports all of the necessary communication support with the devices connected to it to set the right charge voltage and current. It would be nice as a comparison if you could test a Belkin charger and tear it down just to show what a properly engineered charger circuit should look like. I love your videos by the way keep up the good work!

[@johncoops6897]

Danyk - you should make some videos about EMC /RFI supression and why buyers should care. Also a video about Output Voltage Ripple, why it matters, and what level is acceptable

[@davey2k12]

Bloody hell can cook a bacon sandwich on that one 190⁰ 😂😂😂

[@brucepickess8097]

USB CHARger - Use for Smoked Bacon.😏

[@davey2k12]

@@brucepickess8097 🤣🤣🤣🤣🤣

[@johncoops6897]

They need to use the most dodgy Lead-free solder in that once, otherwise it automatically desolders itself at high power levels 😂

[@BeefIngot]

getting close to desoldering itself/causing some great house burning arcing

[@beatrute2677]

Damn man, you've been gettin good mileage out of your sisters molten hair dryer.

[@_________________404]

frfr

[@Tsiikki]

This is why manufacturers should still provide OEM charger!! Over 1000 euros(!!) for a phone and no charger, while 100 - 200 € phone comes with charger and headphones. Or make it that while buying phone offer OEM charger for 5 €! I bought 29.9€ Honor supercharger (66 Watts and comes with good cable) not a bad price, but before it came with phone..

[@blisphul8084]

I lost my OnePlus charger, so bought an $18 65w charger to replace it and my phone only goes to 30w (its an older phone) and that charger gets very hot. It works fine though, and it's been a couple of years without issue.

[@Anuisgod]

Why would you buy phone that costs 1000 euro ?

[@Tsiikki]

@@Anuisgod I didn't, but midrange phone, like Honor 90 512/12 (I'm replying with one) cost 399€, no charger, no headphone jack, no SD-card. Someone could want the latest tech with best connectivity and 5 years of updates. Reason just doesn't matter, what comes in the box does.

[@TomaszStachewicz]

186 degrees is already a fire hazard if you happen to have any paper or wood dust in the air.

[@brucepickess8097]

Well yes, however it would have to enter the USB ports.🤔

[@TomaszStachewicz]

@@brucepickess8097 that's the problem with dust, it likes to go everywhere

[@liam3284]

don't use in the wood workshop, or any room.

[@englishrupe01]

Maybe it's an in-room flammable gas burn-off feature?

[@d.k.9406]

Danke! Thanks a lot to continue this series!

[@megatronskneecap]

There are so many Amazon chargers that get so hot they can boil water when charging something stupid like a smartwatch.

[@Conservator.]

Thanks for showing the horrible ripple on the second charger. That ripple alone may damage your phone and other devices.

[@dickschottky9406]

Thank you. I never tire of these videos.

[@Gooberslot]

I love to see that Super Dodgy sign.

[@schaltnetzteil495]

I guess the second charger is beyond super dodgy. It's more like "ultra-dodgy".

[@Vladynko1]

Unreal temperature, how long that silicon can last. I have always thought that if I was making something electronic, the temperature of the component above 80-90 °C is fatal. And that is not the case at all. But apparently it brutally reduces the long-term life.

[@liam3284]

For electrolytics, it will boil them. I remember an autopsy on an Apple "airport" router. After just a few months it cooked the mains smoothing capacitor, so the primary side failed short, took out the internal fuse.

[@GodmanchesterGoblin]

Plenty of silicon can be good to 125 degrees Celsius (that's a standard maximimum specification for mil-spec analog and logic parts for example) and some parts can be designed to be OK as high as 175 degrees Celsius under specific conditions. Lower temperatures that you mention are often upper limits for high-density parts such as modern CPUs, but the silicon can often take more heat, it's just that the timing and leakage current parameters go beyond their workable values. Either way, the design must be able to get the heat away safely - not something that these supplies are capable of.

[@crumplezone1]

" Bloody Hell !" you need to use this more often as it is your catch phrase :)

[@TheSpotify95]

Haha, 186 degrees celsius, bloody hell!!!

[@MVVblog]

I would buy the second charger solely for the beauty of the coloured connectors 😄

[@Zebra_Paw]

Damn 186 Celcius I wonder how long this charger would take before it explodes!

[@lalasonycierny1945]

bladyhel

[@Zebra_Paw]

@@lalasonycierny1945 😂

[@delancre5858]

Those not a "dirt and burns" on the table, those are battle scars.

[@Speeder84XL]

China quality at it's finest 😂

[@pvc988]

That's why we moved to lead free solder. Leaded would desolder itself at operating temperatures of modern electronics.

[@warialinth]

Interesting way to thermally fuse your crappy power supply: Get the ICs to literally drip of the board.

[@DiodeGoneWild]

It has to be a lead free solder, because Sn63Pb37 melts at 183°C

[@mernokimuvek]

@@DiodeGoneWild I think leaded solder is only used for medical equipment, where lead free solder is explicitly forbidden because it is not reliable enough.

[@tookitogo]

⁠@@mernokimuvekIt’s not that lead-free is unreliable, it’s simply that it doesn’t have a long enough history of use to have _proven_ its long-term reliability. But we will soon be there, I think, and some of the lead-free exemptions are actually expiring (and I think medical is one of those).

[@oliverer3]

​@@tookitogo Yeah the unreliable lead-free solder is mostly from devices using the cheapest and non eutectic alloys.

[@tookitogo]

@@oliverer3 I don’t think eutectic vs. non-eutectic makes any significant difference. Again, I have yet to see any real evidence of _any_ reliability problems due to the solder alloy itself. There were _process_ problems early on, but manufacturers have long since figured that out.

[@Cyklon-A]

12:48 awesome 'shortcut', nice content DGW, thanks a lot for this vid 🤜🤛

[@keemoak.]

One year later phone chargers will be input = mains Output= mains And no transformer inside Super fast charger for human body😂

[@liam3284]

Just a Marx generator.

[@weerobot]

****SUPER __DODGY☠***....T-Shirt...

[@Azaakiel20]

Very good video again:)

[@LMB222]

The Chinese don't know what thermal management is, point. They can build a power supply, but I guess they've never learned about heat.

[@liam3284]

Nah, they do know, these are just built by companies who don't give a rats'

[@snipersquad100]

sUPER DODGY

[@Grey390]

Fantastic video! What kind of thermal imaging camera are you using? Its so small and the resolution is really good. No wonder these chargers are suspiciously low priced when they offer so much.

[@BDYT1422]

Series is back lets goooo

[@nikiamz6501]

How the chip is not blowing up at that temperature? Isn't the max operating temp 150 deg

[@tookitogo]

Depends on the chip. Power electronics chips tend to be designed to handle higher temperatures.

[@janno288]

My day has been lit up like the house that leaves these plugged in

[@Azaakiel20]

I love when you say niiicee :D

[@gabrielv.4358]

Thank you for these videos! They are awesome, funny, informative and just great

[@tradingtricks5093]

Kindly make video on how QC charger feedback circuit work because it is giving 5V,9v and 12V output

[@peterdavey2767]

Your advise is sort, I have just purchased second hand RIGOL DS1052E 50MHz Dual Channel Oscilloscope. There is a hack to upgrade to 100MHz is it safe to do so ?

[@HyperMAX9001]

What about those wall sockets and extension cords with USB included? I guess only the finest super dodgy technology. And it's always connected and waiting for meltdown or to make things electro-cute.

[@alejandroalzatesanchez]

i created an contraption to fast charge 16850 with a power bank board and a two headed charger (that has 2 transformers) and the strain that i knew the charger was going to get made me put a fan, ironically enough the capacitor of the unused side popped but the side being beat to oblivion was fine. but i changed the cap now the unused side works fine again. Also passive cooling is useless on chargers, but in my case the fan didn't let it get even warm. (the board was exposed to the direct air which is extremely dangerous but i made a new case to it)

[@viperwizard491]

engineer in china ''safety capacitor'' = ''electrocution capacitor'' :D

[@GodmanchesterGoblin]

Love those fake CE marks.... The first with too much space C to E, the second with C and E too close together. If they can't get that right, maybe we shouldn't be surprised that the rest is so poor.

[@MrLuigge]

6:40 😂😂😂 bloody hell! I laughed so much. that is really hot, i wonder how it didn't fried by being on for 3 hours.

[@zeendaniels5809]

Can you take a look at some other Chinese chargers, but supposedly good ones? You know like BaseUs, Ugreen or more recently Essager.

[@Termini_Man]

The first one was ok, cheap. The second one was absolute shit. you wouldn't even really be able to use it to charge multiple things at once because the outputs are in parallel.

[@hardscorerockkssss]

mayve try test phone charger thermal limits external fan cooling.lets how far you could push them with cooling

[@ketas]

i wonder where his gf went, hopefully he didn't disassemble her. cat is also there still, altho cat also seems so dodgy