Dangerous USB phone chargers 5 (Quick 18W QC 3.0)

Another collection of dodgy USB phone chargers from eBay. This time a quick charger edition. Three cheap USB chargers that support 18W QC3.0 charging and they can supply 5V 3A, 9V 2A or 12V 1.5A. Some of those cheap chargers may not comply with safety regulations and they may cause an electric shock or fire. They also tend to have a non-existent interference suppression, poor output voltage regulation and a fake current rating.
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[@egafx]

the problem with eBay things is... even when you know what's inside and confirm it's good enough, it doesn't guarantee you'd get the same thing when you buy second time. The next product could be the cost cutting version with doji transformer etc 🤡

[@windshield11]

Exactly. I ordered 50pcs IRFZ2807 or something, that's like 55a low voltage mosfets to pwm drive a car starter, 4 in parallel without emitter resistors. Paid 1.40 doulars for them. I got recycled ones with short legs and thermal paste and some with thermal pads on them as well. Surprisingly all tested good and they have been running at 200++ amps with 0 issue. If I order from the same seller again I'm literally playing the lottary, God forbid I'd put one of those anywhere important. I mean it's a good deal, but I guess this one was too good.

[@davidbass6780]

@@windshield11were they listed as new and did the description at least suggest there will be used ones included aswell? There is also a difference between selling tested used parts and just salvaging without testing them before sale.

[@windshield11]

@@davidbass6780 new, of course my friend

[@unitrader403]

@@windshield11 Freshly desoldered from a new shipment of electronic trash :D

[@windshield11]

@@unitrader403 It's next level recycling. I've ordered Xeons and RAM too, all used but in working order. Even motherboards, but they seem to sonic clean them first. I can smell the solution on it. Also one of the headphone jacks on one was on it's way out, so I used a USB sound card instead. Seriously can't beat their prices.

[@martinleska4292]

5Fe is conventional 5grams iron, zinc plated weight for car aluminium rim ballancing. Its crazy put it inside, because after time sticky tape fall and it can short circuit inside.

[@ccc5226]

it is probably a reinforcement of the housing so that it does not break under pressure

[@ex-soldier4341]

@@ccc5226 no, its there to increase weight

[@wphanoo]

It's quite incredible that they went to the effort putting that weight... Doesn't matter when you buy online !

[@SrWolf90]

When I have seen it, I am left with the face, which I just saw WTF.

[@ShadowriverUB]

its probably to balance with weight of transformator

[@MegaSunRise3]

6:54 BRUH, it looks as if they've put a balancing weight for car tyres in the charger

[@kjur18]

Looks like the ones you put on aluminium rims. Weights 5g.

[@versedbridge4007]

That’s hilarious 😂

[@calembur]

Bloody helllllll...

[@SianaGearz]

I've also recovered a similar looking, also so marked weight from an inexpensive gaming mouse. It was really an improvement without it.

[@Pirelli.]

@@kjur18 yes thats wiiird 😂😂

[@uK8cvPAq]

That sticky piece of metal is a wheel weight for a car!

[@tronixfix]

Yup, now it’s the “make it feel like quality” weight for power supplys 😂

[@ex-soldier4341]

@@tronixfix is that you the console repairman?

[@tronixfix]

@@ex-soldier4341 yes and no.... i think you meant Tronics Fix, even though i also repaired x360 back in the day 😄

[@t_Gecko]

Nice video quality! The 50fps really do make a difference

[@Basement-Science]

Yeah noticed it immediately.

[@ShowXTech]

If you don't move the camera it's not that important

[@PCIeTeam]

I noticed it by his hands

[@mihaichirila9127]

Holy thats what i thought

[@BillAnt]

Honestly I can't tell the difference between 30 and 50fps on a laptop, but that's just me. I'm looking at the contents not the video quality. ;D

[@gianluca458]

The nicest video series for me, XD. Including the big power supplies reviews. And we have a new category!! Slightly dodgy!? Thats NIIIIIIICEEEEEEE. Really good interesting videos, keep them up!!!

[@filenotfound__3871]

I wanted to see the time-lapse of the rectifier desoldering itself.

[@RDCST]

The load is too heavy, I'm outta here.

[@BillAnt]

I wanted to see the rectum-frier in slow motion frying the rectum. xD

[@jondough76]

I've been needing a good "bloody hell!" Stay safe and keep up the good work!

[@RyeOnHam]

"5Fe" is 5 grams of Iron (Fe). It's a wheel weight used to balance wheels.

[@mernok2001]

Why does it matter if its iron or lead?I thought only the mass would matter.Maybe the dont use lead to be super green fiendly?

[@RyeOnHam]

@@mernok2001 It does not matter. The point is they added the weight to fake consumers. Shady.

[@mehmetulusofficial]

@@RyeOnHam I think the 5FE part is not a problem, maybe he can use that when he need for any other project, of course 5fe is not radioactive dangerous item. Never mind bro.

[@RyeOnHam]

@@mehmetulusofficial They have added a weight that can possibly (and WILL) dislodge and short out the unit. They have done this to LIE to the customer who otherwise associates weight with more robust components. Radioactive? Who the fuck said anything about radioactive?

[@hexagonist23]

I'm surprised they even put real iron there and not some plastic weight.

[@kjur18]

7:07 You could put trigger board on the load itself, that's why there is vertical socket near input. It will trigger modes without loses on connectors.

[@cezarcatalin1406]

true

[@HighestRank]

Yes I see it

[@prathikprashanth2932]

Nice video! I like the 1080p 50fps resolution. And I can't wait to see the teardown and schematic of the 1000W PSU:)

[@BRUXXUS]

Beautiful high quality audio and video! I also really love all your work, but tearing down dodgy stuff if my favorite. :)

[@agustinusreynaldi7101]

Self melting solder tin??? *That's amazing*

[@LarryKapp1]

I picked up a similar usb charger somewhere - from electronics recycling . I noticed it showed 12v when not loaded - but dropped to 5v soon as it had a load on it. I didn't have the fancy button to switch power level but just got one and also just got the same kind of usb load you used in this video. I have a whole bunch of usb chargers - people throw away / recycle these all the time and I pick up every one I find. Now I can test them much easier with my new test equipment and load.

[@LaciDoszka]

16:11 There is an "X2" mark on the capacitor. I think it's the class.

[@cezarcatalin1406]

Oh no... it was supposed to be Y2, not X2

[@widyahong]

yes and class x2 can safelly use as y class capacitor

[@cezarcatalin1406]

@@widyahong Class X is live to neutral and can safely be a class Y too but class Y is usually line to earth and cannot be safely replaced with a class X.

[@TheSpotify95]

yeah that cap looks to be an X2 rated safety capacitor. It's not Y1 but at least it has some safety rating!

[@JeanPaulElectronics]

You cannot replace Y capacitor with X one. X don't guarantee to fail open. Failing short circuit could lead to electrocution

[@Delali]

6:53 I was waiting for "Bloody Hell" all along. Now my soul can rest in peace. I knew i could expect the words "dodgy", "bloody Hell", "maybe" and "probably" for sure. Man i love your videos

[@Zebra_Paw]

I love this dodgy chargers series so much! But i am still waiting for the schematic of the 12V 50A power supply

[@cameron20020]

Thank you for going into all this detail, you make very good videos.

[@johnwelbourn3811]

I'm loving the new video fps, makes a huge difference👌👌

[@evergreatest7644]

Roses are red, Voilets are blue, I love these kind of videos, Thank you.

[@billywhizzy]

That iron bar serves 2 purposes. Heat dissipation of the transformer and also shock protection. When these chargers fall they usually break the print off the heavier components. In this case the transformer.

[@dpvng.dpvng.]

3 there is radioactive waste melt inside lol

[@LucasPereiradaSilva]

I was waiting for a DGW on how those quick chargers work and how different they are. I learned a lot about SMPS here!

[@piconano]

The new camera works great. Very sharp picture. I would use a double schottky diode before I use any synchronous rectification. When I designed a steeper motor controller back in 2003, I used an Allegro stepper controller that had synchronous rectification builtin. The problem was, if you disconnected the motor from the driver while in operation, the Allegro chip would blow up! For the solution, I used external schottky diodes, and the problem disappeared.

[@gabracal]

This should be a permanent series in your channel. I can already imagine something like: DPC Season 2, Episode 1: Samsung Edition

[@adrianking19911991]

Diode, maybe i 'm wrong, but for the last charger notice one more thing: There are two outputs, and these outputs (but maybe i 'm wrong?) are connected parallel together, so if you for example connect the QC capable phone to the USB1, and negociated voltage is 9-12V you can connect some non-QC device to the USB2 and just fry this device, because there is no separate outputs with separate chip and voltage control..... Just great design :D

[@eDoc2020]

I was wondering this, too.

[@blake301987]

Hello, I really enjoy your videos, some of the best content on KZbin. I like the quality of the new camera, I don't really think 50fps is necessary though, it'll just take up more of your hard drive space and take longer to render your videos. If you had lots of camera pans or filmed fast moving objects it might be worth it, I would put more priority on higher resolution rather than frame rate for your content. Look forward to more videos!

[@TomaszStachewicz]

I'd love to see an analysis of one of the new GaN USB-PD chargers, I still can't believe how small Anker's 30W usb-pd (up to 20V/1.5A) is, for example.

[@5478Ashley]

19:18 Finally new grade: Slightly Dodgy

[@WagTsX]

nice, I have bought some of those chargers labeled as quick charge 3.0 but they are just ordinary (and very dodgy) 5v chargers. I ended up using they just for small loads. Also cost about USD $2 each, came with 4 USBs but barely supply 2A in total.

[@Starter61]

"It is another self-melting design". You have to love this guy !

[@TheSpotify95]

Yay, another episode of Dangerous USB Phone chargers! :)

[@peterasztalos6370]

Finally camera and PC upgrade.Keep up the good work!

[@Erdie5]

The conductive wheel weight held on only by sticky tape is a nice touch. And to those saying it "fits nicely" onto the transformer...what are you seeing that I am not? I see at least 2mm between the weight and the transformer before it was taken out of the case. It's one thing to use weights to fake a premium feel, it's quite another to do so in such a careless manner.

[@ruimvp]

The iron weight it is a safety measure. If the charger gets too hot it will melt the glue and the weight will fall in the primary side. This will make the current breaker to shut down... 🙂

[@two_number_nines]

I think if you've supplied the last one with 120v it wouldn't have melted. Its a flyback designed for a lower voltage input and around 10v output. When you raise the input and request 5 volts the flyback duty cycle becomes incredibly short, so the current goes high and the rms trough the diode even higher.

[@BleakVision]

Part of learning a foreign language is mastering the speech melody😂😅 Na seriously, love your voice, you are quite the character! So none of these explode, ha? I‘ll take that as a recommendation. I love lava lamps, so self melting designs are my thing.

[@Quasisaur]

8:10 LOL you sounded like a food critic there :)

[@dezibeldani]

0:07 The accent is killing me :-D

[@wychowanek90]

I was wondering if this metal weight also doubled as a kind of heatsink for the transformer. Generally I'm quite surprised because i expected way worse and no voltage switching.

[@mysock351C]

Really digging the high frame rate video.

[@dg0mg]

Thank you for your very interesting and educational videos! You should test the isolation of the transformators between primary and secondary before unwinding with some High-Voltage-Resistance-Meter to show the difference between the different winding-methods. Perhaps you can show the flashover at the weakest position with a chinese High-Voltage-Generator too ^^.

[@Random_4400]

I love this series!

[@Purple431]

Me too!

[@Leo-pd8ww]

Congrats with your new computer bro!

[@Velehokala]

Flooor is meltiiiing.... Flooor is shakiiing the whole rooom is shakinggggg... only legends remember

[@andricode]

EVEN MORE SAAAALT!!!!

[@Velehokala]

@@andricode xd

[@thisfeatureisbad]

Fúha. Nový upgrade kvality 😍

[@-yeme-]

that random piece of metal (I think its actually a anti-vibration counterweight from a car wheel, the things they attach to balance the wheel when you have new tyres fitted) could also be a huge fire risk. as well as bridging primary to secondary, it could short the input terminals and draw huge current. the second charger though, with just a bit more care in the transformer assembly it could have been really good. certainly a very far cry from cheap USB supplies from just a few years ago, the ones that were all through hole, thrown together by hand in 30 seconds on paper and resin boards, all discrete w/ no ICs etc

[@CMarxChako]

🤣🤣🤣🤣🤣🤣🤣 Hello Sir DiodeGoneWild. Nice video. That giant blob of metal is probably a heatsink of sorts for the transformer..

[@crazyfurnaceguy1229]

2:37 The tester mode is on QC2.0 , you should swich to QC3.0 for current testing！

[@chunkychuck]

Doesn't that mean the charger is only QC2.0?

[@crazyfurnaceguy1229]

@@chunkychuck No, because the tester doesn't have QC detect feature , so it needs manual to swich

[@amrishhirani6096]

Load system for charger voltage is nice👍 Thank you 👍

[@cezarcatalin1406]

I am working on a charger design that has no stinkin’ transformer - the entire energy is passed at a high frequency through a pair of safety capacitors thus eliminating the costs and the risks associated with nasty coils.

[@moinshaikh6684]

Very nice explaination, we such smart youtubers for new era

[@rmjnm]

Excellent work thanks.

[@TechGorilla1987]

@14:50 - that charger also had a definitive 'SNAP' of inrush current (visible spark as well) leading me to believe there was some filtering.

[@SarpErsoy]

I wonder something: do you scrap the capacitors, usb ports, transformer cables etc. when you disassemble these chargers or throw it in the bin?

[@enryfrafranci]

great to see you try new stuff! small technical thing, i can hear some background wind, if you can try getting the mic closer to you and lower the gain on the camera, and/or try using audacity with the noise reduction feature, i hope that helps

[@valdisblack1541]

this 5Fe thing I think is a balance weight for wheels ;D

[@versedbridge4007]

It is lmao

[@berukadehikari2634]

5 iron

[@cfusername]

These weights are also used for balancing RC airplanes. They already come with the double sided tape.

[@atifradwan8169]

It's a very nice video I really enjoyed everysecond of it...

[@rilosvideos877]

As always - great examination and test! For YT video you should stick to 30 fps (or 60 fps) as most computer monitors have a 60 Hz screen. So when you record in 25 or 50 fps the video will be sligthly flickering as each picture is shown a different amount of time! In general it is o.k. to use just 30 fps. 60 fps is good for fast action or heavy camera movement.

[@NWEuroLangs]

Thank you for this video Danyk. :) Australia's nominal mains voltage is 230 volts but in many places the Sunday afternoon voltage is down to 200 volts as this when many people are making the Sunday roast dinner. Is there a way you can do a test of a USB charger at 200 volts? :)

[@alteans]

I love your accent dude..lol So far the Aussie adapter seems to be the best one out of the bunch... Thnx for the review

[@3ccdmike]

I thank you, nice work.

[@mastersebby8582]

The metal piece is a wheel weight for alloy wheels on cars when you balance the wheels after changing the tyres.

[@DrHouse-zs9eb]

Great video quality! I'm surprised that you can get real fast chargers for that cheap.

[@rhiantaylor3446]

Seems we now get realistic track isolation spacing from China and now even sync rectification which is neat but the trouble with dodgy transformers is that you don't know about it unless you destroy the thing to inspect - thanks for doing it for us :)

[@mernok2001]

Nice video Danyk.Can you show us a schematic for quick chargers?The slightly dodgy one was qutie new and surprising.

[@markusepple6204]

Great review!

[@KuntalGhosh]

image quality is much better now . i can see all the details of the chips and pcb and clearly read numbers! , what is the specs of ur new pc ?

[@G1ZQCArtwork]

Hi, Do you think that 5Fe piece of metal might be to influence the magnetic field in the transformer.? Not quite sure what it could do to tune the frequency. What is it made of. Aluminium or Ferrous.?

[@lupin3161]

very nice video sir, valuable information in all your videos... Can you examine/teardown the inner workings and circuit of an ADSL modem someday please? that would be awesome, i didn't find any on youtube.

[@anthonydenn4345]

So what I'm getting from this is, if they put some kind of insulator on the primary coils wires to prevent coming into contact with the secondary coil, this would get a pass?

[@hyperlapsevideosofcebu4283]

I am curious what is the name of the tester where you can switch the charger's voltage from 5v to 12v. thanks

[@deejayitalo]

Would love to see a test of a charger that costs much more. Like the one i use: Baseus 65W Charger

[@doverstreet4319]

exactly.... i also have one but a 24w .but it can deliver what it claims..I think you have the GaN charger PD right?

[@deejayitalo]

Yes i have. I charge my smartphone and my notebook with it. Its perfect for me. There's also the 120W version but till now i don't need that

[@rtyzxc]

Also stock chargers from reputable phone brands. I wonder if they have better transformer isolation.

[@truthhurts2149]

I have the baesus gan 45 watt and its not working properly and has a bunch of.suspect reviews on amazon. Im on my second replacement and it still wont fast charge properly.

[@Gameplayer55055]

Can you give links for non dodgy adapters in the description? Price doesn't matter much, just wanna charge phone without problems with power and without electrocuting me

[@tamahagane1700]

Let's plug it in! No explosion... 😂😂😂

[@Pirelli.]

thanks mr. DGW, again very well explained. 👏😌until the next video and greetings to your sweet cat. 😚🐱

[@superdau]

Do you have any plans to check some "intermediate" price (5-10€) chargers? I'd really like to know at which price point chargers start to transition from "slightly dodgy" to "nice!".

[@chichaphile4943]

i can't stop laughing hear your voice 😍 love it

[@karlmartell9279]

What kind of creepy scotsman ist this?

[@fordprefect2735]

Once I got used to it I must admit that the technical content is one of the best I saw on YT I'm French BTW

[@SlinkyStoney]

I like your grading system! Maybe soon, we can find the extra super dodgy or the ultimate dodgy.

[@Darknecros7]

Yeah. I’d like to see one that would be graded “Ultra Dodgy” with those words in red on a black background.

[@alet3348]

Hello, my QC3+PD 30W charger (EU plug) almost always does an electrical arc when i want to plug it in. Arc happens at about 5-10mm distance between the charger contact tip and the contact in the socket hole. This happens even if nothing is connected to charger. It is normal? As far as i can remember, charger cost over 20eur, so i wasn't cheaping out on it.

[@MrRelevance02]

Jus took apart my quick charge 3.0 that’s similar too the AU one and it has this massive chip between the distance from the high voltage side and the low voltage

[@MrRelevance02]

It has two massive smoothing capacatooors

[@mrlazda]

On second charger it clearly stated in capacitor X2. By the way in SMPS bigger core do not necessary mean more powerful power supply size of core is mainly dictated by switching frequency. And as distances from primary to secondary windings of transformer by standard it is required to be just 3mm for non double insulated wire (and if I remember correctly nothing if you use double insulated wire).

[@tiaxanderson9725]

I need to get myself one of those higher quality Voltage and Amps measurer, as well as a Voltage selector, and a variable .. load devices? It's nice that it says what each piece can handle on the plastic, but the truth is much more complicated.

[@sixstringedthing]

Damn, that is an impressive disclaimer at the start. Like.

[@erdemsahin9962]

Which QC 3.0 charger (orjinal) you advise ? Anker , Blitzwolf, PZOZ etc...? I need a quality one. I wait your answer? Thank you so much for this video.

[@paparazzo80]

Hi.I bought Lenovo Tab 2 Pro tablet but did not came with OEM charger which is 1.8A and 12V. May I use 5V 2A charger from your vids..its 5-9-12V chzrger all in one device.

[@SilvaD702]

Is that a stick-on wheel balancing weight for an auto?

[@alanx4121]

What determines the output voltagedrop when current approaches max? Probably the capacity of the output filter. 5V has become so mainstream, isn't it better to go back to normal transformers with full bridge rectifiers?

[@kimkong9622]

Smart man, thank you so much for sharing....

[@Miata822]

Two of these get really close to being great but I can't remember you finding a safe transformer in any cheap charger. Certainly the transformer must be the most costly part on the board but are there no good ones? I took autopsied several chargers I had at home and all were indeed Dodgy. I also disassembled an old iPhone charger and it was amazing, two boards w/ many components. Yes, it had a nice transformer.

[@Basement-Science]

Well the transformer is probably the only component manufacturers actually make themselves, and winding it properly is not as easy as sticking in diodes and stuff. I bet none of these workers are taught any electrical (safety) knowledge. You also can't make a Quality Check after assembly without taking it back apart, so even if they were taught, they might not bother doing it properly.

[@brynnond.6952]

13:37 I’ve tested some dodgy QC chargers that I have actually been able to pull up to 35 watts and maybe more if my usb load could handle it which was kinda scary because it was way over its 18 watt rating that was listed on the charger

[@windward2818]

Dear DGW thank you for the testing, but, as you know, the off-line chargers are rated for universal mains, so you should probably test at least at two AC input voltages and frequencies, perhaps 115 VAC 60Hz and 230 VAC 50Hz. Also, I am not trying to be picky, but it could be interesting to learn how the transformer copes with the power extremes, first voltage and then current. I think the metal spacer was for keeping the PCB assembly in place to keep alignment with the power push in pins during assembly. If the assembly moves around relative to the spring tangs it could create a higher resistance connection which may overheat the assembly. The controller ICs seem to be very obscure devices from China, which are only sold in China?

[@armandocaverom.1375]

Congratulations for the video from the safety point of view of the circuit I see that it does not have an input fuse for possible short circuits of the input rectifier diodes due to overvoltage, instead of NTC it uses a resistor, on the other hand it does not have varistor protection, this circuit It introduces harmonics into the network. It does not have power factor correction.

[@tomburnik8259]

First time I see 'self-desoldering protection'. Wonder if it's already patent protected.

[@fruitieplayys9125]

im not here for the video, im here for the aceeeent!

[@anchuram]

Can you dismantle Qualcomm QC gen 1-5 genuine chargers and compare them?

[@GeertDroid]

What country are you in, deciding from your power socket EU type E it's Belgium or France. Correct me if I'm wrong.

[@Madilsharief]

I am very sure that FE5 is not for weight, it is iron that may be used to reduce noise generated by the transformer, the RF noise. So it becomes compatible with some CE or other standards in European countries. If you can check noise level with or without Fe 5 then u may notice that it makes difference.

[@BlackShArk665]

Could you please attach links to the auction from which you ordered these chargers please?

[@ZaneDaMagicPufferDragon]

That chunk of metal is an ingot of probably 5 grams of Fe AKA Iron!!! I bet if you weigh it will be 5 grams!!! I love ❤️ your charger 🔌 tear downs!!!

[@whoam42a1]

Another great video. It seems that there is a lot of dodgy chargers about. how about doing an autopsy on a branded quality one, and see how good they are in comparison

[@avaydon7679]

6:56 That piece of metal [ 5 Fe ] might be used for heat sink as well for the transformer ferrite core.

[@stanimir4197]

While true, it's made of iron (terrible thermal conductivity) and gluing heat sinks with such adhesive is super dumb - as the adhesive won't last for long. That design alone deserves 'extra super dodgy'.

[@avaydon7679]

Well said Stanimir.

[@jdhtyler]

5Fe Motorcycle adhesive wheel balance weights www.alibaba.com/product-detail/Motorcycle-Fe-adhesive-wheel-balance-weights_60816328475.html :-) It must help with the cycle frequency BS

[@ex-soldier4341]

Could be to disguise it as weighty than others