Dangerous USB phone chargers 5 (Quick 18W QC 3.0)
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- Опубликовано: 28 авг 2024
- 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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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 🤡
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.
@@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.
@@davidbass6780 new, of course my friend
@@windshield11 Freshly desoldered from a new shipment of electronic trash :D
@@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.
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.
it is probably a reinforcement of the housing so that it does not break under pressure
@@ccc5226 no, its there to increase weight
It's quite incredible that they went to the effort putting that weight... Doesn't matter when you buy online !
When I have seen it, I am left with the face, which I just saw WTF.
its probably to balance with weight of transformator
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!!!
Nice video quality! The 50fps really do make a difference
Yeah noticed it immediately.
If you don't move the camera it's not that important
I noticed it by his hands
Holy thats what i thought
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
I've been needing a good "bloody hell!"
Stay safe and keep up the good work!
That sticky piece of metal is a wheel weight for a car!
Yup, now it’s the “make it feel like quality” weight for power supplys 😂
@@tronixfix is that you the console repairman?
@@ex-soldier4341 yes and no.... i think you meant Tronics Fix, even though i also repaired x360 back in the day 😄
It's LEAD
6:54 BRUH, it looks as if they've put a balancing weight for car tyres in the charger
Looks like the ones you put on aluminium rims. Weights 5g.
That’s hilarious 😂
Bloody helllllll...
I've also recovered a similar looking, also so marked weight from an inexpensive gaming mouse. It was really an improvement without it.
@@kjur18 yes thats wiiird 😂😂
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.
true
Yes I see it
"5Fe" is 5 grams of Iron (Fe). It's a wheel weight used to balance wheels.
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?
@@mernok2001 It does not matter. The point is they added the weight to fake consumers. Shady.
@@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.
@@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?
I'm surprised they even put real iron there and not some plastic weight.
Nice video! I like the 1080p 50fps resolution. And I can't wait to see the teardown and schematic of the 1000W PSU:)
Roses are red,
Voilets are blue,
I love these kind of videos,
Thank you.
I wanted to see the time-lapse of the rectifier desoldering itself.
The load is too heavy, I'm outta here.
I wanted to see the rectum-frier in slow motion frying the rectum. xD
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
This should be a permanent series in your channel. I can already imagine something like:
DPC Season 2, Episode 1: Samsung Edition
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
I was wondering this, too.
The quality is great, crisp 1080p 50fps and the sound is very clear too. The last 2 ones are a great value for diy, if you need a small power supply for something you're building. Especially the second one, if you got the time and knowledge, you can easily un-dodgy that transformer.
19:18 Finally new grade: Slightly Dodgy
Beautiful high quality audio and video!
I also really love all your work, but tearing down dodgy stuff if my favorite. :)
I love this dodgy chargers series so much!
But i am still waiting for the schematic of the 12V 50A power supply
16:11 There is an "X2" mark on the capacitor. I think it's the class.
Oh no... it was supposed to be Y2, not X2
yes and class x2 can safelly use as y class capacitor
@@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.
yeah that cap looks to be an X2 rated safety capacitor. It's not Y1 but at least it has some safety rating!
You cannot replace Y capacitor with X one. X don't guarantee to fail open. Failing short circuit could lead to electrocution
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.
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.
3 there is radioactive waste melt inside lol
Flooor is meltiiiing.... Flooor is shakiiing the whole rooom is shakinggggg... only legends remember
EVEN MORE SAAAALT!!!!
@@andricode xd
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.
🤣🤣🤣🤣🤣🤣🤣
Hello Sir DiodeGoneWild. Nice video. That giant blob of metal is probably a heatsink of sorts for the transformer..
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... 🙂
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.
8:10 LOL you sounded like a food critic there :)
0:07 The accent is killing me :-D
2:37 The tester mode is on QC2.0 , you should swich to QC3.0 for current testing！
Doesn't that mean the charger is only QC2.0?
@@chunkychuck No, because the tester doesn't have QC detect feature , so it needs manual to swich
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.
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.
this 5Fe thing I think is a balance weight for wheels ;D
It is lmao
5 iron
These weights are also used for balancing RC airplanes. They already come with the double sided tape.
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!!!
"It is another self-melting design". You have to love this guy !
im not here for the video, im here for the aceeeent!
Hello, I really enjoy your videos, some of the best content on RUclips. 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!
@14:50 - that charger also had a definitive 'SNAP' of inrush current (visible spark as well) leading me to believe there was some filtering.
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
I'm loving the new video fps, makes a huge difference👌👌
Would love to see a test of a charger that costs much more. Like the one i use: Baseus 65W Charger
exactly.... i also have one but a 24w .but it can deliver what it claims..I think you have the GaN charger PD right?
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
Also stock chargers from reputable phone brands. I wonder if they have better transformer isolation.
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.
i can't stop laughing hear your voice 😍 love it
What kind of creepy scotsman ist this?
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
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.
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.
Very nice explaination, we such smart youtubers for new era
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.
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.
The metal piece is a wheel weight for alloy wheels on cars when you balance the wheels after changing the tyres.
These videos are awesome. I gotta ask though, respectfully, is this his normal voice and cadence. Obviously English is his second language but that tonal variance and cadence sound almost comical. I just have to know because these are unique characteristics that I’ve never heard through all my travels around Europe.
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.
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.
Let's plug it in!
No explosion... 😂😂😂
Great video quality! I'm surprised that you can get real fast chargers for that cheap.
I was waiting for a DGW on how those quick chargers work and how different they are. I learned a lot about SMPS here!
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?
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.
Yay, another episode of Dangerous USB Phone chargers! :)
6:54 That iron bar will make it much more powerful
In what?
In weight🤣
Back in the olden days, when power transformers ran at mains frequency, there was actually a reasonable correlation between kg. and VA.
if you compare this one to old transformer this is like having big core but small winding
they think they put the iron bar there for better magnetic shielding lol
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 :)
Your videos have scared the crap out of me. Now I only use expensive Apple, Samsung, and Ikea chargers.
Those crazy Chinese are at it again. I love the metal sample that the one charger includes. Fe!
Finally camera and PC upgrade.Keep up the good work!
Load system for charger voltage is nice👍
Thank you 👍
Pet your cat.
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
what about fixing those? like making all of them the right way, like fixing safety issues, overheating, making them be more powerfull, adding capacity, making it heat less.
Like really, last one was nice, you can probabbly fix it and make it be a great charger to use. it willbe nice to see!
Slightly dodgy is the winner 😁
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).
Bloody hell , he's been out vanting the galley's
Thank you for going into all this detail, you make very good videos.
6:56 That piece of metal [ 5 Fe ] might be used for heat sink as well for the transformer ferrite core.
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'.
Well said Stanimir.
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
Could be to disguise it as weighty than others
You should purchase a megaohmeter to test insulation of transformers
21:55 It's only designed for one time use...
Fúha. Nový upgrade kvality 😍
Please go for 60 FPS videos because noone uses 50 Hz screens anymore these days.
I thank you, nice work.
Imagine when he starts verifying the power factor of these things ("bloody hell...")
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
It has two massive smoothing capacatooors
a had a few of these here in brazil, but they are even worst, cause they had a chip just to tell the phone that is a "fast charger" but does not do any voltage regulation. the chip was not connected in any way to do regulation, just "fake info". It was a fixed 5v charger...
Danger Will Robinson... Danger.
It's all very dangeroooossss
Really digging the high frame rate video.
Congrats with your new computer bro!
Damn, that is an impressive disclaimer at the start. Like.
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.
The 5Fe block is used for balancing tires on a car.
It's a very nice video I really enjoyed everysecond of it...
I wonder something: do you scrap the capacitors, usb ports, transformer cables etc. when you disassemble these chargers or throw it in the bin?
For a better review, you need ir thermometer, to check the actual temperature during burn test the chargers
Smart man, thank you so much for sharing....
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 ^^.
LOL! It is a balancing weight for wheels 5gr and Iron.
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.
Very Cool...Let's see How Dodgy they are...
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? :)
Very good accent and which country are you from? You are too good with this new language!
He's from Czech Republic.
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
Your voice reminds me a lot of Chills.
23:56 Didn't you know, the self de-soldering by overheating is an intrinsic safety feature. Not sure if I agree with the dodgy rating here. 😁🤣😁
I just enjoyed his English❤😂
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.
Shame that they cheaped out on the CY1 cap and the transformer on the first charger, otherwise this is probably one of the better looking ones out of all the dodgy charger series. And the tire weight... lol xD
The last one is super duper doggy....