Dangerous USB chargers 16 

The fake volt meter is truly astonishing. The length some of these Chinese manufacturers go through to scam people is almost admirable, if not baffling.

The fake voltmeter is surprisingly accurate, and the lack of voltage switching is an intentional feature to prevent you from baking whatever is connected to the other ports 😂

Man, fake tweeters already drive me nuts, that fake voltmeter is something else! Keep these awful power supplies coming, this never gets old!

A fake voltmeter? I'd like to say I've seen everything now, but I'm sure there's worse to come.

I once was in a public electronics school, and they gave us the colorful fake iPhone charger to power a diy project... When I reported how dangerous it was not only did the teachers just not understand how a flyback power supply works at all, which is pretty worrying given the fact that this very school delivers a certificate which then allows you to work as a professional electronics engineer, but also they told me to stop saying such things because it got the whole class scared. So I thought maybe I had made a mistake, and these chargers were actually safe, so I opened one up to see for myself. No isolation distance no fuse or filters terrible transformer isolation 1KV capacitor no chip in the primary side good job

That fake voltmeter totally cracked me up. Damn😆

"Cauton Far tndoar ueo only." It looks like they copied a low resolution image of the genuine version then opened it in bad optical character recognition software and couldn't be bothered to correct it.

Completely wasn't expecting that with the fake voltmeter. I was just thinking what a cute and useful module to put in something else, and then... 😵‍💫

I'll NEVER get tired of this series! It's so hilariously informative! Keep up the great content!

Awesome thermal cam recordings! Couldn't wait to see the thermal readings of these dodgy chargers ever since you got the cam :)

Loving this series, and love seing it get more and more interesting with all the new equipment I remember when you would just load them with some power resistors, now we get a very nice look at the currents, voltages and even temperatures with the thermal camera! Very interesting to see, thank you for making these!

Hahahah i love that "5.2 volt meter" more then i would have imagined 😂 what a effort to spend a few cents extra to hadrwire a display to ALWAYS display 5.2 volts, also that they used a chip between the data pins instead of cheap resistors is also a lot of effort they put into a scammy product and using the capacitor pins pointing towards each other creates a nice spark gap, and that isolation melting is just hilarious but also dangerous

Great to see you again! I hope you are doing well. Keep up the great work, from your fan in Australia :)

I love this series! Great job

Wow, i'd love more videos like this, the level of detail of your explanations is incredible

these videos never cease to amaze me, because as technology and mobile electronics evolves, the chargers also evolve, so does the dodgy chargers in order to chase the market

I might have rated the second one as super dodgy because of the isolation distance on the board, having ICs that are baking themselves, and more importantly, because there are two capacitors that are touching each other, with each connected to a different side of the board!

Interesting to see that they're actually getting better visually. if not technically. Looks like they learned about isolation distances on the PCB, the slot in the second one is surprising. I remember when the super dodgy rating used to be for the ones with

"Great job, guys!" 😆 Another great video, thanks a lot!

Another excelent engineering example. Those videos will never get boring hah

Has an easy way to open this plastic glued covers... use banana oil (sold here as nail polish remover), spread over the junction, wait 10~15 minutes and hit with a screwdriver handle to open, work very well

5:22, no, it's for spark gap function 😂

Vďaka za takéto videá, ktoré ukazujú skutočnú "kvalitu" niektorých čínskych noname výrobcov. Ten voltmeter tiež pobavil.

0:30 - I received the US version of the same charger with a used cell phone purchased off Amazon. It appeared to be unused (seller probably got this crap for free, tossed it in with the phone and kept the genuine LG charger for himself) and it is STILL unused. Looks like I made the right choice! 12:18 - 92°C is just shy of 200°F... That's some SERIOUS heat!

6:27 it's not just a fake voltmeter... It's even a damn fake 7-seg display... 😂😂😂🤣🤣🤣

Wow: lacquer and capacitor paint as the thinnest layer in the isolation. I do so appreciate these destructive teardowns. Name and shame the brands and sellers.

I like these usb charger videos for some reason the most haha

that 5.2v hardwired 7-segment sure is funny

Wow, what a compact 5.2V constant voltage regulator! In a two pin package too! They never stop surprising us in China! 😃

You are displaying a lot of care for public safety. For that alone, i salute you Sir, and in addition, I am subscribing.

Your accent. It’s the most unique I have ever heard.

This is why I always only buy Belkin, Anker, Apple and Samsung adapters 😮

I think I’ve seen everything now after that fake voltmeter. About the only thing left now would be for them to come out with a charger so bad, it would cause breakers to trip, wiring to overheat, and finally earn an Ultra Dodgy rating lol. An idea for Ultra Dodgy would be red text on a black background, and skulls on both sides as well as flames.

Talk about threadbare pcbs. You can always tell by the weight as well if it's gonna stand up. I test all my new ones as well. Great video Dan

During early 90s, 386, 486 assembled PC cabinets had 7 segment display on front panel indicating operating frequency. One could configure its jumpers to display CPU clock frequency, anything from 00 to 99 MHz. Assemblers used to scam gullible customers by giving lower clicked CPU but with the display indicating higher frequency

That green film capacitor in the second supply is a dead giveaway for a low quality and questionable safety power supply. Over the years I have taken apart a lot of power supplies, and I have never seen those green film caps used in anything but garbage tier units.

Mocking the print, and using a "certified" device with a "Sumsung" in it. Ah, yes, the good old *Sumsung* smartphones.

"so today let's explore some potentially hazardus electrocution house burners" got me on the floor

Nice video. What do you think about showing the brands of the electrolytic caps and measuring their ESRs?

I've never been so disappointed... That little LED voltmeter looked so good in the thumbnail. I'd like to see inside the potting now to see just how little there is in there.

Wow! He used the soldering iron instead of the soldering gun!

They managed to spell just one word properly: _Fart._

If you hate someone in your life, gift them one of these.

Thank you for another hilarious and informative video.

The analogue paper display of your homemade bench power supply just made me wet myself laughing. As long as it is calibrated, safe and accurate and you are happy with it, all is fine. Just made me laugh is all. 😆

You can often open these with a Big Clive vice of knowledge...... pop it into a decent bench vice and they usually pop open, sometimes quite nicely and sometimes somewhat destructively :) thanks for the great videos.

Great video!

I love that fake voltmeter more than I can say

5:50 I laughed at this part.

Love this tear down revelation, thank you. Of course your thermal cam is Chinese as well.... ;-)

Amazing! There's someone manufacturing and selling fake voltmeters and someone else buying them... That's so China...

5:52 this truely gave me a laugh 😂😂😂 a fake voltmeter??

That first one, the 7 seg display made my day😁... oh and the spark gap saftey capacitor leads, and of course the auto transformer 😅 super duper dodgy

They can scam people like this, but can't use Google translate!!

Danny, Love how your cat knows best.

4:28 The S7302SL using the auxiliary winding for feedback, so it would be regulated even without an optocoupler. There are also designs where neither an aux winding or a opto, like the LT8301. The fake voltmeter is very wacko.

Nice, what a wonderful electric shock!!

Black is cool: Timed death trap with inbuilt precission multimeter!!!

thanks for the explanation, appreciate it mate. what a beautiful cat.

Danke! Thanks!

That LED display somehow attracted my attention, I would like to see the autopsy of that thing, because. Does they hardwired the seven segment LED display to show 5.2V or they just used one or two LED and blocked the light to dark segments using some material?

I use the black one for about 3 years now 😊 Edit: Mine has no display, but will charge iPhone fast, probably 2,4 A. SDC-001 is the part number. Also had a charger with (really) working voltmeter but a capcitor exploded one day. After replacing I found that it gets really hot, so I didn’t use it anymore If you want I can send you the chargers when I‘m back home

13:24 Bro, I have watched your videos since 2019. Loved your presentation skills 😊. Please make a video about Type C connection protocols and its using components. (Its Hardware side) I really need a ground level class from a tutor like you. please make a video. Request from an Indian viewer.

I saw your videos earlier and given the accent I assumed you must be from Central Europe. And it hit me up when I heard "To je úplně na hovno" in the background @ 13:45.

Wasn't there some kind on QC 1.0 nonsense that was 5v with with amperage ? (not that it can actually do 3A)

I like you accent more then the video itself am not even kidding am serious. You are fun to listen to and in a positive way

What's with the hacksaw, you have a perfectly good angle grinder...

The small, 6 pin IC on the USB bus is just a TVS diode pair, not an actual active device

Thank you

can you make an original apple charger 5w teardown video?

"nothing has exploded" What a achievement

They can make better chargers if they try, shame they have no morals. Stick to known brands and good suppliers. Your cat could make a better charger :-D

Someone needs to send an IKEA model just for a change… those look NICE to me

That fake voltmeter is amazing And your cat is right. be careful with your new soldering iron as it can easily became a house burner

That voltmeter is good for a cheap price but not included in chargers!

Two shocking examples of bad design.

Oh Yes a new video 😁

Strange secondary design, first time I see this "mirror" winding

I love it good 👍

Thank you for revealing this. That voltage indicator is a real joke; it's just a display. lol Unfortunately most of no name (or fake name) electronic equipment are made in China.

05:56 😂😅 what a joke 😅

How do I open it? Next second: grab a saw-blade XD...

Even that one word is missing a character "i" , no one proofchecks these 😂

My money were on the "voltmeter" being fake right from the start.. :)

1:59 “How am I supposed to open it?” Well, that was a quick answer.

Fake meter make me laugh for few minutes 🎉🎉🎉

Anyone know where to get the nice/slightly dodgy/dodgy/super dodgy graphics from?

i had the black charger, it exploded with a loud sound yesterday, i think it was a capasitor that exploded, the reason is that i didn't know what exploded, and there was no smell in my room, and when i went to charge my phone, it showd "charging" for 2 seconds, and then stopped, that is when i knew that the sound came from the charger and a capacitor was most likely faulty BTW, the black charger i had came with a fourth port for quick charging, but everything with the writing is 100% the same

Excellent ❤❤❤

I bought the white model from a fleamarket and home when I inserted it in the socket, it blew.

First video for me on this channel and my first visit. Awesome detailed review showing chinese craps. Liked and subscribed! Greetings from Romania. Keep up the good work. I plan to buy a charger for my Ni-Mh charger (Xtar VC4SL), the Xtar company does have 2 USB chargers, one is 5V 2.1A and the second is a quick charger 5V 3A QC 3.0. The Xtar chinese company seems to make decent Ni-Mh battery chargers and I'm curious if their USB chargers the 2.1A and the QC3.0 are decent enough. If you can test these 2 Xtar USB chargers it would be interesting, because they claim to be a serious company. As for charging my phone i use a DUX DUCIS 5V, 2.4A, 12W, 2 X USB. I dont need to be a QC3.0 (3A) and it becomes warm enough but not very hot. I don't how good it is. I wonder if you tested this DUX DUCIS with 2 USB slots already, or if you can in the future. Most probably for the Ni-MH battery charger i will buy a 2.4A USB charger because im not in a hurry to charge at 3A even if now at 2.4A it takes me 6-8 hours to recharge a AA Ni-MH battery of 2600mA, and the most IMPORTANT , charging at higher Amps it wears faster any kind of rechargeable battery and shortens its lifespan. So even if a USB charger is 3.0 quick charge at 3A and even if it is a serious brand i still don't recommend it. The slower the charge and the lower the Amps, the better. It will maintain a longer lifespan on a battery. True?

I wonder if both of those supplies were trying to use the synchronous rectifier in CCM mode given it doesn't do any better than a regular diode in terms of heat.

The synchronous rectifier chip bakes the senondary capacitor to a CRISP 😋💀

I dont think I can perfectly understand evry word? But This is a really good video. Christ that fake voltometer really pisses me off too much!

03:53 I'm guessing they meant to use thermal pad, but none were thick enough so foam tape will do. Then you can immediately tell it was a fake display/meter because the proper meter would turn on only when load is connected.

5:56 Naiiiizz . Yes, I was laughing about this 😂😆

The amount of tiny transformers you open up what do you do with them i bet you got a box full 😂😂😂 send em to me 😜

Don't you just love how eBay will sell non-compliant fire hazard death devices but when it comes to bolt-on car mods, they kowtow to EPA, regardless of if the car is for off-road and racing. People's lives and houses are less important than negligible emissions contribution, especially compared to other industries like resources, military and aviation.

Hello. Can you test Chinese super VOOC chargers that are originally from OPPO (I read that are all fake)? Where do I find a super VOOC charger not OPPO original? Thank you.

Very good sir, very good information, good day sir.