$15 aliexpress 40W USB-C charger test
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- เผยแพร่เมื่อ 9 ก.ย. 2024
- Testing and opening a 40W "GaN" charger with 2 USB-C ports from AliExpress for 15 USD. Is it going to be better than the 3 USD charger?
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its less crappy compared to other chargers and actually seems pretty well built with proper y cap, proper isolation distance, sync rectifier compared to a diode, properly rated, interference inductor, fuse, ntc, chonky FULL BRIDGE RECTIFYA, reasonable pretty nice transformer, insulation shield.... Just sad it cooks itself
Mostly on really high end devices, for most cases it's an overkill.
its pretty well designed, but not the thermal design. It really needs a two switch flyback to reduce losses.
I bought two similar chargers but they came with usb cables so it was a steal, i will use the chargers when i have to charge devices that need 5v and 3a 15w they also get hot when i use the max 20w.
@@liam3284 can you explain on where the flybacks would go. I'm new here
Funny that this is $15, Ikea recently started selling a 45W two port USB C fast charger for the same amount (Sjöss). Supports PD 3.0, Q4+ and PPS. 5, 9, 12, 15, 20V. It's on the US site but also available in the UK (£10) and probably in Europe too. Ikea website says the weight in the box is 140g.
I confirm that in Italy Ikea sells the excellent Sjoss for 9,95€!
Czech Rep 249,- Kč
Ottawa, Canada $17.99 Will pick up one this week thanks to your excellent comment.
Ikea, unlike the Chinese, have an actual ass one can sue. Therefore, their electrical stuff is top notch.
@@piconanomeh, I have a 3 USB-A one from them that died in the first 6 months. The previous version is still doing great
I have that charger and it has exceeded my expectations it worked without issues at all
If you power up the FNIRSI tester by the micro-USB "PC" port, it won't shut down on its own during measurements... 😉
and flash newer firmware :D
How did you write this two days ago if the video was uploaded today?
@@sakurojason Patreon patrons get two days early access to nee videos 😉
The video is basically put in unlisted then into public
I have a FNIRSI FNB58 USB tester that stopped working while testing a charger with the QC3.0 fast charging protocol activated. The charger was outputting 20V with a charging current between 1.5 and 2A. The charger was connected to the USB Type-C input, and the load was on the USB Type-A output.
The tester turned off in the same way as shown in this video when exceeding a certain current, but I was unable to get it to turn back on. I tried with other chargers, but it still doesn't work.
According to the product specifications, it should be able to handle up to 28V and 7A, so I am surprised that the device failed under these conditions.
Does anyone have any idea if this is normal and what I could do to repair it?
I like the fact that the USB connector housing will get so hot that it will sizzle when you grab it to unplug the cable.
It took me a second to realize that was the list of voltages with numbers in front and not 15V 29V 312V
Yes, me too
What about the 1:10 eg 0.434 32 A why there's space before 32 A? I can't decode😂. I get that's 0.434 Amps, but what are those two last numbers in every field?
Some Fnirsi products were made before spaces were invented ;)
@@DiodeGoneWild Maybe the one writing the code had a HP laptop?
I don't get the joke I assume... Did I miss something? @@jaakkolehto1487
Can you please make more vintage device repairs? I love them :)
Looks like a decent device for the price.
Just don't reach the 40W load ...
I mean, for such a little price it seem nearly over engineered and unexpectedly full of decent components.
yeah, it's not really suited to more than 10 watts.
it is a realistic phone charging 40w they phone will only draw 40w for small time then drop to lower as charging continues
@@do2eazy363"small time" well, in this time, the charger will reach 100+ degrees C anyways.
I wouldn't trust that..
@@Versette less power less heat
But than you can’t use it for charging a iPad or a power bank. So it’s useless.
Better buy a Anker or similar good brand charger.
Really love to see you testing slightly "higher end" chargers like this. I actually have one of these myself, so it's great to see that for the most part it's safe and well designed - though clearly not meant for continuous 40W loads. I suppose in its defense one could argue that most USB-C loads (like smartphones and tablets) don't draw constant high currents like that but tend to taper off quite quickly, and at least this isn't quite a laptop charger in terms of output power (or, at least, for any laptop that would draw more than 15-20W under load when fully charged). Those temperatures are still not acceptable, and this really should have had some kind of metal heatsink included in its design, as clearly "sinking" to the plastic casing through those flimsy pads is completely insufficient.
Btw, do you have any plans to test the new IKEA Sjöss USB-C chargers? They're close to this in price, and IKEA chargers have tended to be very well designed previously from what I've seen.
A metal heatsink probably wouldn't help the slightest. The case has the same surface area and that's just too small to dissipate the heat. Bigger housing or higher efficiency would do the trick.
@@DrHouse-zs9eb True, but a metal heatsink would increase the size of the casing as there's no room for one with the current design. And a larger casing with no heatsink wouldn't really help, at best it would increase the time it took to heat up by a few minutes. You need a highly thermally conductive material to get heat away from the hot components and to the outer edges of the charger where it can be dissipated into the air. The heat output of this at 40W is still too high for continuous use unless it had some unreasonably advanced cooling, but even a pretty basic aluminium heatsink shroud surrounding the charger and touching the hottest components inside would lower internal temperatures significantly. Not enough for continuous 40W output, but probably enough to extend the charger's lifetime by quite a bit.
Using a metal shell would require a three prong grounded plug in the USA for safety.
@@d46512 To be clear, I don't mean an *outer* metal shell. Most high quality high output chargers have an internal metal heatsink, which typically wraps around part of the outside, but inside of the plastic shell. No grounding needed.
Ďakujem ti za toto video, musím uznať, že tvoje znalosti spínaných zdrojov sú naozaj na vysokej úrovni. Táto nabíjačka je odosť lepšia ako tá predchádzajúca za tri doláre, aj keď na plný výkon hreje až moc, ale ako si sám povedal, na menší výkon by sa používať dala.
na spinane zdroje ze su dobri na STU az tak, ze si nas vybrali Taiwanci investovat pre tuto obast v EU u nas. Cipy napriklad v Nemecku TSMC. U nas zdroje.
If you want to open this glued connections, it is very easy to break the glue with a slight hit of a hammer. So you do not destroy the housing and you can glue it together again with no damage on the housing..
Do you know about any video resource where the proper strength of this «slight hit» is shown? I fear I'd crush anything with just these instructions 😂
@@riangarianga Squeezing the joint with a vice also usually leads to it popping open. And for the hammer trick use a rubber mallet, then you can hit as hard as you want basically
@@MrOpenGL Ok, thanks! I'll try on some disposable items first. I have both a rubber mallet and a nylon hammer, but still one needs to be careful with them.
@@riangarianga - You should take a old laptop battery or a power supply from the electronic trash and try to take it apart.
For the laptop battery you need more force and it is more difficult. A powers supply you can open mostly very easy.
So use a test-object to learn some skill and then you are able to open neraly every glued connection.
I actually bought like 3 of it's crappier equivalent, just to open them up and get the female USB C ports out, got 6 total with bi-directional power transfer, as these are cheaper than any USB C ports I can get here for tinkering.
Lol what, there are USB C ports for under 1 dollar online.
There are many different variants of these ports. Some are harder to get.
I think Aliexpress watches how ´´DiodeGoneWild´´ dismantles all the transformers.....!!!!🤣🤣...... Great video.
It is 40W. Most phones charge super fast with that power. Its actually unnecessary to leave it for hours with maximum load. I will get hot, sure. But it wont get that hot in a short period of time, at max load. my 45W Huawei charger wasnt even hot to the touch after a full charge on my phone, only if I accidently left it for hours during work.
USB-C can be used for laptops, soldering irons, etc. Not just phones, and those can consume huge amount of power for long periods of time. High quality chargers don't get that hot at max. rated power output. Charger in the video should have been limited to 30W.
@@Alex-mj7kmWell said. It only needs to go wrong once. It’s not worth the risk.
@@Alex-mj7km Yeah, I wonder how difficult it would be to decrease the maximum output.
Guess it depends on how accessible the resistors are.
@@Alex-mj7km Doesnt even need to be limited, some thermal throttling would be enough.
And how much of chargers have a marking about how long it supposed to operate at maximum load?
My smartphone has a 5000mah battery and charges at a maximum rate of 18 watts so I would need to be charging two of them at the same time for a decent period before it gets excessively hot - looked like a good device and worth the money.
Also your phone won't be pulling 18W constantly while charging the battery - typically you'll see the peak power draw only up to 40-60% charge, then it will drop off quite quickly to not damage the battery.
If you are aware of that and would make sure it’s never used above 30W then it would be ok, in theory.
It would be a good charger if those limits would have been built in.
As it is now, I think it’s not worth the risk. Keep in mind that it only needs to go wrong in all of its lifetime.
It’s unfortunate because other than that, it’s very well designed.
@@Conservator. It is unfortunate that it has such insufficient cooling, but also remember that smartphones and other small electronics don't draw anywhere near their maximum charging current for the full charging time. To avoid damaging the battery charging will start slowing down from ~40-60% and go ever slower as the battery fills up. So even charging, say, a phone and a set of headphones, or two phones, or a phone and a small tablet would be fine in most cases. Just don't connect two tablets or large battery phones with fully drained batteries at the same time.
@@Kraaketaer That’s ok if you’ll make sure that no one will ever draw 40W from your charger.
So you should never leave it unattended etc.
@@Conservator. Drawing 40W isn't the problem. Drawing 40W for extended periods of time is. Remember, in the video it was tested outputting 40W constantly for two hours, and while I'm sure it reached the temperatures we saw after far less time than that, I still wouldn't be worried if it was to occasionally output 40W for 20-30 minutes at a time. And no regular use of a charger like this will see it outputting a constant 40W for hours. Now, is it a charger that's likely to last forever? Obviously not. Is it dangerous to use with the types of things people typically connect to chargers like this? Arguably not, for the reasons I've given above. Will it eventually fail? Yes, obviously. Does that make it unsuited for things like charging smartphones? Again, arguably not.
The best adapter featured on this channel i would say
I swear when I get a job I’m buying you a heat gun. That hairdryer can’t be safe.
That mysterious chip should be Meraki MK2697 It's in lots of chargers
Nice video and charger. That 9AWE component was probably (guessing by the logo) ME431 made by MICRONE(Nanjing Micro One Elec).
Not bad if you only use it at reduced load. The problem is if your device or devices are capable of charging at the higher power levels, they'll do it irrespective of the internal temperature of the charger. Besides using chips with some kind of thermal throttling, I'm not really sure how they could reduce the temperature of these kinds of chargers. They're just too small and have too little surface area to dissipate that much heat.
This is ridiculous to see a chip running at 158 degree C. Have you calibrated your thermal imaging camera maybe its faulty or off by some larger degrees. PL check it too. Thanks for the good work.
No it probably is that hot
@@cuf_ Maybe it can double up as a toaster!
@@zebo-the-fat mini stove
@@cuf_silicon decades at like 120C.
Power semiconductors are rated up to 175C, they will survive just fine. It's the electrolytics which are going to die first.
We had a hand blender and its motor burned out. Upon closer observation there was a warning text printed on it, something similar to this: "do not run it for more than a minute". Sometimes you just have to know how long it can be used before it gets too hot.
Yep, just bought a cheap blender, it says: "run for 60 seconds max, then let cool down for 5 minutes"
Makes sense considering it is completely sealed and has 800w motor in it.
To be fair, the thing can do most stuff in under 30s anyway.
@@galaxya40s95They did cheap out on a thermal switch in the motor windings. If it had one, there would be no burn-outs. The whole “use it for 60s” thing is silly when it could be automatically enforced using cheap components.
@@absurdengineering I definitely agree.
But that is kind of what you expect when buying cheap stuff.
Hardly enough money to pay for decent materials, much less for proper engineering I suppose.
And much easier to add a sentence or two into the manual.
But imo as long as you keep this in mind and do not try to use it in professional environment, its fine.
16:34 So true, you go me laughing. Thanks
I’ve never seen an SMD Y1 Capacitor.
Well, you learn something new everyday.
It gets scary hot. Even if it didn't blow up, I wouldn't use such a thing for fear of a fire hazard.
Where was the "GaN" other than in the LED indicator?
The GaN charger was in the video on the ‘65W’ charger.
@@Conservator.I think it mentioned GaN in the product listing at the start of the vid. "Dual Ports 40W Fast GaN charging"
@@JumpingSpiderDesign
It’s in the description of the video. 😉
The primary side MOSFET is a GaN device.
@@CanizaM Tx!
How can you identify that it’s a GaN? Tia
I do have a real usb charger from club 3d with a total wattage of 142W. It weighs 370gr. Thanks for your video!!!
*Very Nice Charger ❤*
How can that output rectifier get so bloody hot for a synchronous one?
I^2R = 2.25*2.25*9mR = 45mW
2.25A max based on 45W/22v, +10% for efficiency
ringing
Even Bigclive could eventually learn to use a heatgun to save the core. What about the 3.3V output ?
Hell nah, i would suggest you all the IKEA 45W Charger, have not fully loaded it yet, but i should do it!
Bravo Hvala vam za svaki video 🙏🏻 😊👏👌❤❤❤❤❤
this charger surprised me because of using quite exotic color of LED and the fact that it looks similar to the "iron-laden" 65w charger it has quite good transformer and claims the rating but not for long
At least they put some effort on it
Sir, you can use Petrol/Gasoline to dissolve the glue and open it, you may not have to cut the box that way
I have a similar one. But i only paid around 5$ it's 35w GaN has a USBC and USBA port and even a small display that shows the wattage being drawn from the charger! For the money it's worth good. Mine doesn't get alarmingly hot even at full load. I even bought another after seeing how good it was.
Here in Thailand the price of this charger is not more than 10 Euro including shipping, not bad.
Looks like a great design, apart from the bit where it is cooking itself to death with sub-par efficiency.
Casually pokes his hand while plugged in 😅
Thanks for your research. I just wonder with what you control the output voltage.
hi, do you build you constant load yourself? may i have schematic and build instructions for that???
Nice 40W... heater.
For a charger bought from Aliexpress, I think it is a very good system.
I would also like to add that review videos of quality chargers are more enjoyable, do not hesitate to raise the bar in the future, I know it will upset your wallet, but there is nothing you can do.
this is funny how well this PSU is made but the only flaw in its design is small overall footprint... It would be decent charger if it was about 20-30% bigger and not this cramped...
got me subbed neighbour!
They probably thought 60° is good. Yeah in °F not °C
Maybe the F got lost somewhere on the way.
Çok meraklıydım❤ biraz endişelendim 🔟acaba bu da diğer iki gibi sarı olup da 45 Watt olan acaba bu da sahte çıkar mı diye endişelendim ama çıkmadı senin 2 videon olan 65 Watt olan ve sarı olan şarj aleti Amazon'da çok ucuza satılıyor ucuz olan şey sahte❌❌ olduğunu gayet iyi biliyorum Çektiğim videoları bize çok yarıyor sayende bilgileniyoruz💯
I wish I could send you my $3 66w charger, it works so well I've bought 3 of them so far, really like to know how they made it so cheap!
please contact me: danyk at centrum dot cz
The real price for this charger is something about 10$ - I paid it and I have 2 of them, moreover I had properly mounted LED in both exemplars.
i love the uab charger videos
Thanks. Seemed ok so I ordered one to try it.
Not terrible, a whole lot better than the last one ($3 "65W") and at 20W or 30W this thing would be fine. Besides, I wouldn't want to fast charge my phone anyway as it will make the battery wear much faster.
I'd love to see the waveforms of a real GaN charger
15:40 you can get two power MOSFET, tank capacitor, 20v+ zener, ultrafast rectifier, centertap the dual primary
And about 100uh inductor
Remove the feed back from the transformer
And use feedback wound on same inductor
Or just regulate power and current on secondary a side, and output constant voltage
it's a flyback so the cheap zvs driver works.
The problem with em back in the day was running over 100volts without blowing up transistor gates
Push 100w and run at half the heat waste
That topology only switches the transistor on or off only when the voltage across drain and source is as close to a possible zero
Could also switch based on when the current across is zero too
Or when the voltage and current cross with effectively no flow of power too
Want a extremely low rds on the transistor
Make sense to turn a switch on or off when no load is apparent
Less work it actually needs and switches can switch faster
Cant have switching loss when the switch hardly sees any apparent power...
Zvs doesn't need digital logic to switch voltage
It's a resonant smps
Pretty much a Tesla coil driver in cw mode but much more efficient
Cover on capacitor was on there for when solder starts melting from operating temperature to keep it in position and shorting to primary 😅
Could you teardown some of the newer ikea chargers next?
Can we still donate chargers to you? I found 3 different 65W chargers from AliExpress for 2€ each and I want to see you explore them
I have a FNIRSI FNB58 USB tester that stopped working while testing a charger with the QC3.0 fast charging protocol activated. The charger was outputting 20V with a charging current between 1.5 and 2A. The charger was connected to the USB Type-C input, and the load was on the USB Type-A output.
The tester turned off in the same way as shown in this video when exceeding a certain current, but I was unable to get it to turn back on. I tried with other chargers, but it still doesn't work.
According to the product specifications, it should be able to handle up to 28V and 7A, so I am surprised that the device failed under these conditions.
Does anyone have any idea if this is normal and what I could do to repair it?
Litzwire, nice stuff as long as it strips with heat alone.
I might get one of those to cook some eggs on.
I am here for the cat.
I wonder what temperature it would reach, if there was bad airflow, such as some clothing on top of it or something
I guess the overheat protection in the primary chip or the buck regulator chips would kick in.
Could you please explain what was done wrong for it to become this hot? Seems to be a half decent build to still suck this bad.
the electrical design looks pretty good, but the industrial designer got the EEs in a pickle with such a tiny space to cram everything into getting so hot
2:27 Maybe not wall sockets, but many ppl use the adaper plugged into extensions likeb you had, so both test would be valid.
Merci très intéressant
Wow a Litz wire secondary and common mode HF suppression between primary and secondary! Chinese quality on the rise!
Curious how the Minix P1 charger rates to you
(AliExpress 65w pd, not the cheapest, hasn't exploded for me :D)
100 degrees and you can touch it with bare hands to open it? Are you sure your thermal camera is calibrated? I have my doubts
I don't touch the hottest spot, and plastic has a low thermal conductivity and capacity.
it was close to death experience
Idk why I'd want to risk it with a 15€ aliexpress charger (other than to have fun with tearing it apart lol), when the anker 65W is like 20€ on Amazon and smaller lol
Zaťažovanie nabíjačky trvalým výkonom s tým, že jej celková spotrebovaná energia presiahne 4-5 násobok kapacity batérie v telefóne je overkill. Skúšal som nabíjať notebook cez obyčajnú xiaomi USB-C nabíjačku ktorá mala 65W výkon a ten notebook sa behom hodiny nabil na 100% bez toho aby sa nejako nabíjačka prehrievala. Skúsil som to druhý krát s tym, že hneď po nabití notebooku som začal nabíjať 20Ah powerbanku ktorá podporuje PD nabíjanie a čudujte sa, tá nabíjačka bola natoľko chytrá , že keď sa začala prehrievať, sama znižovala nabíjací prúd lebo sa mi tá powerbanka nabíjala asi o 25 minút dlhšie ako obvykle. Keď tá nabíjačka zvládne trvalý výkon 40W po dobu 30 minút, tak je dobrej kvality aj keď to je čína. Skoro všetky telefóny s podporou PD sa nabijú zhruba za 30-40 minut pri 40W. Samozrejme že 40W berie len v určité momenty kedy teplota baterie nie je nad limitom tepelen ochrany. Snáď každá jedna nabíjačka bude mať vnútornosti horúce nad 100 stupňov keď ju budete trvalo zaťažovať 40W na čo vôbec nie je stavaná.
The best transformer i guess..!?
Definitely the best transformer outside the EU market.
Does the flyback transformer in a CRT TV or minitor worn in DCM or CCM? I never had an oscilloscope and a high voltage probe to check it. What about the self-oscillating 2N3055 circuit used by hobbyists?
I think its CCM, been a while since I saw a CRT
I wonder if there are any USB-C supplies from Temu or something that just common the two USB ports together rather than use independent DC-DC converters or transformers? That would be interesting. Plug in your laptop and your 5V power bank at the same time and get flames. Technically two different devices would just cause a data conflict when requesting the voltage, but I’m sure they’d find a way to make it “work.”
Thats good enough for me !
This looks like a pretty nice 30W charger. Shame they chose to run it at 40W.
I wonder how you do t get shocked by primary side caps xD
So it delivers the power but on cost of lifetime and safety🥵 At first I wondered why it was that much discolored, maybe exposed to intense sunlight, but after your measurement of 110c question is answered😂
I guess they come up with product names by tripping over a keyboard? What a time to be alive.
AI possibly
@@liam3284 I don't think AI is needed to come up with something like IRGAGEYYFH 😂
So its made to be functional and reasonably safe. It is just thermally designed to fail not too long after purchase. Ensuring the economy growth.
No way that IC was above 150C.
Calibrate your thermal camera.
Switching controller ICs always have built-in thermal shutdown.
There's no way that was 158C.
Seems like it would be a really nice charger if it didn’t get so hot.
First one i see ot super or dodgy. I wuld actually buy this thing.
I'd be interested to see how clean the output is.
Unbelievable, you found one which actually provides what it claims. Disappointed by 2 minutes in as it appears to suffer intense heating. Too hot to leave plugged in unattended. It will have a very short life.
where are you from ?
Its a nice design, but like most of these they require some heatsinking.
ok design, management probably skimped on quality components and heat sink.
give thanks
Can you do a teardown of 33W and 67W Toocki chargers? They're dirt cheap and according to TH-cam reviews they perform very good?
How to donate device for testing?
nice
preprogrammed failure due to very high temperatures BUT NICE theoretically DESIGN and poor realization .
Litz wire, not really Litz, but interesting they actually went to the trouble of a multi-strand insulated wire to reduce the skin effect. They made a good try, but no cigar.
that poor poor heat gun, it gave it's life to let us learn
Seems like it could have been a good PSU if only they hadn't tried to fit it all in such a small box.
THEY KOME.
ARE.
...ING.
"Slightly Dodgy"! now that is a metric I can grok! I am not being sarcastic.
These types of engineering are why when you scale up the voltages and current will burn down your house.
I wish you would bust some battery AC inverters, those seem to be some of the scammiest products
I got one too. Overheats too much