Baseus 65W GaN³ Pro USB Charger Failure and Repair

[@temtaime]

Tips: don't desolder parts if you are not 100% sure that they're the cause(like mosfet in this video), use soldering iron instead of hot air gun so you don't damage plastic parts that are placed nearby(6:40), don't use soldering paste if not needed, use solder alloy instead, also don't heat up soldering paste without a placed component(wtf was 5:03?).

[@xxtherichtum1xx551]

the same that i thought, but i will add another tip...Dont introduce a high voltage like 12V, with just 1 or 2 volts and high current it will be enough to find the problem. If you put 12V you can damage IC's or even the PCB with the temperature that the damaged component can reach.

[@kepler_45]

Poor IC

[@socatekun]

Pro tip, voltage injection is done with low voltage , 1-2.5 maximum 5V, due to components like IC's power not been rated for more. overvolting some IC's can lead to false positive result aka heating up as they would be faulty.

[@ErCanEverything]

Thanks for the information, I appreciate this❤️🤝🤝🤝

[@AKG58Z]

Yes your right but that's why he injected that voltage at the output where it's normal to have higher voltages right.?

[@Boffin2002]

Injecting that high voltage even where a high voltage is expected during normal operation can have an adverse impact if there's a fault. A lower voltage would still show up the short circuited component under a thermal camera or evaporating alcohol. The benefit of injecting a lower voltage is that there is less risk of damaging other components and PCB tracks. You still need to be cautious with the voltage and current limits that are set.

[@socatekun]

@AKG58Z No, usually you apply a lower voltage on the main supply for ICs, infecting from the main output backward it might cause more components to fail. When I look for faulty ICs, I inject the minimum voltage for them to power up.

[@Boffin2002]

Correct - I agree that you would normally inject from input to output, I was specifically referring to what was being done here. injecting backwards is where you MAY cause additional problems if you inject that high/expected voltage. That’s why I suggested using a lower voltage if that’s what you were going to do. From input to output is different as you've noted but being cautious won’t cause too many problems.

[@DjaniAgain]

Awesome job on your side Brother! This saved another 30 Euros! Also these chargers look nicely built, I'm impressed, as I have similar one for myself 😅

[@ErCanEverything]

Thank you Brother🙂❤️ I did not expect to occur such problem in a ceramic capacitor at all. They looks so innocent, you can't believe they would shorted🤦

[@DjaniAgain]

@@ErCanEverything I am watching these kind of stuff sometimes, and believe me they are not so innocent 😂 I was thinking the same, capacitor what could go wrong with them 😅 but every repairman checks them in their videos, and surprisingly in most times they are the culprit 😁 Also the voltage injection was a great idea!

[@madrian_hello]

Nice build quality from Baseus. I am a new subscriber and I love your videos.

[@ErCanEverything]

Really is a perfectly builded charger, Thank you my Friend🙏🙂🤝

[@goku445]

Why are they failing then? :'D

[@sirbadios5]

​@@goku445Well, nothing lasts forever..

[@goku445]

@@sirbadios5 for sure. the question is how long is acceptable for this kind of product. I would expect 5 years to be the minimum.

[@AKG58Z]

I had a kuula 65w it failed I open it and saw burns everywhere the main switching transistor was shorted as well as 4 resistors going to on it it's pin and then I started to check every smd capacitor and found one shorted at the output near type c jack/inductor I removed it and the transistor now the short is gone but I will have to replace these 3 things without knowing the other components condition so I didn't repair it, it shouldn't have killed itself if the output goes short due to the fact that it was not built right I didn't try to repair it. Great video by the way I like these kind of things alot.

[@jstro-hobbytech]

2 questions if you don't mind. What kind of probes are you using. Test probes. Your honest opinion on the larger finrisi cordless scope. I need a cordless scope but can't afford micsig prices when I have a super expensive rigol corded one. I'd rather pay 200 for a tablet scope then buy differential probes to protect either of my scopes.

[@goku445]

Thank you for the video. Would you say this power adapter is well built? I'm debating what to buy..

[@ArifKamaruzaman]

Nice equipment. But why the hot air?

[@memelovly86]

I like your videos,very interesting content

[@ErCanEverything]

Thank you my Friend🙏🙂🤝

[@danydm5891]

Fine job.... You should have to consider to buy a fume extractor. Soldering fumes are very harmful..

[@aissembenderradji2481]

Hi I have a baseus 140W charger and there is a supply fault 380v I smell something And now the charger is not working What are the components that can be out of service so i can buy and change them

[@obelixer9751]

How is the isolation from mains?

[@TanvirKabir0461]

Great Job.👍

[@AntonioOliveira-xj5om]

Good! All the best! Once again excellent video! As you suggested, when the “soft starter” for 20v with MOSFET for 20v DC angle grinder powered by battery with brush motor from Einhell, mod: TE-AG 18/115 LI, which burned the controller? I would like to know if it is possible, as I said, to present a schematic or create a circuit with said MOSFET for this purpose? Thank you very much, hugs!

[@ErCanEverything]

Thank you my Friend🙏🙂🤝❤️ As I understand you want me to make a simple circuit for soft start with mosfet or am I wrong?

[@AntonioOliveira-xj5om]

👍Exactly, please. My angle grinder burned out the controller, which is almost as expensive as the complete machine. When this peak starting voltage is turned on, it activates the 20v battery safety and it turns off. Thank you very much, hugs!🙂🤝❤@@ErCanEverything

[@철가면-o3l]

고장난걸 수리하시다니 대단하십니다.

[@fndrsm]

What the function of the first yellow metal shell? Ground or kind of Heatsink?

[@davidlguerr]

Heatsink, but it is also grounded.

[@Vintaginside]

EMC shield.

[@goku445]

I don't think there is a ground connection on this device.

[@davidlguerr]

@@goku445Ground is the same as neutral on this device.

[@goku445]

@@davidlguerr Do you think adding a real ground would improve security?

[@DonnyKurnia]

I have 3 gan charger that failed, and I suspect it's the same problem. Looks like I will need to get microscope and the hot air station to get it fixed by myself 😅

[@ErCanEverything]

🤦😂

[@AKG58Z]

Yeah bro but it will be an expensive investment if time and money if you don't do this at regular or did money.

[@DonnyKurnia]

I'll put it in hobby expenses 😅

[@goku445]

Would you recommend this charger?

[@AhmadSILAp]

@@goku445no

[@dy.experiments2826]

How to know the value of smd capacitor as seen there is no color coding?!

[@AKG58Z]

You just have to take a guess and replace it with something of the same size it's the easy way. The hard way is to have a same working circuit take the capacitor off and measure it with lcr meter.

[@davidlguerr]

In that specific case, it would have the same value as the neighbor capacitor (the larger one). It can work without that capacitor, however it would stress the other 2 as they are in parallel, and they would fail sooner than expected.

[@AhmadSILAp]

I couldn’t remove the board from the USB, how did you remove it?

[@ikawati9668]

where can I get or buy this item mosfet LH062N100?

[@ikawati9668]

please help

[@rkshovon]

so i am not a fan of your soldering , but its a good video.

[@EasyOne]

nice

[@AHMADSalimi-h2m]

thanks veri good

[@3ffrige]

Wait. How the heck did you open that with a hammer and a blade? You mean I can just whack it with my hammer and skip the whole Dremel tool drama? Edit: wait. How the heck did you manage to desolder the USB board so cleanly? You make it look so easy lol Edit (again): wait. How the heck did you find the value for the shorted capacitor? You can measure capacitance of capacitors if its shorted? 🤯 Edit (agin again): disregard; you mentioned that the capacitor was fine

[@Anuitu2u]

Did you find the trick to open it? I literally tried the trick from this video, and it's not as easy as in this video.

[@ErCanEverything]

@Anuitu2u It's not as easy as in the video, but it's the most effective way.

[@YeahNoTellTheTruth]

I can't see 100% but very unnecessary risk with plugging in and also connecting usb with it powered on, your fingers are very close to high voltage, this could have been done switching it on and off after. Maybe you did it because you're recording, but viewer should see your safety first. Maybe this is ok, but other cheap products are unsafe. Just my opinion.

[@Sunstepa]

I notice that too. ✌️

[@FixitEasyDIY]

[@ErCanEverything]

Hello my Friend👋👋👋

[@Buciasda33]

I don't know about that low melt solder paste. Especially in Power Electronics... Everything else looks good.

[@martincerny3294]

I don't like this sloppy use of paste at all. It makes tiny balls that float everywhere, can short stuff and overall it's just nasty. Just add some solder, some flux on the pads and reflow. Worst thing to do is combine flux and solder paste, that's just hot mess.

[@Anuitu2u]

0:18 Anyone, how to open it? I don't want to break it. Please give me some tips...

[@Andrey0I]

6:44 тут то зачем было феном паять!?

[@d1fiatdoblo1.9jtd]

Dayim kolay gelsin

[@BigEightiesNewWave]

It's always the caps, damaged faster by shrinking devices, they run hotter.

[@zebooka]

Mine is charging, but only with basic voltage/current. As soon as QC starts rising voltage it just turns of and fails changing. Then cycle repeats - restart, try to increase voltage, failure and reset.

[@HendraHamsa]

Same as mine, but if u use 2 port (usb and type C) at the same time the charging proses was normal. The problem will came back if u use just 1 port either usb or type c.

[@nelsondays]

Круто!!!

[@1x2bb]

I think buying a new one is more worth it than repairing it. Because my skills aren't that great.

[@ErCanEverything]

🙂🤝

[@tatcathudientu]

Waiting for this 2 year ago 😂

[@nursaitaksu-yt1nr]

👍👍👍👍👍

[@ErCanEverything]

🙂🤝🤝🤝

[@DaEskahuit]

easy fix

[@cj9262]

Just bought one for S$15 on offer on Lazada, not worth the time repairing. The cost of the components comes close to half the purchase price.

[@TheChineiz]

Esse carregador é descartável.

[@LordGryllwotth]

I got a 65W different build. Gets very hot during regular phone charging. Touch screen doesn't work during charging. Purchased from Ali Baseus store. No guarantee. I do not recommend.

[@beycanali]

😮😮😮

[@tangoalpha8381]

🏆🏆🏆👍👍👍

[@mikegla1746]

alright i will just buy new one then.

[@zufarmustapov]

Как такой бренд baseus можно убивать , у меня но нейм китайский подделка работает 4 тий год заряжает повер банки и не сломается не сгорает работает а бренд так быстро умерает

[@zindan2698]

👀👀👀👀👀👍👍👍👍👍👍👍👍

[@dinarov3265]

Все есть а опыта нет жаль 😥.

[@enickel]

I don't recommend this charger. I have issues in 3 of 3 units over time.

[@fama2402]

🫡👍👍👍👍🤝

[@ЮрийВасютин-д8г]

Стоимость зарядного устройства - 2 доллара. Какова стоимость произведенного ремонта?

[@appbox8754]

Ну во-первых не 2 а $25. Во-вторых стоимость ремонта 0, потому что он сам это сделал 🙂

[@vladimir-dxdx7653]

2 долара стоит зарядка подделка на 1 ампер. Тут фирменная дорогая зарядка. Одна плата с кучей элементов.