Dangerous USB phone chargers 9 (with high voltage test)

Examining two pieces of dangerous fake cube shaped USB phone chargers. Let's test them and see what's inside, plus a high voltage insulation test. Some chargers may not comply with safety regulations and they may cause an electric shock or fire. Their current rating may be fake, the output voltage may be wrong and they can damage your devices.

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[miscojones]

I'm definitely gonna need more high voltage testing :D

[stefflus]

What a fantastic sequence of failures, fully as expected.
So rarely caught on film, happening slowly, and also narrated to top it off. Beautifully done!

[ianhosier]

The worse phone charger I ever had contained one rectifier diode, one resistor, a capacitor, a 5v zener and an LED. Needless to say there was no isolation and no fuse and the sleeve of the USB was live!

[ohanneskamerkoseyan]

16:02 The electrolytic capacitor doubles as a fire extinguisher :D

[perhansson]

The cuts with the cat where great, it looks like he is hiding from the microwave oven transformer tests in fear! :D

Thanks for doing these tests, it makes it allot more interesting with an isolation test, especially when the "safety capacitors" fail shorted, really great engineering!

[cheekibreeki]

EVEN MORE VOLTAGE has a bit of the same energy as EVEN MORE SÄLT.

A bit.

[BDYT]

19:12 "I can't even remove it in 1 piece!" *_somehow removes it in 1 piece_*

[Ale.K]

I like how they don't trim the excess wire, potentially reducing the separation even more (or risking direct ccontact),

[BobT]

Your editing is getting super niiice.
Also wow these vids are really eye opening for those dodgy charges that you plug into the wall and often touch with your fingers..

[pojcharapoltosukowong]

The reason that cube shaped chargers seems to be popular is that, these are a clone of Apple's US 5W charger.

Of course the genuine 5w Apple cubes are much safer. :)

[schaltnetzteil]

3:14 That's quite common with those cheap crappy capacitors. I've also seen such poorly pressed safety vents quite often. I also love the high voltage testing and how you show your cat in the videos. Great job!

[JamesBrown-uxds]

This HV-test only showed one thing: This board was quite safe. Being able to take about 1700 volts (short term) instead of 230 is an achievement actualy. 7x the net tension is quite good. And it was not an airgap between too close circuits on the board, but a piece of equipment, that failed, a piece with was probably rated for 500 or 600 volts only. Surprisingly good!

[sidewinderamm]

Thanks for explaining why a short isolation disance is dangerous! I always wondered because I have never seen 120-240V jump across even a 1mm gap, but moisture, poor QC on solder joints, dirt, etc. were things I had not considered.

[BobT]

It always makes me laugh when he breaks out the Microwave bits and all the dodgy electronics, especially with all the warning stickers everywhere. XD
At least we all know you know what you're doing! (you wouldn't still be here if you weren't).

[versedbridge]

Those are what you call fry back power supplies :)

[fabriziobrutti]

2:08 I don't even want to imagine how high mus be the ESL introduced from the capacitors legs

[Zeldon]

Didn't look at the channel name and thought this was one of Clive's or Electroboom's videos, so I was not prepared for this dude's accent lol.

[WagTsX]

did you notice at 13:07 that the secondary rectifying diode solder and the board seem to be overheating too much? they got brownish. Also, super interesting the new high voltage test, can't wait to see it on a proper safe USB charger, I wonder what did you use to limit the current from the microwave oven transformer, to prevent saturation of the MOT during the short-circuits.

[MattSimmonsSysAdmin]

Not a fuse in site, just living its best life. Thanks for the video!

[TheLPfunnTV]

The first video i ever saw from u was " a little more salt" you madman are still puting out awesomr content!