Inside a portable battery power station 

I’ll always respect the RU-vidr who shows their mistakes and does not try and blame others in the process. This video just reinforces this channel as one of my favourites.

Matthias "Big Clive" Wandel

The old ground loop through an instrument.... happend to the best of us...

I understand little of what Matthias is saying, but I still find it interesting.

Little Knowledge is dangerous.

The "epoxy" on that board is better known as conformal coat. One flavor of conformal coat can be dissolved with acetone, if you want to try the repair. Urethane CC is another variant and is much harder to repair.

Matthias and sponsored videos is not a great marriage, great video tough.

i love the fixing electronics content. Do more of it please.

"You must also watch EEVBlog videos" - why yes I do lol

I have a tip for you. If you want to change the transistors, just cut of the leads und desolder them afterwars. That makes it a lot easier. And for the transistor. You need not to you the same. Goggle the data sheet of the original ones and search ones with same specs

Flips circuit board over...."I think I'm getting to the bottom of it"

It's like I once told my mother: you can't do anything to your computer that I can't fix. I, on the other hand, can break it much better.

I love watching bigclives teardown videos, it's super interesting to see something looked at from another perspective.

For what it's worth, some laptops actually do appear to be grounded between the USB ground and the charger neutral when plugged in. I discovered this while messing around with an Arduino Nano connected a Dell XPS laptop while examining output signal with a Tektronix 3052 digital oscilloscope. However, when the laptop is unplugged the USB ground then floats as you'd expect.

It actually seemed like a good review overall, you were very pleased with the circuitry

Good Video! , its good to see a more humble side of the wizard!!

This is the video explanation of what I have

I've been using the Delta Max for about a week now. Encountered no problem whatsoever. It is pretty well built from the ground up. It's nice to see the circuitry in all it's glory.

So what you're saying is that after reverse engineering and tinkering you now have a couple of thousand dollars worth of boat anchor...that you can charge the trolling motor battery with. My electronics professor Ron Eli used to say, "Smoke test!". Great video Matthias, thumbs up.

That is why I always used an isolation transformer on my test equipment! but I can say I am from the days of Tube and transformers in my early days of electronics. hey I am still here and in Texas too! thanks for the video! I found you several years ago due to wood working like so many others. I like your approach to things.