Hi,
Already the title should raise a red flag.
Nevertheless, I've had a chinese power torch:

which seems the same described by
DiodeGoneWild here.
He has a PROTECTED Li-Ion cell and a super dodgy power supply, in which when does not kill, probably will work (for some times) in charging the cell.
Conversely, mine did have this cell:

For which the P/N corresponds to the italian website stating does NOT have protection. So I knew it was dangerous and the charger most probably is the same quality of the one in the video, but I wanted to still check it out - but I am not sure if I reverse engineer it correctly, since the feedback circuit seems a bit cryptic. Also, I did not have clue on the winding polarity of the transformer.
To begin, this is the PCB, in which already the isolation clearance is broken:

And the front is this:

Now, the reverse engineered schematic looks like this one:

Getting to the first question, is this correct? If so, how does work the feedback? Does it use an 1N4148 with the 6.2V zener for the BJT feedback?
Second question: how is that possible that such dangerous crap is freely sold here in Europe? Because it was in a perfectly legal shop, was not bought from a shady eBay distributor.
EDIT: fixed the pics
