Charged or Discharged

Very clear explanation

Thank you

Try this with your 12 V car battery and see what happens.

The red light is coming from a current monitoring circuit, the green light is coming from a voltage monitoring circuit. It's no more complicated than that.

When you looped it back to itself, there was energy being drained from the battery in the total circuit resistance; the battery and the wire were heating up. So as was said, current was flowing, ergo red light was on. Eventually you drained the battery, no current flow, no red light.

With no voltage input from an external source, the voltage was only going down, never up, so the voltage monitor was never satisfied.

That's called a heater.

You asked on YouTube "How do you explain this phenomena?"

Simple answer "Complete Idiocy and a huge dose of luck!"

You were very lucky that the circuitry for charging and the output voltage regulator are probably quite well designed and input and output are probably well isolated from each other.

What you deserved to get, was a small fire!!! Lucky for you that did not happen!

By the way, that is not really a charger, its mostly a battery!! It may have charging control circuitry in it, but it really needs that little white USB 5 volt power unit, that goes in a wall socket to fulfill charging that battery.

Its a sort of "in-between" unit!!

When plugged into say a mobile phone, it supplies (generally) regulated 5 volts from the battery, for the phones charge control circuit!

Useful item I find.

I hope he is not one of new breed of engineers on this forum, boy that's a scary thought.

LOL!!!!

No, this is a scary thought:

Possible to Design a Mini Printing Device Like This -- Mechanical-Wise?

No, I graduate from college many years ago, but I like extraordinary experiments

tonyhemet had written (correctly to my mind!):-

I hope he is not one of new breed of engineers on this forum, boy that's a scary thought.

You wrote:-

No, I graduate from college many years ago, but I like extraordinary experiments

But I simply cannot follow your reasoning or logic with such an experiment (Tony probably also not!) in such poorly thought out one at all.

As I said before, only "simple idiocy" describes it best in my opinion.

I know that I would have fired you (or not even have offered you a job), with any of the large US corporations that I worked for over the last 40 odd years, with your mentality.....

Your (claimed!) knowledge alone SHOULD have told you the most likely result, assuming no "shorts" between input and output through possible poor design (not uncommon in such devices, of which most are Chinese nowadays!), without the need to take the risk of actually doing it!!!

Nor mentioning it here, which makes you, to my mind, look rather more like a teenage experimenter than any type of Engineer....therefore nothing to be proud of to my mind, in fact, something to be ashamed of!!

I, like tonyhemet, find it scary too.......

Therefore I am leaving this blog as I can see that common sense and good knowledge or work practice do not apply and that there is nothing here to learn of any use to anyone with even a modicum of common sense!!

Bye!

Explanation? "You're an idiot" fits the bill.

Give thinhnghiem a break! He's only made 12 posts.

I'm usually the one giving people a hard time when they ask goofy questions and I think he deserves some courtesy.

We've all asked dumb questions and given stupid answers, at least I know I have.

Don't worry

I do not a break. I can continue to answer here if you follow

WOW! What Happened?? Did you get Hacked? Somebody else masquerading as Lyn? Just when you thought you seen or heard it all