Some time ago I bought a power supply to replace my previous notebook power supply. Two weeks ago my original NT was defective.
So I had the replacement power supply that is universal and has several jack plugs.
When I loaded my notebook and sat on the couch, the cable came out of the jack plug. I thought nothing of it and wanted to plug it in again.
When I did that it just clicked and my NB is broken.
The fact is that the reverse polarity protection is not sufficient in my opinion.
The question is how do I have this clarified in order to keep the dealer / manufacturer liable? Who is responsible for that.
If the reverse polarity protection, if any, is provided by the manufacturer, it is not a defect.
I don't know that you have to legally have reverse polarity protection.
That is more of your own fault. Not paying attention and damaged by it.
Well, but the question is who can tell you that? The NT has 19.5V and (think) 1A with 120 watts, if my child touches it with his tongue (and that can't be ruled out) etc. There are IP standards etc.
But I just want to give the whole thing to a professional who checks it.
A lawyer must be involved.
If the power supply is 19.5 volts, it is safety extra-low voltage. Can you lick it, nothing happens, at most it tingles.
For 120 watts it should be able to deliver a good 6A, not just 1A.
It is a universal power supply, reverse polarity protected as the caution of the user. Technically nothing is required. The lawyer won't help either.
That's exactly how it looks like. And when your child gets hold of the tongue, you have neglected parental supervision.
An NT with 19.5V and 1A has max. 20 watts.
The NT's for notebooks usually have 4-5 A at 19.5V, i.e. Approx. 85-100 watts.
Not to be smart… But to explain.
Better say 19.5 watts, then it might be easier for the layman to understand.
Even if you are right and there's often room for improvement with tolerances.
For the layman: voltage * current = power, i.e. 19.5V * 1A = 19.5 watts
The power supply unit is not a defective product, it is only unsuitable for the NB. You buy as a replacement, if not an original power supply, but at least one that corresponds to the original in terms of values and connection. Using a universal power supply with several connections and possibly a plug for polarity reversal is to be classified as grossly negligent. It's your own fault, bad luck… ☻☻☻
The reverse polarity protection can't be installed in the power supply unit, but only in the laptop. If he's missing there…
If the power supply outputs 19.5V at one ampere, then it has an output of 19.5W… Rather unlikely. If a child puts the cable in their mouth, it is still 19.5V… And they go over the negative pole and not over the earth; so harmless.
Regarding "reverse polarity protection": That is the disadvantage of "universal" because it means that it can also be used incorrectly… In your case, it is put back together with the wrong polarity. If your power supply has a jack plug, I can't imagine how you can reverse the polarity; but good… If you say that, it will be like that!
Maybe you go to a repair cafe with all the buzz; they should take a look at it and maybe the situation can still be saved with some lightness!