The cord was also very small, and the extension was not included in it.
In comparison, my old charger that I had with my Macbook held 5 years. Yes, 5 years old, he passed away two months ago.
In short, a product sold for 70 euros, needless to say it's a ripoff, and I doubt if he really saw either official quality. I advise the charger sold Lenovo. Although it is not official (at least here we are aware), it is much cheaper (40 euros), and it already takes a little more than one month.