Brand New Macbook Pro Charger Not Working

Hi,

I've bought from apple a new charge for my laptop and is not working. I have my old one working perfectly and I'm using the new one in exactly the same conditions but is like a dead cat (without the smell maybe).

Weird thing is that (it happend 2 times) even if the magsafe connector wasn't connected to my laptop the green light was flashing lightly for like 30sec.

I've uploaded a video to youtube so you can see exactly what I'm talking about: https://www.youtube.com/watch?v=hS5jYY5mVGY&feature=youtu.be

I've done lots of research on the internet, tried lots of things but with no succes.

- I've disconnected the battery connector and connect it again.

- I reset the SMC

- there are no stucked pins on the connector

- magsafe connectors are clean

- I'm using the last update on my OS X

- the charger wasn't working at anytime