Asus X551M doesn't charge despite battery swap and functionning charger

Jun 27, 2018
2
0
10
Hey all!
So, as title says, my laptop doesn't charge anymore. Here are the things I looked at:

My original charger still outputs a full 20 volts of voltage according to my multimeter.
I swapped the battery for a new one, approved by the manufacturer (A41N1308 Li-Ion).
Poked around and it seems like some electrons still get to the battery port.

The computer just shutdown on me one day and never came back.

Now, I'm pretty handy and eager to learn, but still new to electrical engineering. Any ideas of where I could start, what procedure I should follow going forwards?