I have a nitro 5 AN515-55 laptop and a few months after I bought it the battery stopped charging. I tried to just send it to acer repair because it was covered by my warranty but they said it'd cost me $400 to repair. I intend to repair it myself because after talking to customer support I voided my warranty I've read a few things like see if the charger is actually working properly or to do this or that and so far anything I've tried doesn't work. I'm just looking for any tips because anything I find leads to nothing. I have read to change the charger but I haven't tried to do so if anyone think's this is definitely the problem I'll try to do so.
[Edited the thread to add model name to the title]