MacBook Pro 2019 not charging with Apple charger only with 15w charger

Hello!

I’ve had my 2019 15” MacBook Pro for two years now and always used the Apple charger but yesterday it stopped charging.

I don’t think the cable is the problem because when I plug the charger in it will charger for 1 to 10 seconds and then my computer acts like it’s disconnected (as in it doesn’t even tell me “battery not charging” according to the display there isn’t anything plugged in).

So for now the only way I can charge my MacBook is by using a usb c to usb cable and connect that to my 15W usb wall charger that I use for my phone, but as you can imagine it takes forever to charge.

I tried the SMC and NVRAM/PRAM procedures multiple times, I tried different outlets, I tried with each charging port and same result. And the battery health is normal according to the settings.

Do I need to buy a new charger or get the battery replaced ?