How much po pag nagpa replace ng laptop battery and magpa ayos ng charging port ngayon?

Asus Vivobook 15 - Bigla po kasing hindi na nag charge laptop ko, kahapon after mag loko na charge kopa once pero after non ayaw na ulit. Sabi check ko daw if nag w-warm yung charger habang naka plug para malaman if may energy na nag t-transfer pero wala naman pong changes. I didn't know if what's the problem yet kung charger, charging port or battery na kaya nag p-panic nako since I'm a student po need na need talaga ng laptop.

Another question, 19v 2.37a 45w po yung laptop ko, pwede po ba ako gumamit ng 19v 1.37a 33w na charger? thank you po