Anker 737 and Rog ally charger

So I just bought an anker 737 power bank and when I go and open it, theirs no wall outlet to charge the battery pack just a cable that came with it. Not knowing what to use to charge it, I grabbed my rog ally charger and connected it to the anker not thinking it would do much since I’ve read a lot of posts saying you need an expensive powerful wall outlet to charge the anker fast. Well I used the ally charger and to my surprise it completely charged it from 0% to 100% in about an hour. Does anyone know if using a charger that’s not meant for the anker going to ruin the battery pack?