This is the PCB inside of the power bank adapter. There are 2 identical supplies for the USB ports. You clearly see the inductors of the buck converters. 

I want to use the XT60 connector for my project because my solder station (TS100) has an adapter for the XT60 connector. 

The distance between the solder points from the battery also fit very well to the pitch of the XT60 connector. 

To connect to the battery pack they use a common connection plate and cables. 

The next time we adapt the housing for the XT60 connector.