BR1 MK2 Portable battery options

I am considering using my BR1 MK2 that is currently installed in my motor home and want to know if I can successfully/safely run it from a battery bank. If so, can I add a usb-c plug as the power adapter, and what specifications would the usb-c cable need to meet? Would be powered from an Ego inverter using one or more 56v lithium battery