Battery.
Charge Port & USB cable, red charge connector, BMS, Cells, Battery Series Connections, in decreasing order of likeliness. Probably not the ESC.
Replace the charge port, adding a fuse inline with the port, and see if it works.
Battery.
Charge Port & USB cable, red charge connector, BMS, Cells, Battery Series Connections, in decreasing order of likeliness. Probably not the ESC.
Replace the charge port, adding a fuse inline with the port, and see if it works.