Canon WFT-R10A Wireless File Transmitter for EOS R5 C & R5 Mirrorless Camera - Manual (Page 23)

2.
Attach the battery magazine.
Guide the end of the cord out of the cord hole.
3.
Connect the DC coupler to the AC adapter.
Securely connect the DC coupler's plug to the socket of AC Adapter
AC-E6N (sold separately).
4.
Connect the power cord.
Connect the power cord to the AC power adapter and insert the power
plug into a power outlet.
Caution
While the camera is on, do not connect or disconnect the power cord or connector,
and do not remove the battery magazine.
Avoid getting the DC coupler cord caught between the transmitter and battery
magazine.
23