Canon EOS R50 Advanced User's Manual page 757

2.
Connect the power cord.
Supplying power
To power the camera without charging batteries, set the camera power switch to <
However, batteries are charged during auto power off.
The battery level indicator is gray when power is supplied.
To change from powering the camera to charging, set the camera power switch to
< >.
Connect the power cord to the USB power adapter and plug the other
end into a power outlet.
Charging begins, and the access lamp (1) is lit in green.
When charging is finished, the access lamp turns off.
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