Canon EOS RP Instruction Manual page 251

You cannot use batteries other than the Battery Pack LP-E17.
o
After opening the card slot/battery compartment cover, be careful not to swing
o
it back any further. Otherwise, the hinge may break.
Removal
1
Open the card slot/battery
compartment cover.
Set the power switch to < 2 >.
z
Check that the access lamp (1) is off,
z
then open the cover.
If [Saving...] is displayed on the screen,
z
close the cover.
(1)
2
Remove the battery.
Press the battery lock lever as shown by
z
the arrow and remove the battery.
To prevent short-circuits, always attach
z
the included protective cover ( = 40)
to the battery.
3
Remove the card.
Gently push in the card, then let it go to
z
eject.
Pull the card straight out.
z
4
Close the cover.
Press the cover until it snaps shut.
z
Inserting/Removing the Battery and Card
43