Vello BG-N17 Quick Start Manual page 9

AA Batteries: Place eight AA batteries of the
same type in the AA battery holder as shown.
Make sure the batteries are in the correct
orientation.
4.
Make sure the battery holder latch is rotated
counterclockwise, and slide the battery holder all
the way into the grip. Rotate the latch clockwise,
and reposition it so it's flush with the side of the
grip. Turn on your camera, unlock the BG-N17
via its Control Lock switch, and check the battery
level in the control panel or viewfinder.
9