Vello BG-S2 User Manual page 7

4.
To prevent loss, place the battery chamber door
into the BG-S2 battery door compartment. Align
your camera's battery chamber door with the
BG-S2 battery door compartment. Insert the
battery door's bottom pin into the compartment.
Pull the battery door's release latch and insert
top of the door into the compar tment as
indicated by the arrows. Let go of the latch to
lock the battery door in place.
5.
Swing the door shut and slide the switch to the
LOCK position.
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