Kodak DC40 - Manual (Page 9)

5 January 1996
An illustration at the bottom of the battery compartment indicates the
position for the top and bottom pairs of batteries.
2. Adjust the battery removal ribbon so that it rests on the bottom of the
battery compartment.
Battery removal
ribbon
3. Insert the bottom pair of batteries with the positive ends (the ends
with a bump) toward the front of the camera.