Canon AE-1 PROGRAM Instructions Manual page 33

4 . Pressing the battery check button, the shut-
ter button, the exposure preview switch, or
the AE lock switch uses battery power. Take
care that nothing presses on any of these
when the camera is not in use.
5. Remove the battery if you do not expect to
use the camera for about three weeks or
longer. With normal use, the battery should
last about one year.
6. Do not try to take the battery apart and never
dispose of it in fire.
33
7. Try to make a habit of checking the battery at
the following times :
• After loading a new battery.
• If the shutter won't function when the
main switch is on "A."
• Before and after making many long
exposures.
• After storing the camera for a long time.
• When you are using the camera in low
temperatures (see p.68)'
• Before going on a trip.
• When the camera is used very frequently.
• Before shooting important events .