Nikon Camera F3AF - Manual (Page 119)

TIPS ON BATTERY USE
1 ) Battery power falls off in extremely cold temperatures and
this may cause the camera’s photometric circuit to cease to
operate. In this situation, use new batteries and protect the
camera body from the cold. Note that battery power will be
recovered as soon as the temperature becomes normal.
2) When not using the camera for a long period of time, take
batteries out and store them in a cool (below 25°C), dry place.
Should the batteries be left in the battery chamber for a long
period of time, insufficient contact may occur due to battery
contamination. Thus, it is good practice to periodically clean
the batteries and the contact section in the battery chamber
with a soft cloth. If the battery chamber is stained by a leaking
battery, remove the batteries at once and clean the chamber.
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