Canon PowerShot A100 User Manual page 21

Proper Battery Handling
Use AA-size Alkaline or Canon AA-size NiMH
batteries only. Refer to "Using Rechargeable
Batteries" (p. 96) for their handling.
Never use manganese or lithium batteries,
as these battery types may overheat in the
camera.
Since the performance of alkaline batteries
may differ according to brand, the operating
time of the batteries you purchase may not
be as long as the batteries that came with
the camera.
Camera operating time may shorten at low
temperatures when alkaline batteries are
used. Also due to their specifications,
alkaline batteries may expire faster than
NiMH batteries. If you are using the camera
in cold areas or for a long time, we
recommend using Canon AA-size NiMH
Battery Kit.
While it is possible to use AA-size nickel-
cadmium batteries, performance is unreliable
and their use is not recommended.
G Preparing the Camera G
Never mix unused and partially used batter-
ies. Always load two fresh (or fully recharged)
batteries at the same time.
Never mix batteries of different types or from
different manufactures. Both batteries should
be identical.
Before inserting the batteries, wipe the
battery terminals well with a dry cloth. Oil from
one's skin or other dirt may cause a consid-
erable reduction in the number of recordable
images or reduced usage time.
Before using the camera, wipe the
terminals in the camera well with a dry cloth.
Dirt may cause a bad electrical contact.
Battery performance deteriorates at low
temperatures (especially with alkaline
batteries). If you are using the camera in cold
areas and batteries are running down faster
than they should, you may be able to restore
performance by placing batteries in an inner
pocket to warm them up prior to use. But be
careful that you don't put the batteries into a
pocket together with a metal key chain or
other metallic objects, as these objects may
cause batteries to short-circuit.
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