Canon POWERSHOT A300 User Manual page 20

Use AA-size Alkaline or Canon AA-size NiMH
batteries only. Refer to "Using Rechargeable
Batteries" (p. 118) 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.
Never mix unused and partially used batteries.
Always load two fresh (or fully recharged)
batteries at the same time.
@ Be careful to load the batteries with their
positive (+) and negative (-) ends in the right
direction.
O Never mix batteries of different types or from
different manufacturers. 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 considerable reduction in
the number of reeordable images or reduced
usage time.
@ Battery performance deteriorates at tow
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.
@ If you do not plan to use the camera for a long
time, remove the batteries from the camera and
store them in a safe place. Batteries may leak and
damage the camera if left installed during
prolonged periods of non-use.