Canon 850 IS - Manual (Page 123)

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Appendix
Battery Handling
Battery Charge
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Battery Handling Precautions
Keep the battery terminals clean at all times.
Dirty terminals may cause poor contact between the battery and
camera. Polish the terminals with a soft cotton swab before
charging or using the battery.
At low temperatures, battery performance may be reduced
and the low battery icon (
) may appear earlier than usual.
Under these conditions, revive the battery by warming it in a
pocket immediately before use.
However, ensure that there are no metallic items in the
pocket that could cause a short circuit, such as a key ring,
etc.
The battery may be short circuiting.
Do not allow any metal objects
such as key rings to touch the
(
) and ( ) terminals (Fig. A).
To carry the battery or store it
during periods of disuse, always
replace the terminal cover (Fig.
B).
These conditions can damage the
battery.
Battery charge is low.
Recharge it as soon as
possible it will be used for an
extended period.
Change the battery pack
Battery charge is insufficient to
operate the camera. Replace
the battery immediately.
Fig. A Fig. B