Sony DSC-W5 - Manual (Page 92)

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• If the poles of the batteries and the terminals on
the battery cover of the camera are dirty, the
battery life may be extremely shortened.
Occasionally wipe them with a dry cloth, etc. to
keep them clean.
• If you shoot a lot using the flash and the zoom,
the battery power will be used up faster.
• We recommend having spare batteries handy for
two or three times the expected shooting time,
and try test shooting before actually using the
camera.
Battery life of Nickel-Metal Hydride
batteries
• The battery life is limited. The battery capacity
decreases little by little as you use it more and
more, and as time passes. When the battery
operating time seems to have been considerably
shortened, a probable cause is that the batteries
have reached the end of their life.
• The battery life varies depending on storage,
operating conditions, and environment, and is
different for each battery.
On alkaline batteries
• Alkaline batteries have a shorter life compared
to the supplied Nickel-Metal Hydride batteries.
For this reason, the power may turn off even
though the battery remaining indicator shows
sufficient battery life remaining.
• Battery performance differs greatly depending
on the manufacturer and the type of battery, and
in some cases the battery life may be extremely
short. This is especially true at low
temperatures, and you may not be able to shoot
at temperatures below 5°C (41°F).
• Do not mix new and old batteries.
• The battery remaining indicator does not display
the correct information when using alkaline
batteries.
• Due to characteristics of alkaline batteries, there
is a large difference between the available
shooting time and the available playback time.
For this reason, the camera may turn off with the
lens portion extended when you switch the
mode dial. In this case, replace the batteries with
new ones or fully charged Nickel-Metal Hydride
batteries.