Panasonic HX-DC10 Operating Instructions Manual page 171

About the battery
The battery used in this camera is a
rechargeable lithium-ion battery. It is
affected by humidity and
temperature, and the effect
increases the more the temperature
rises or falls.
In high temperatures, the protection
function may be triggered,
preventing use.
Be sure to remove and store the
battery after use.
i If left inside the camera, a minute
amount of current continues to
flow even if the camera is off.
Keeping the camera in this state
may cause the battery to over-
discharge, making it impossible
to use the battery even after it
has been charged.
i The battery should be stored in a
vinyl bag to prevent metal from
contacting the terminals.
i The battery should be stored in a
cool place free from humidity,
with as constant a temperature
as possible. (Recommended
temperature: 0 °C to 30 °C;
recommended humidity: 40 %RH
to 60 %RH)
i Extremely high or low
temperatures will shorten the life
of the battery.
i Environments that are hot, humid
or oily can rust the terminals and
damage the battery.
i If storing the battery for an
extended period of time, it is
recommended that you charge it
once a year, use it until it is
depleted, and store it again.
Remove any dust adhering to the
battery terminals.
Prepare spare batteries when
going out.
i Prepare enough batteries to last
for 3 to 4 times the period you are
planning to record for. Cold
places such as a ski resort can
shorten recording time.
If you drop the battery
accidentally, check to see if the
terminals are damaged.
i Installing a battery with damaged
terminals can damage the
camera.
Do not throw an old battery into
fire.
i Heating a battery or throwing it
into a fire may cause it to burst or
explode.
If the battery does not last long
even after charging, it has
reached the end of its service life.
Please purchase a new battery.
About the AC adaptor
i If the temperature of the battery
is extremely high or extremely
low, charging may take time or
the battery may not be charged.
i If the AC adaptor is used near a
radio (especially during AM
reception), it may generate noise
in the radio. Keep the AC adaptor
at least 1 meter from the radio.
i When using the AC adaptor, it
may generate an oscillating
sound. This is normal.
i When not using the AC adaptor,
be sure to disconnect it from the
AC power outlet.
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