Panasonic EY4550 - Manual (Page 13)

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[Battery Pack]
For Appropriate Use of
Battery pack
Li-ion Battery pack
• For optimum battery life, store the
Li-ion battery pack following use
without charging it.
• When charging the battery pack,
confirm that the terminals on the
battery charger are free of foreign
substances such as dust and water etc.
Clean the terminals before charging
the battery pack if any foreign
substances are found on the terminals.
The life of the battery pack terminals
may be affected by foreign
substances such as dust and water
etc. during operation.
• When battery pack is not in use, keep
it away from other metal objects like:
paper clips, coins, keys, nails, screws,
or other small metal objects that can
make a connection from one terminal
to another.
Shorting the battery terminals together
may cause sparks, burns or a fire.
• When operating the battery pack,
make sure the work place is well
ventilated.
• When the battery pack is removed
from the main body of the tool,
replace the battery pack cover
immediately in order to prevent dust
or dirt from contaminating the battery
terminals and causing a short circuit.
Battery Pack Life
The rechargeable batteries have a
limited life. If the operation time
becomes extremely short after
recharging, replace the battery pack
with a new one.
Battery Recycling
ATTENTION:
For environmental protection and
recycling of materials, be sure that
it is disposed of at an officially
assigned location, if there is one in
your country.
[Battery Charger]
Charging
Cautions
• If the temperature of the battery pack
falls approximately below −10°C
(14°F), charging will automatically
stop to prevent degradation of the
battery.
• The ambient temperature range is
between 0°C (32°F) and 40°C (104°F).
If the battery pack is used when the
battery temperature is below 0°C (32°F),
the tool may fail to function properly.
• When charging a cool battery pack
(below 0°C (32°F)) in a warm place,
leave the battery pack at the place
and wait for more than one hour to
warm up the battery to the level of the
ambient temperature.
• Cool down the charger when
charging more than two battery packs
consecutively.
• Do not insert your fingers into contact
hole, when holding charger or any
other occasions.
To prevent the risk of fire or
damage to the battery charger.
• Do not use power source from an
engine generator.
• Do not cover vent holes on the
charger and the battery pack.