Panasonic EY7546 - Manual (Page 9)

- 9 -
(4) Battery low warning lamp
Off (normal
operation)
Flashing (No charge)
Battery protection
feature active
Excessive (complete) discharging of Li-
ion batteries shortens their service life
dramatically. The driver includes a battery
protection feature designed to prevent
excessive discharging of the battery pack.
• The battery protection feature activates
immediately before the battery loses its
charge, causing the battery low warning
lamp to flash.
• If you notice the battery low warning
lamp flashing, charge the battery pack
immediately.
Recommended Grip
Use the grip to hold and operate the
driver with one hand. If the job requires
additional force, you can push against
the rear end of the driver with your other
hand.
[Battery Pack]
For Appropriate Use of
Bat tery Pack
Li-ion Battery Pack
• For optimum battery life, store the Li-ion bat-
tery 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 lim-
ited life. If the operation time becomes
extremely short after recharging, replace
the battery pack with a new one.
[Battery Charger]
Charging
CAUTION:
• 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 bat-
tery 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.
• Unplug the charger when not in use.
EY7546_EY7547_EY7550_EY7551_EU.indb 9 2011-2-25 14:40:09