Panasonic EY74A2 Operating Instructions Manual page 15

If the tool is subject to a sudden load
during use that causes the motor to lock
up, the overcurrent prevention sensor may
be triggered, the voltage reduction warn-
ing lamp may illuminate and flash.
(Bottom of it illuminates and middle and
top flashes.)
The lamp will stop illuminating and flash-
ing once you address the cause of the
motor's locking up and cycle the trigger.
[Battery Pack]
For Appropriate Use of
Battery Pack [Fig.9]
• The rechargeable batteries have a
limited life.
• For optimum battery life, store the Li-ion
battery pack following use without
charging it.
• When operating the battery pack, make
sure the work place is well ventilated.
For safe use
• The battery pack is designed to be
installed by proceeding two steps for
safety. Make sure the battery pack is
installed properly to the main unit before
use.
• If the battery pack is not connected firmly
when the switch is switched on, the
overheat warning lamp and the battery
low warning lamp will flash to indicate
that safe operation is not possible, and
the main unit will not rotate normally.
Connect the battery pack into the unit of
the tool until the red or yellow label
disappears.
[Battery Charger]
Charging
CAUTION:
1) If the temperature of the battery pack
falls approximately below −10°C
(14°F), charging will automatically
stop to prevent degradation of the
battery.
EY74A2_EU.indb 15
2) 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.
3) Use the charger at temperatures
between 0°C and 40°C, and charge
the battery at a temperature similar to
that of the battery itself. (There should
be no more than a 15°C difference
between the temperatures of the
battery and the charging location.)
4) 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.
5) Cool down the charger when charging
more than two battery packs consecu-
tively.
6) Do not insert your fingers into contact
hole, when holding charger or any
other occasions.
7) Unplug the charger when not in use.
NOTE:
Your battery pack is not fully charged at
the time of purchase. Be sure to charge
the battery before use.
How to charge
1. Plug the charger into the AC outlet.
NOTE:
Sparks may be produced when the plug
is inserted into the AC power supply,
but this is not a problem in terms of
safety.
2. Connect the battery pack firmly into the
charger.
1 Line up the alignment marks and
place the battery onto the dock on
the charger.
NOTE:
Not all battery packs display the
alignment mark (Q) (on page 2).
2 Slide forward in the direction of the
arrow. [Fig.10
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