Panasonic EY75A4, Operating Instructions Manual

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more than a 15°C difference between
the temperatures of the battery and the
charging location.)
(3) Battery low warning lamp
Off (normal
operation)
Flashing (No charge)
Battery protection
feature active
Excessive (complete) discharging of
lithium 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.
• If it is started with too little battery power
remaining, the tool may stop operating
without the battery low warning lamp
flashing first. This indicates that there is
too little battery power remaining to use
the tool, and the battery pack should be
charged before further use.
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 ter-
minals.
The life of the battery pack terminals may
(2) Overheat warning lamp
Off
(normal
operation) Illuminated:
Overheat
(motor) Flashing:
Overheat
(battery)
Indicates operation has
been halted due to motor
or battery overheating.
To protect the motor or battery, be sure to
note the following when carrying out this
operation.
• If the motor or battery becomes hot, the
protection function will be activated and
the motor or battery will stop operating.
The overheat warning lamp on the
control panel illuminates or
fl ashes
when this feature is active.
• If the overheating protection feature
activates, allow the tool to cool
thoroughly (at least 30 minutes). The
tool is ready for use when the overheat
warning lamp goes out.
• Avoid using the tool in a way that
causes the overheating protection
feature to activate repeatedly.
• If the tool is operated continuously
under high-load conditions or if it is
used in hot-temperature conditions
( s u c h a s d u r i n g s u m m e r ) , t h e
overheating protection feature may
activate frequently.
• If the tool is used in cold-temperature
conditions (such as during winter) or if
it is frequently stopped during use, the
overheating protection feature may not
activate.
• The performance of the EY9L42
deteriorates significantly at and below
10°C due to work conditions and other
factors.
• 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.
• 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
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