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(2) Overheat warning lamp
The overheating protection feature
halts operation to protect the battery
pack in the event of overheating. The
overheat warning lamp on the control
panel flashes when this feature is ac-
tive.
• If the overheating protection feature
activates, allow the driver to cool thor-
oughly (at least 30 minutes). The bat-
tery is ready for use when the overheat
warning lamp goes out.
• Avoid using the driver in a way that
causes the overheating protection fea-
ture to activate repeatedly.
(3) Battery low warning lamp
Excessive (complete) discharging of
lithium ion batteries shortens their
service life dramatically. The tool in-
cludes a battery protection feature
designed to prevent excessive dis-
charging of the battery pack.
• The battery protection feature acti-
vates 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.
[Battery Pack]
For Appropriate Use of
Battery pack
Li-ion Battery pack (EY9L40/
EY9L41)
• For optimum battery life, store the
Li-ion battery pack following use
without charging it.
• When charging the battery pack, con-
firm 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 sub-
stances 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 ven-
tilated.
• When the battery pack is removed
from the main body of the tool, re-
place the battery pack cover imme-
diately in order to prevent dust or dirt
from contaminating the battery ter-
minals and causing a short circuit.
Off
(normal
operation)
Flashing: Overheat
Indicates operation has
been halted due to
battery overheating.
Off
(normal
operation)
Flashing
(No charge)
Battery protection
feature active