Battery Protection System - Makita DUH481 Instruction Manual

Battery protection system (Lithium-
ion battery with star marking)
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1. Star marking
Lithium-ion batteries with a star marking are equipped
with a protection system. This system automatically
cuts off power to the tool to extend battery life.
The tool will automatically stop during operation if the
tool and/or battery are placed under one of the following
conditions:
• Overloaded:
The tool is operated in a manner that causes
it to draw an abnormally high current.
In this situation, release the switch trigger on
the tool and stop the application that caused
the tool to become overloaded. Then pull the
switch trigger again to restart.
If the tool does not start, the battery is over-
heated. In this situation, let the battery cool
before pulling the switch trigger again.
• Low battery voltage:
The remaining battery capacity is too low
and the tool will not operate. In this situation,
remove and recharge the battery.
Indicating the remaining battery
capacity
model number.)
1. Indicator lamps 2. CHECK button
Press the check button on the battery cartridge to indi-
cate the remaining battery capacity. The indicator lamps
light up for few seconds.
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6 ENGLISH
Indicator lamps
Lighted Off
NOTE:
• Depending on the conditions of use and the
ambient temperature, the indication may differ
slightly from the actual capacity.
Switch action
CAUTION:
• Before inserting the battery cartridge into the
tool, always check to see that the switch trigger
position when released.
1. Switch trigger A 2. Switch trigger B 3. Lock-off
button
ing system. To turn on the tool, press the lock-off button
and triggers A and B. Release either one of the two
pressed triggers to turn off. The sequence of switch-
ing is unimportant as the tool only starts when both
switches are activated.
Remaining
capacity
Blinking
75% to 100%
50% to 75%
25% to 50%
0% to 25%
Charge the
battery.
The battery
may have
malfunctioned.
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