Hilti ST 1800-A18, Operating Instructions Manual

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3.4 Li­ion battery display
The charge status of the Li-ion battery and malfunctions of the power tool are indicated by the display on
the Li­ion battery. The charge status of the Li­ion battery is displayed after pressing one of the two battery
release buttons.
Status Meaning
4 LEDs light. • Charge status: 75 % to 100 %
3 LEDs light. • Charge status: 50 % to 75 %
2 LEDs light. • Charge status: 25 % to 50 %
1 LED lights. • Charge status: 10 % to 25 %
1 LED blinks, the power tool is ready for use. • Charge status: < 10 %
1 LED blinks, the power tool is not ready for use. • The battery has overheated.
4 LEDs blink, the power tool is not ready for use. • The power tool is overloaded or has overheated.
Note
Battery charge state cannot be displayed while the control switch is pressed and for up to 5 seconds
after releasing the control switch. If the battery display LEDs blink, please observe the instructions
given in the Troubleshooting section.
4 Technical data
4.1 Cordless metal screwdriver
Rated voltage 21.6 V
DC
Weight 5.5 lb
(2.5 kg)
Rated speed under no load
33.3 Hz
(2,000 rpm)
Torque 9 ftlb
f
(12 Nm)
Socket/bit drive 1 /
4
″ hex. socket with locking ring
5 Operation
Inserting the battery
WARNING
Risk of injury! Inadvertent starting of the impact screwdriver.
▶
Before fitting the battery, check that the cordless impact screwdriver is switched off
and that the forward/reverse switch is in the middle position (i.e. safety lock engaged).
WARNING
Electrical hazards! Risk of short circuiting.
▶
Before inserting the battery, check to ensure that the battery terminals and the contacts
in the impact screwdriver are free from foreign objects.
WARNING
Risk of injury! Hazard presented by a falling battery.
▶
A falling battery may present a risk of injury to yourself and others. Check that the
battery is securely seated in the power tool.
Note
Make sure that the outer surfaces of the battery are clean and dry before inserting the
battery in an approved battery charger.
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Printed: 15.10.2015 | Doc-Nr: PUB / 5070714 / 000 / 04