Use and Care Manual

11
▶ Observe the nationally and internationally applicable transport regulations
when shipping batteries by road, rail, sea or air.
Note
Ideally, the battery should be stored in a fully-charged state in a dry
place that is as cool as possible. Storing the battery in places subject
to high ambient temperatures (e.g. at a window) has an adverse
effect on battery life and increases the rate of self-discharge.
If the battery no longer reaches full charge, it may have lost capacity
due to aging or overstressing. It is still possible to work with this
battery. You should, however, soon replace the battery with a new
one.
7 Troubleshooting
If the fault you are experiencing is not listed or the recommended action to
be taken does not successfully solve the problem, please remove the battery
and return the power tool to Hilti Service.
Fault Possible cause Action to be taken
The power tool
doesn’t start.
1 LED blinks: The bat-
tery is empty.
▶ Remove the battery
and charge it.
The battery is not fitted
correctly.
▶ The battery must be
heard to engage.
Remove the battery
and refit it.
1 LED blinks: The bat-
tery is too hot or too
cold.
▶ Allow the battery to
cool down / warm
up to its working
temperature.
4 LEDs blink: The power
tool was overloaded
briefly.
▶ Release the control
switch and press it
again after a few
seconds.
The control switch
cannot be pressed.
The forward / reverse
selector switch is in the
middle position.
▶ Push the forward /
reverse switch to the
left or right.
Speed of rotation
drops considerably.
Low battery. ▶ Remove the battery
and charge it.
The battery is not
heard to engage.
The retaining lugs on the
battery are dirty.
▶ Clean the retaining
lugs.
The battery runs low
more quickly than
usual.
Very low ambient tem-
perature.
▶ Warm up the battery
slowly to room tem-
perature.