User's Manual

6. Before use
NOTE
The PR 35 may be powered only by the Hilti PRA 84
battery, which is manufactured in accordance with
IEC 60285.
6.1 Charging the battery
DANGER
Use only the Hilti battery, car charging connector
and Hilti AC adapter listed under “Accessories”.
6.1.1 Charging a new battery for the first time
Charge the battery fully before using it for the first
time.
NOTE
Make sure the system to be charged is standing
securely.
6.1.2 Charging a previously used battery
Ensure that the outer surfaces of the battery are clean
and dry before inserting it in the tool.
Li-ion batteries are ready for use at any time, even
when only partly charged. During charging, progress
is indicated by the LEDs on the tool.
6.2 Options for charging the battery
DANGER
The PRA 85 AC adapter is for indoor use only. Avoid
ingress of moisture.
6.2.1 Charging the battery in the tool 67
NOTE
When charging, check that the temperature is within
the recommended charging temperature range (0 to
40°C/ 32 to 104°F).
1. Insert the battery in the battery compartment.
2. Swing the cover to the side so that the charging
cord socket becomes accessible.
3. Connect the charging cord from the AC adapter
or car charging connector to the battery.
4. During charging, the charge status is indicated by
the battery status LEDs on the tool (the tool must
be switched on).
6.2.2 Charging the battery outside the tool 8
NOTE
When charging, check that the temperature is within
the recommended charging temperature range (0 to
40°C/ 32 to 104°F).
1. Remove the battery from the tool and connect it
to the AC adapter or car charging connector.
2. The red LED on the battery lights while charging
is in progress.
6.2.3 Charging the battery while the tool is in
operation 8
CAUTION
Avoid ingress of moisture. Moisture may cause a
short circuit resulting in a risk of burning injury or
fire.
1. Swing the cover to the side so that the charging
cord socket becomes accessible.
2. Connect the charging cord from the AC adapter
to the battery.
3. The tool continues to operate while charging is in
progress.
4. During charging, the charging status is indicated
by the LEDs on the tool.
6.3 Battery use and care
Store the battery in a cool, dry place. Never store
the battery where it is exposed to direct sunlight or
sources of heat, e.g. on heaters / radiators or behind a
motor vehicle windscreen. Batteries that have reached
the end of their life must be disposed of safely and
correctly to avoid environmental pollution.
6.4 Fitting the battery 6
CAUTION
Before inserting the battery in the tool, check that
the terminals of the battery and the tool are free
from foreign objects.
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