11 Charging the Battery
To set up the charger:
3
2
1
► Insert the plug (3) into a properly installed
electrical outlet (4) matching the voltage and
electrical frequency stated on the charger's
rating plate.
The charger runs a self-test immediately after it
is plugged in. The charger LED (1) will glow
green for about 1 second, then it will glow red
briefly before going out. Once the LED goes out,
the self-test is complete and the charger is ready
to charge the battery.
► Position the power supply cord (2) so that it
will not be stepped on, tripped over, come in
contact with sharp objects or moving parts or
otherwise be subjected to damage or stress.
11.2
Charging
WARNING
■ STIHL batteries contain safety features and
devices which, if damaged, may allow the bat‐
tery to generate heat, rupture, leak, ignite or
explode. Never charge a malfunctioning, dam‐
aged, cracked, leaking or deformed battery, or
use a charger that has been damaged. Never
insert a wet battery or battery adapter. Never
use a wet charger. Follow all product-specific
warnings and instructions accompanying your
battery and charger.
A battery is not fully charged when it ships from
the factory. STIHL recommends that you fully
charge the battery before using it the first time.
Read and follow the warnings and instructions in
your charger's manual. For optimum perform‐
ance, observe the recommended ambient tem‐
perature ranges,
26.6.
The battery heats up during operation of the
power tool. If a hot battery is connected to the
charger, it may be necessary for it to cool down
before charging starts. The charging process
begins only after the battery has cooled down
sufficiently.
0458-791-8221-D
4
1
3
2
Charging time depends on a number of factors,
including battery condition and the ambient tem‐
perature. For a complete list of approximate
charging times, see www.stihl.com/charging-
times.
4
To charge an AR battery:
1
4
3
► Push the plug of the connecting cord (1) into
the socket (2) of the AP Adapter (3) until it
stops.
► Push the AP Adapter into the charger (5) until
it stops.
The LED (4) on the charger glows green when
the battery is charging.
The LEDs on the AR battery glow green and
show the state of charge.
When the LEDs on the battery turn off, the
charging process is complete and the charger
will shut itself off. The AP Adapter can be
removed from the charger.
► Disconnect the power supply cord from the
electrical outlet when the charger is not in use
for extended periods of time.
► Charge STIHL AR backpack batteries only
with genuine STIHL AL 301, AL 301-4 or AL
500 series chargers.
To charge an AP battery:
1
3
2
5
5
2
4
English
4
3
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