Malfunction LEDs on the
brushcutter
Cause Remedy
The runtime of
the brushcutter is
too short.
The battery is not fully
charged.
► Fully charge the battery.
The battery service
life has been excee‐
ded.
► Replace the battery
The mowing
head cannot be
removed by
hand.
The mowing head is
overtightened.
► Block the fanwheel with the stop pin.
► Unscrew the mowing head by hand.
► Remove the stop pin.
19.2 Troubleshooting the Charger
Fault LED on
Charger
Cause Remedy
Battery not being
charged.
One LED glows
red.
The battery is too
warm or too cold.
► Leave battery inserted in charger.
Charging starts automatically as soon as
the permitted temperature range is
reached.
The LED
flashes red.
No electrical contact
between charger and
battery.
► Remove the battery.
► Clean contacts on charger.
► Insert battery.
There is a malfunction
in the charger.
► Do not use the charger and contact your
STIHL dealer for assistance.
There is a fault in the
battery.
► Do not use the battery. Consult a STIHL
dealer.
The charger
does not run a
self test.
The LED
glows green for
about 1 second
and then red
for about 1 sec‐
ond.
Electrical contact to
charger was briefly
interrupted.
► Disconnect the mains plug from the
power supply.
► Wait for 1 minute.
► Insert the mains plug in a wall outlet.
20 Specifications
20.1 STIHL Brushcutter
–
Approved battery: STIHL AS
–
Weight without battery, with cutting tool and
with deflector: 2.1 kg
–
Length without cutting attachment: 1160 mm
up to 1340 mm
For runtime, see www.stihl.com/battery-life.
20.2 STIHL AS Battery
–
Battery Technology: Lithium-ion
–
Voltage: 10.8 V
–
Capacity in Ah: see rating label
–
Energy content in Wh: see rating label
–
Weight in kg: see rating label
20.3 STIHL AL 1 Charger
–
Rated voltage: see rating pate
–
Frequency: see rating plate
–
Rated power: see rating plate
–
Charging current: see rating plate
–
Maximum energy content of approved STIHL
AS battery: 12.5 Ah
For charging times see www.stihl.com/charging-
times.
20.4 Extension Cords
If an extension cord is used, the cross sectional
area of its conductors must meet the following
minimum requirements – depending on the line
voltage and length of the extension cord:
If rated voltage on the rating label is 220V to
240V:
–
Cord length up to 20 m: AWG 15 / 1.5 mm²
–
Cord length 20 m up to 50 m: AWG 13 /
2.5 mm²
If rated voltage on the rating label is 100V to
127V:
–
Cord length up to 10 m: AWG 14 / 2.0 mm²
–
Cord length 10 m up to 30 m: AWG 12 /
3.5 mm²
English 20 Specifications
20 0458-039-0101-A
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