English
Error
Display on the
pruning shears
and beeps
Pruning shears
runtime is too
short.
17.2
Troubleshooting the Charger
Fault
LED on Char‐
ger
Battery not being
One LED glows
charged.
red.
The LED fla‐
shes red.
The charger
The LED
does not run a
glows green for
self test.
about 1 second
and then red
for about
1 second.
18 Specifications
18.1
STIHL ASA 20.0 Pruning
Shears
– Approved battery: STIHL AS
– Average cutting frequency: up to 12 cuts/
minute
– Maximum cutting blade opening: 25 mm
– Maximum stem diameter: 25 mm (depending
on wood)
– Weight without battery: 760 g
44
Cause
The cutting and anvil
blades are not suffi‐
ciently lubricated.
The cutting blade is
dull.
The anvil blade is
worn down.
Too much play bet‐
ween the cutting and
anvil blades. The cut‐
ting blade may rattle.
The cutting speed is
too high.
The battery is not fully
charged.
The battery service
life has been excee‐
ded.
Cause
The battery is too
warm or too cold.
No electrical contact
between charger and
battery.
There is a malfunction
in the charger.
There is a fault in the
battery.
Electrical contact to
charger was briefly
interrupted.
For runtime, see www.stihl.com/battery-life.
18.2
– 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
18.3
– Rated voltage: see rating pate
– Frequency: see rating plate
Remedy
► Lubricate the cutting and anvil blades.
► Replace the cutting blade.
► Replace the anvil blade.
► Adjust the play between the cutting and
anvil blades.
► Reduce number of cuts per minute.
► Fully charge the battery.
► Replace battery.
Remedy
► Leave battery inserted in charger.
Charging starts automatically as soon as
the permitted temperature range is rea‐
ched.
► Remove the battery.
► Clean contacts on charger.
► Insert battery.
► Do not use the charger and contact your
STIHL dealer for assistance.
► Do not use the battery. Consult a STIHL
dealer.
► Disconnect the mains plug from the
power supply.
► Wait for 1 minute.
► Insert the mains plug in a wall outlet.
STIHL AS Battery
STIHL AL 1 Charger
18 Specifications
0458-059-9601-A