0478 131 9939 A - EN
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Faults
One LED illuminates red
During charging:
Battery is too hot or too 
cold for the charging 
process to start. Once the battery has 
cooled down or warmed up, the charging 
procedure starts automatically.
During operation:
Battery is overheated. 
Machine switches off – 
remove the battery from the lawn mower 
and allow to cool for a few minutes.
Four LEDs flash red
The battery is defective 
and must be replaced.
Three LEDs illuminate red
The lawn mower is 
overheated – allow it to 
cool down.
Three LEDs flash red
The lawn mower is 
defective and must be 
checked by a specialist 
dealer. STIHL recommends STIHL 
specialist dealers.
8.6 LED on the charger
The LED (3) indicates the charger 
status. It can illuminate green or 
flash red.
The LED illuminates green 
and the LEDs on the battery 
illuminate or flash green:
The battery is charging.
The LED flashes red:
There is no electrical contact 
between the battery and the 
charger, or there is a fault in 
the battery or in the charger.
If the LED illuminates green and 1 LED on 
the battery illuminates red, the battery is 
too warm or too cold.
● Remedy the faults. (Ö 20.)
9.1 Safety plug
The lawn mower can only be 
operated when the safety plug is 
inserted in the socket behind the battery 
compartment.
● Lift up the battery compartment 
cover (1) and hold in the open position.
● Removing:
Remove the safety plug (2) from the 
socket (3) and keep separately from 
lawn mower.
Inserting:
Press the safety plug (2) as far as it will 
go into the socket (3).
● Close the battery compartment 
cover (1).
9.2 Eco mode switch
The eco mode switch that increases 
battery running time is located in the 
battery compartment. (Ö 10.2)
Switching on eco mode:
● Move switch to position I.
Switching off eco mode:
● Move switch to position 0.
9.3 Folding down the handlebar 
The handlebar can be folded down 
for space-saving transport and 
storage of the mower.
● Switch off the motor immediately and 
disconnect the safety plug. (Ö 12.3)
● Open the left and right quick-clamping 
devices (1) and carefully fold the 
handlebar (2) downwards to the front.
9.4 Adjusting the cutting height 
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9. Controls
Risk of injury!
The safety plug must be 
removed prior to 
performing any work on the 
machine, particularly before 
transport, maintenance or cleaning 
work, as well as before inspecting 
the machine. (Ö 4.)
The cover of the battery 
compartment is held in the closed 
position by two magnets.
9
Danger of pinching!
The handlebar can fold down 
uncontrollably when the quick-
clamping devices are released.
For this reason, always hold the 
handlebar with one hand when you 
release the fastening.
Risk of injury!
Stop the motor before adjusting the 
cutting height.
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