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AR 900
English
42
Runtime is too short
Battery not fully charged
Charge the battery
Useful life of battery has been reached
or exceeded
Have battery checked and replaced by
STIHL servicing dealer
Rapid succession of beeps sound for sev
-
eral seconds and 4 LEDs on battery flash
red
Malfunction in battery
Disconnect battery from power tool, take it
off your back, observe battery and contact
your STIHL servicing dealer immediately.
If the battery emits fumes, heats up, smells,
makes noises or shows signs of deforma
-
tion, disconnect it from the power tool, take
it off your back, put it down and immediately
move a safe distance away. Keep children
and animals away from the work area. Keep
battery away from combustible materials.
Four long beeps sound and 1 LED on bat
-
tery flashes green
Battery has low charge
Charge the battery
Adapter jams when being inserted in power
tool / charger
Guides dirty
Carefully clean the guides
Battery is not being charged even though
LED on charger glows green
Battery too hot / too cold
(1 LED on battery glows red)
Allow battery to cool down / allow battery to
warm up slowly at temperature of about
15°C - 20°C
Operate charger only in closed, dry rooms
at ambient temperatures b5°C and
+40°C
LED on charger flashes red
No electrical contact between charger
and battery
Remove the adapter and refit it again
Malfunction in battery
(4 LEDs on battery flash red and a
rapid succession of beeps sound for
several seconds)
Disconnect battery from charger, observe
battery and contact your STIHL servicing
dealer immediately.
If the battery emits fumes, heats up, smells,
makes noises or shows signs of deforma
-
tion, disconnect it from the charger and
immediately move a safe distance away.
Keep children and animals away from the
work area. Keep battery away from combus
-
tible materials.
Malfunction in charger
Have charger checked by STIHL servicing
dealer.
Always disconnect the battery from the power tool before performing any maintenance work.
Condition
Cause
Remedy