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12 LED Diagnostics
b
1
2
c
a
► Mount the charger indoors in a dry room near
an electrical outlet.
► Sink the screws into a wall stud. Use appropri‐
ate screw-in wall anchors or similar mounting
devices if an appropriate wall stud is not avail‐
able.
► Align the charger as shown above. Mount to a
wall with the following dimensions:
– a = minimum 18 in. (450 mm)
– b = minimum 3.9 in. (100 mm)
– c (for AL 101) = 3.0 in. (75 mm)
– c (for AL 301) = 3.9 in. (100 mm)
– c (for AL 500) = 4.7 in. (120 mm)
– d = 0.2 in. (4.5 mm)
– e = 0.4 in. (9 mm)
– f = 0.1 in. (2.5 mm)
12 LED Diagnostics
12.1
LEDs on the Battery
12.1.1
Battery Status
Four LEDs show the status of the battery. These
LEDs can glow or flash green or red.
If one LED glows red continuously:
the battery is either too hot or too
cold. Allow the battery to warm up or
cool down gradually at an ambient
temperature of about 50 °F to 68 °F
(10 °C to 20 °C).
If all 4 LEDs flash red: the battery
has a malfunction and must be
replaced. Do not attempt to charge,
use or store the battery.
12.1.2
Blower Status
When the battery is inserted in the blower, the
same LEDs on the battery will indicate the status
of the blower.
If three LEDs glow red continuously: the blower
motor is too hot. Allow the motor to cool down.
If three LEDs flash red when you activate the
trigger switch: the blower has an electrical mal‐
function. Do not operate the blower. Have it
checked by an authorized STIHL servicing dealer
before use or storage.
0458-008-8201-B
For troubleshooting information,
3
12.1.3
The LEDs on the battery also show the battery's
state of charge.
e
d
To determine the battery's state of charge:
f
f
► Press the button (1) on the battery.
The LEDs on the battery will glow or flash
green for about 5 seconds and indicate the
state of charge (see illustration).
For example:
If four green LEDs glow continuously: full charge.
If one green LED is flashing: less than 20 %
charge.
12.2
One LED shows the status of the charger. The
LED can glow green or flash red.
For more information,
Charge Status
1
LED on the Charger
If the LED glows green continuously:
the battery is being charged.
or
The battery is too hot or too cold for
charging. To determine, check the
LEDs on the battery. If there is one
glowing red light, allow the battery to
warm up or cool down gradually at an
ambient temperature of about 50 °F to
68 °F (10 °C to 20 °C).
If the LED flashes red: there is no elec‐
tric contact between the battery and the
charger. Remove and reinsert the bat‐
tery.
or
The battery has a malfunction and
must be replaced. Check the LEDs on
the battery. Do not use or charge a bat‐
tery if its LEDs indicate a malfunction.
or
The charger has a malfunction. Have it
checked by an authorized STIHL serv‐
icing dealer before use.
23.
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