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10 Charging the Battery
To charge the battery:
► Push the battery (2) into the charger (3) until it stops.
The LED on the charger (4) glows green when the battery 
is charging.
The LEDs (1) on the battery glow green and show the 
state of charge.
The charging process is complete when the LED on the 
charger and the LEDs on the battery go out.
The charger turns itself off when the battery is fully 
charged.
► Remove the battery from the charger and disconnect the 
power supply cord from the electrical outlet when charging 
is complete.
A battery is not fully charged when it ships from the factory. 
STIHL recommends that you fully charge the battery before 
using it the first time.
Operate the charger only indoors, in dry rooms and within an 
ambient temperature range of 41 °F to 104 °F (5 °C to 
40 °C).
The battery heats up during operation of the trimmer. If a hot 
battery is inserted into the charger, it may be necessary for 
it to cool down before charging starts. The charging process 
begins only after the battery has cooled down sufficiently.
Charging time depends on a number of factors, including 
battery condition and ambient temperature. For a complete 
list of approximate charging times, see 
www.stihl.com/charging-times.
10.3 Mounting the Charger on a Wall
When mounting, ensure that no electrical cables, pipes or 
other service lines run in the wall behind the charger.
To mount the wall charger:
► Mount the charger indoors in a dry room near an electrical 
outlet.
► Sink the screws into a wall stud. Use appropriate screw-in 
wall anchors or other similar mounting devices if an 
appropriate wall stud is not available.
► 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 300 and 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)
e
a
1
2
0000-GXX-0609-A0
b
f
f
c
3
d