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16.2
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.
17 Specifications
17.1
STIHL KOA 20.0 compressor
– Approved battery: STIHL AS
– Maximum pressure: 10.3 bar
– Weight without battery: 1.5 kg
For runtime, see www.stihl.com/battery-life.
17.2
STIHL AS Battery
– 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
17.3
STIHL AL 1 Charger
– Rated voltage: see rating pate
– Frequency: see rating plate
– Rated power: see rating plate
– Charging current: see rating plate
– Maximum energy content of approved STIHL
AS battery: 12.5 Ah
For charging times see www.stihl.com/charging-
times.
17.4
Extension Cords
If an extension cord is used, the cross sectional
area of its conductors must meet the following
minimum requirements – depending on the line
voltage and length of the extension cord:
If rated voltage on the rating label is 220V to
240V:
– Cord length up to 20 m: AWG 15 / 1.5 mm²
34
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.
– Cord length 20 m up to 50 m: AWG 13 /
2.5 mm²
If rated voltage on the rating label is 100V to
127V:
– Cord length up to 10 m: AWG 14 / 2.0 mm²
– Cord length 10 m up to 30 m: AWG 12 /
3.5 mm²
17.5
■ The battery is not protected against all ambi‐
ent conditions. If the battery is exposed to cer‐
tain environmental conditions, it may catch fire
or explode. This may result in serious injury to
people and damage to property.
► Do not charge the battery below -20°C or
► Do not use the compressor, battery or
► Do not store the compressor, battery or
17.6
For optimum performance of the compressor, the
battery and the charger, observe the following
temperature ranges:
– Charging: 5°C to 40°C
– Use: -10°C to 40°C
– Storage: -20°C to +50°C
If the battery is charged, used or stored outside
the recommended temperature ranges, perform‐
ance may be restricted.
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.
Temperature limits
WARNING
above 50°C.
charger below -20°C or above 50°C.
charger below -20°C or above 70°C.
Recommended temperature
ranges
17 Specifications
0458-057-9601-A
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