Charging; Led Diagnostics; Leds On The Battery - Stihl MSA 120 C Instruction Manual

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► Position the power supply cord (3) so that it will not be
stepped on, tripped over, come in contact with sharp
objects or moving parts or otherwise present a tripping
hazard or be subjected to damage or stress.

13.2 Charging

WARNING
Never charge a malfunctioning, damaged, cracked, leaking
or deformed battery. For indoor use only. Keep the charger
dry. Protect it from rain, water, liquids and damp conditions.
Never insert a wet battery or use a wet charger, @ 10.
To charge the battery:
2
1
► Push the battery (2) into the charger (3) until it stops.
The LED on the charger (4) glows green when the battery
is being charged.
The LEDs (1) on the battery glow green and show the
state of charge.
When the LEDs on the battery turn off, the charging
process is complete and the charger will shut itself off.
► Remove the battery from the charger and disconnect the
power supply cord from the wall outlet when charging is
complete.
A new battery is not fully charged. STIHL recommends that
you fully charge the battery before using it for 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).
36
3
4
The battery heats up during operation of the chain saw. If a
hot battery is inserted into the charger, it may be necessary
for it to cool down before charging. The charging process
begins only after the battery has cooled down sufficiently.
Charging time depends on a number of factors, including
battery condition and the ambient temperature. For a
complete list of approximate charging times, see
www.stihl.com/charging-times.

14 LED Diagnostics

14.1 LEDs on the Battery

14.1.1 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.
14.1.2 Chain Saw Status
When the battery is inserted in the chain saw, the same
LEDs on the battery will indicate the status of the chain saw.
If three LEDs glow red continuously: the chain saw motor is
too hot. Allow the motor to cool down.
If three LEDs flash red when you activate the trigger switch:
the chain saw has an electrical malfunction. Do not operate
the chain saw. Have it checked by an authorized STIHL
servicing dealer before use or storage.
For troubleshooting information, @ 25.
14 LED Diagnostics
0458-716-8621-C