Stihl Ar Backpack Battery - Stihl MSA 161 T Instruction Manual

12 LED Diagnostics and Acoustic Signals
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 Power Tool Status
The same LEDs on the battery will indicate the status of the
power tool.
If three LEDs glow red continuously: the power tool motor is
too hot. Allow the motor to cool down.
If three LEDs flash red when you activate the trigger switch:
the power tool has an electrical malfunction. Do not operate
the power tool. Have it checked by an authorized STIHL
servicing dealer before use or storage.
For troubleshooting information, @ 25.
12.1.3 Charge Status
The LEDs on the battery also show the battery's state of
charge.
To determine the battery's state of charge:
1
0458-791-8221-C
► 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 STIHL AR Backpack Battery

12.2.1 Battery Status
Six LEDs and an acoustic signal indicate the status of the
battery.
1
2
3
1 A short beep
The acoustic signal works as it should.
80-100%
60-80%
2 Four or six (AR L) long beeps
40-60%
The battery's charge is low. Recharge the battery.
20-40%
3 Rapid succession of short beeps
There is a malfunction in the battery. The signal stops
automatically after a few seconds. Do not attempt to
0-20%
charge, use or store the battery. Replace the battery.
These LEDs can glow or flash green or red.
English
.......
31