English
If the four right side LEDs flash red and a rapid
succession of several short beeps is emitted: the
battery has a malfunction and must be replaced.
Do not attempt to charge, use or store the
battery.
► Be aware that your ability to hear the acoustic signal may
be reduced when wearing hearing protection.
9.2
Power Tool Status
When the battery is connected to the power tool, 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, @ 19. For more
information about transporting a malfunctioning battery, see
@ 15.
9.3
Charge Status
The LEDs and acoustic signals on the battery also indicate
the battery's state of charge.
To determine the battery's state of charge:
► Press the button (1) on the backpack battery.
12
100 %
0 %
10 Assembling the Backpack Battery
A single short beep will be emitted. 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 six green LEDs glow continuously: full charge.
If one green LED is flashing and four long beeps are emitted:
less than 20 % charge.
10 Assembling the Backpack Battery
10.1 Attaching the Connecting Cord
To attach the connecting cord:
1
► Unplug the battery from the power tool.
► Remove the cover (1).
► Pass the plug (3) through the opening in the back plate.
► Insert the plug in the battery's socket (2) and turn it
clockwise until it engages with an audible click.
► Replace the cover.
2
3
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