OBJ_BUCH-1275-004.book Page 29 Monday, April 4, 2016 1:04 PM
Assembly
For Your Safety
Warning: Switch off and remove battery from power
tool before adjusting or cleaning.
Do not use 4.5 Ah battery with this power tool.
Removing the battery (see figure A)
The battery 17 is equipped with two locking levels that should
prevent the battery from falling out when pushing the battery
unlocking button 18 unintentionally. As long as the battery is
inserted in the power tool, it is held in position by means of a
spring.
Note: The power tool will not operate unless both locking lev-
els are engaged.
To remove the battery 17:
Push the battery against the base of the power tool
(1.) and at the same time press the battery unlock-
ing button 18 (2.).
Pull the battery out of the power tool to the first
locking level (3).
Press the battery unlocking button 18 again and
pull out the battery completely.
Battery Charging (see figure B)
Do not use other battery chargers. The supplied battery
charger is designed for the Lithium-Ion battery in your ma-
chine.
Observe the mains voltage! The voltage of the power
supply must correspond with the data given on the name-
plate of the battery charger. Battery chargers marked with
230 V can also be operated with 220 V.
The battery is equipped with temperature monitoring that al-
lows charging only in the temperature range between 0 °C
and 45 °C. In this manner, a high battery service life is
achieved.
Note: The battery supplied is partially charged. To ensure full
capacity of the battery, completely charge the battery in the
battery charger before using your power tool for the first time.
The lithium-ion battery can be charged at any time without re-
ducing its service life. Interrupting the charging procedure
does not damage the battery.
The "Electronic Cell Protection (ECP)" protects the lithium-
ion battery against deep discharging. When the battery is run
down or discharged, the chain saw is shut off by means of a
protective circuit: The saw chain no longer moves.
Do not continue to press the On/Off switch after the
machine has been automatically switched off. The bat-
tery can be damaged.
Bosch Power Tools
Charging Procedure
The charging procedure starts as soon as the mains plug of
the battery charger is plugged into the socket outlet and the
battery 17 is inserted into the charging compartment 22.
Due to the intelligent charging method, the charging condi-
tion of the battery is automatically detected and the battery is
charged with the optimum charging current, depending on
battery temperature and voltage.
This gives longer life to the battery and always leaves it fully
charged when kept in the charger for storage.
Meaning of the Indication Elements
Control of the charging procedure is indicated via the charge
control LEDs 24 and 25:
Rapid-charging Procedure
AL 3640 CV
Professional
AL 3620 CV
Professional
The rapid-charging procedure is indicated by flashing of the
green charge control LED 25.
Indication element of the battery: During the charging proce-
dure, the three green LEDs light up one after the other and
briefly go out. The battery is fully charged when the three
green LEDs light up continuously. The three LEDs go out again
approx. 5 minutes after the battery has been fully charged.
Note: The rapid-charging procedure is only possible when the
battery temperature is within the allowable charging temper-
ature range, see section "Technical Data".
Battery Charged
AL 3640 CV
Professional
AL 3620 CV
Professional
Continuous lighting of the green charge control LED 25
signals that the battery is fully charged.
Additionally, a signal tone sounds for approx. 2 seconds,
which acoustically indicates that the battery is fully charged.
Afterwards, the battery can be removed for immediate use.
With no battery inserted, continuous lighting of the green
charge control LED 25 indicates that the mains plug is
plugged into the socket and that the battery charger is ready
for operation.
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