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Working Advice; Charging Advice; Battery Cooling (Active Air Cooling); Battery Charge-Control Indication - Bosch Rotak 36 LI Original Instructions Manual

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OBJ_BUCH-1954-005.book Page 20 Wednesday, July 2, 2014 3:06 PM
20 | English
The rapid-charging procedure is indicated by flashing of the
green charge control LED .
Indication element of the battery:
During the charging procedure, 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 sig-
nals 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 indicates that the mains plug is plugged
into the socket and that the battery charger is ready for oper-
ation.
Battery Temperature below 0 °C or above 45 °C
AL 3640 CV
Professional
AL 3620 CV
Professional
Continuous lighting of the red LED indicates that the bat-
tery temperature is not within the rapid-charging temperature
range of 0 °C – 45 °C. As soon as the allowable temperature
range is reached, the battery charger automatically switches
to rapid charging.
When the battery is not within the allowable temperature
range, the red battery LED lights up when inserting the bat-
tery into the battery charger.
No charging procedure possible
AL 3640 CV
Professional
F 016 L81 154 | (2.7.14)
AL 3620 CV
Professional
If a different malfunction of the charging procedure is pre-
sent, this will be indicated through flashing of the red charge
control LED .
The charging procedure cannot be started and the battery
cannot be charged (see section "Troubleshooting").

Charging Advice

With continuous or several repetitive charging cycles without
interruption, the charger can warm up. This is not meaningful
and does not indicate a technical defect of the battery charg-
er.
A significantly reduced working period after charging indi-
cates that the battery is used and must be replaced.
Observe the notes for disposal.

Battery Cooling (Active Air Cooling)

The fan control integrated in the battery charger controls the
temperature of the inserted battery. When the battery tem-
perature is above 30 °C, a fan cools down the battery to the
optimal charging temperature. The switched-on fan produces
a fan noise.
The battery temperature is within the optimal charging tem-
perature range when the fan is not running. Another reason
for a non working fan might be that it is defective. In this case,
the charging time of the battery might be extended.

Working Advice

Battery Charge-control Indication

The battery is equipped with a charge-control indicator
which indicates its charge condition. The charge-control indi-
cator consists of 3 green LEDs.
Press the button to actuate the charge-control indicator . Af-
ter approx. 5 seconds, the charge-control indicator goes out
automatically.
The charge condition can also be checked when the battery is
removed.
LED Indicators
Continuous lighting of 3 green LEDs
Continuous lighting of 2 green LEDs
Continuous lighting of 1 green LED
Flashing of 1 green LED
When no LED lights up after actuating the button , the battery
is defective and must be replaced.
For safety reasons, the charge condition of the battery can
only be checked when the garden product is at a standstill.
During the charging procedure, 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.
Battery Capacity
≥ 2/3
≥ 1/3
≤ 1/3
Reserve
Bosch Power Tools

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