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Important Charging Notes - Bosch 1644-24 Operating/Safety Instructions Manual

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BM 2610917685 9-02
Plug charger cord into your standard power
outlet. Before inserting battery pack, remove
protective cap, then insert battery pack into
charger (Fig. 10).
The charger's green indicator will begin to
"BLINK". This indicates that the battery is
receiving a fast charge. Fast-charging will
automatically stop when the battery pack is
fully charged.
When the indicator light stops "BLINKING"
(and becomes a steady green light) fast
charging is complete.
When you begin the charging process of the
battery pack, a steady green light could also
1. The battery pack accepts only about 80%
of its maximum capacity with its first few
charge cycles. However, after the first few
charge cycles, the battery will charge to
full capacity.
2. The charger was designed to fast charge
the battery only when the battery
temperature is between 40˚F (4˚C) and
105˚F (41˚C).
3. A substantial drop in operating time per
charge may mean that the battery pack is
nearing the end of its life and should be
4. If you anticipate long periods (i.e. a month
or more) of non-use of your tool, it is best
to run your tool down until it is fully
discharged before storing your battery
pack. After a long period of storage, the
capacity at first recharge will be lower.
Normal capacity will be restored in two or
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mean the battery pack is too hot or too cold.
The purpose of the light is to indicate that the
battery pack is fast-charging. It does not
indicate the exact point of full charge. The
light will stop blinking in less time if the
battery pack was not completely discharged.
When the battery pack is fully charged,
unplug the charger (unless you're charging
another battery pack) and slip the battery
pack back into the tool handle.
To prevent fire or injury when batteries are
not in tool or charger, always place
protective cap onto end of battery pack.


three charge/discharge cycles. Remember
to unplug charger during storage period.
5. If battery does not charge properly:
a. Check for voltage at outlet by plugging
in some other electrical device.
b. Check to see if outlet is connected to a
light switch which turns power "off"
when lights are turned off.
c. Check battery pack terminals for dirt.
Clean with cotton swab and alcohol if
d. If you still do not get proper charging,
take or send tool, battery pack and
charger to your local Bosch Service
Center. See "Tools, Electric" in the
Yellow Pages for names and addresses.
NOTE: Use of chargers or battery packs not
sold by Bosch may void the warranty.
FIG. 10



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