MAINTENANCE
• Make sure the battery pack and battery
pack charger are clean and that the
terminals on the battery pack and the
battery pack charger are always clean
and dry before the battery pack is
placed in the battery pack charger.
• Keep the battery pack guide tracks
clean. Clean plastic parts with a clean
and dry cloth.
Error codes
The error codes help you do
troubleshooting on the battery pack
and/or the battery pack charger while it
charges:
LED screen
Possible faults
Possible step
No LEDs come on,
battery pack does not
charge or function in
product(s)
Internal fuse is blown
Speak to an approved service center.
Red LED flashes
Irregular cell voltage
Speak to an approved service center.
Red LED comes on,
Green LEDs 2, 3 and 4
come on
Battery pack is charged
too much
Remove from charger, install in product
and drain battery pack. Battery pack
charger may be defective. Speak to an
approved service center.
Red LED comes on,
Green LED 2 comes on
Battery pack is not
sufficiently charged
Stop using battery pack in product and
charge immediately.
Red LED comes on,
Green LED 2 flashes
after battery pack drains
or in ambient air
Internal battery pack
temperature is too low
The internal temperature in the battery
pack must be between -10°C (14°F) and
75°C (167°F). The ambient environment
temperature may be too low to use the
battery pack and product. The battery
pack may have been in too cold of
an environment. Let the internal cell
temperature increase higher than -10°C
(14°F) for battery pack draining, or more
than 5°C (41°F) for charging.
Red LED comes on,
Green LED 4 flashes
after battery pack drains,
or in ambient air
Internal battery pack
temperature is too high
The internal temperature in the battery
pack must be between -25°C (-13°F) and
50°C (122°F). The ambient environment
temperature may be too high to use in
the battery pack and product. The rate
of battery pack draining, along with
ambient environment temperature, may
be sufficently high to cause the battery
pack to be too hot. Let the battery pack
cool before charging or more use. Let the
internal cell temperature cool less than
45°C (113°F) for battery pack draining.
Red LED comes on,
Green LED 2 flashes
during charging, or
when the battery pack is
installed on the charger
Internal battery pack
temperature is too low for
charging
Move the charger and battery pack to a
location where the internal temperature of
the battery pack can be between
5°C (41°F) and 60°C (140°F).
Red LED comes on,
Green LED 4 flashes
during charging or when
the battery pack is
installed on the charger
Internal battery pack
temperature is too high
for charging
The charger and battery pack must be
moved to a location where the internal
temperature of the battery pack can cool
to between -5°C (23°F) and 45°C (113°F).
• The battery pack cannot be charged if
the battery pack temperature is higher
than 45°C (113°F). In that condition, the
battery pack charger actively lets the
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