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NO LIGHT - on any charge pocket
No light on a charge pocket means there is no battery pack installed,
• or the battery pack in the pocket is not fully inserted,
• or a defective or damaged battery pack is installed,
• or the charger is defective or damaged. Refer to Battery Charger Help.
NO LIGHT - on all charge pockets
No light means there is no AC power available to the battery charger or there is power but there are no batteries in any
charging bay.
Battery Charger Help
The following is intended as an aid in determining whether the battery pack or the charger may be malfunctioning:
Problem Cause Solution
Battery pack does not fit in
charging pocket.
Different manufacturer's battery
pack, or there is an object in the
charging pocket.
Check if the battery pack has part number MX-
7A380BATT / MX7392BATT or a Low Temperature (CS)
Battery : MX7A381BATT / MX7393BATT / MX7396BAT-
TERY part number on the label. If not, do not use.
Remove the object from the charging pocket.
No battery pack in charger, but
any of the LEDs are on.
Dirt or foreign objects are in the
charging pocket.
Unplug charger from AC supply. Remove any dirt or for-
eign objects from the charging pocket. See Charger
Cleaning, Storage and Service (page 13-8). If the LEDs
continue to remain ON, the charger may be defective.
Return charger to an authorized service center.
Charger is plugged into a live
outlet, battery pack is inserted,
but RED LED is OFF and no
other LEDs are on, or all LEDs
are off.
Battery pack is not making contact
with battery charge terminals in the
charging pocket.
Push the battery pack in firmly until you hear a click as
the battery catch connects with the charger pocket. Do
not “slam” the battery pack into the charging pocket.
Charger is plugged into a live
outlet, battery pack is inserted,
but RED LED is OFF and no
other LEDs are on, or all LEDs
are off.
Faulty battery pack. Replace battery pack.
Charger is plugged into a live
outlet, battery pack is inserted,
but RED LED is OFF and no
other LEDs are on, or all LEDs
are off.
New battery pack, same result. Contact Technical Assistance (page 16-1) for replace-
ment options.
When you first put a fully
charged battery pack in the
charging pocket, the RED LED
comes on, indicating the bat-
tery pack is charging.
During the first few minutes, the
battery charger checks the battery
pack for correct voltage and charge
state. During this time the LED is
RED and is continuously ON. After
charging is complete, the LED is
GREEN.
There is nothing wrong with the battery pack or charger.
Do not “top off” a fully charged battery pack by repeated-
ly placing it in the charging pocket. The battery pack may
overheat and be damaged.
LED is flashing RED at any
pocket.
Current could not be sourced
through the battery pack due to
age, exhaustion or damage to the
cell(s). The battery pack does not
communicate with the charger.
Contact Technical Assistance (page 16-1) for battery
pack replacement options.
LED is flashing RED at any
pocket.
The charger’s timeout period has
expired.
Make sure that the battery pack temperature is within
specification and retry charging. Contact Technical
Assistance (page 16-1) if problem repeats, for battery
pack replacement options.