2-8
Diagnosis mode
ELEC
–
+
Diagnosis mode
Recoverable errors of battery pack or
battery charger
If the battery pack or battery charger has the
errors, the following procedure can be used to
access the error diagnosis mode and confirm
the details regarding the error of the battery
pack or battery charger.
1. If there is an error when the battery capacity
indicator button “ ”
1
on the battery pack is
pushed or connect the battery charger, the
battery capacity indicator lamps [1]/[3] and
[2]/[4] turn on alternately, or the lamps [1]/[2]
and [3]/[4] turn on alternately.
When the battery capacity indicator lamps
turn on alternately, the residual battery
capacity is not displayed.
2. Hold down the battery capacity indicator but-
ton “ ”
1
for 10 seconds.
3. The lighting display of the battery capacity
indicator lamps indicates the error of the bat-
tery pack or battery charger.
TIP
• If the battery pack or battery charger is oper-
ating normally, the battery capacity indicator
lamps indicate the residual battery capacity.
• If there are multiple errors, only the latest er-
ror will be displayed.
• The error diagnosis mode can be accessed
whether the battery charger is connected or
disconnected.
or
Turn on
alternately
Turn on
alternately
3
2
1
4
3
2
1
4
3
2
1
4
3
2
1
4
1
Off
On
