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CHK
ADJ
CHECKING AND CHARGING THE BATTERY
Charging method using a variable-current (voltage) charger
Measure the open-circuit
voltage prior to charging.
Connect a charger and
AMP meter to the battery
and start charging.
Make sure that the current
is higher than the standard
charging current written on
the battery.
NO
YES
Charger
AMP meter
Adjust the voltage so that the
current is at the standard charg-
ing level.
Set the time according to the
charging time suitable for the
open-circuit voltage.
Refer to “Battery condition
checking steps”.
By turning the charging voltage
adjust dial, set the charging at
20 ~ 24 V.
Monitor the amperage for 3 ~ 5
minutes to check if the standard
charging current is reached.
NO
YES
If the current does not exceed
the standard charging current
after 5 minutes, replace the bat-
tery.
If charging requires more than 5 hours, it is advisable to check the charging
current after a lapse of 5 hours. If there is any change in the amperage,
readjust the voltage to obtain the standard charging current.
Measure the battery open-circuit voltage after leaving the battery unused
for more than 30 minutes.
12.8 V or more --- Charging is complete.
12.7 V or less --- Recharging is required.
Under 12.0 V --- Replace the battery.
Voltage should be measured 30
minutes after the machine is
stopped.
Set the charging voltage at
16 ~ 17 V. (If the setting
lower, charging will be insuffi-
cient. If too high, the battery
will be over-charged.
NOTE:
NOTE: