CHK
ADJ
CHECKING AND CHARGING THE BATTERY
3-28
Charging method using a variable-current (voltage) charger
Measure the open-circuit
voltage prior to charging.
Connect a charged 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.
By turning the charging
voltage adjust dial, set the
charging voltage at 20 ~ 24 V.
Adjust the voltage so that the Monitor the amperage for
current is at the standard 3 ~ 5 minutes to check if the
charging level. standard charging current is
reached.
Set the time according to the
charging time suitable for the
open-circuit voltage.
Refer to “Battery condition
checking steps.
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
If the current does not
exceed the standard
charging current after 5
minutes, replace the battery.
NOTE:
Voltage should be measured 30 minutes after the
machine is stopped.
NOTE:
Set the charging voltage at 16 ~ 17 V. (If the set-
ting is lower, charging will be insufficient. If too
high, the battery will be over-charged.)
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