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CHK
ADJ
CHECKING AND CHARGING THE BATTERY
Measure the open-circuit
voltage prior to charging.
Connect a charger and am-
meter to the battery and
start charging.
NOTE:
Leave the battery unused for more than
30 minutes before measuring its open-
circuit voltage.
Is the amperage higher
than the standard charging
amperage written on the
battery?
Charge the battery until the charging
voltage reaches 15 V.
This type of battery charger cannot
charge an MF battery. A variable-
voltage charger is recommended.
Leave the battery unused for more
than 30 minutes before measuring its
open-circuit voltage.
12.8 V ! Charging is complete.
12.0 X 12.7 V ! Recharging is re-
quired.
Under 12.0 V ! Replace the battery.
NOTE:
Set the charging time to a maximum of
20 hours.
YES NO
Voltmeter
Charger
Ammeter
CAUTION:
Constant amperage chargers are not
suitable for charging MF battries.
Charging method using a constant-voltage charger