Charging method using a constant voltage
charger
NOTE:
Leave the battery unused for more than 30
minutes before measuring its open-circuit
voltage.
NOTE:
Set the charging time to a
maximum of 20 hours.
Measure the open-circuit
voltage
Prior to charging.
Connect a charger and
ammeter to the battery and
start charging.
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 ～12.7 V Recharging is required.
Under 12.0 V Replace the battery
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