3 - 28INSPADJBATTERY INSPECTION AND CHARGINGCharging method using a variable voltage chargerMeasure the open-circuitvoltage prior to charging.Connect a charger andammeter to the batteryand start charging.Is the amperage higherthan the standard charg-ing amperage written onthe battery?NOYESCharger AmmeterAdjust the voltage to obtainthe standard chargingamperage.Set the timer to the chargingtime determined by the open-circuit voltage.Refer to “BATTERY INSPEC-TION AND CHARGING”.Adjust the charging voltage to20 ~ 25 V.Monitor the amperage for 3 ~5 minutes. Is the standardcharging amperageexceeded?NOYESIf the amperage does notexceed the standard charg-ing amperage after 5 min-utes, replace the battery.If the required charging time exceeds 5 hours, it is advisable to checkthe charging amperage after 5 hours. If there is any change in theamperage, readjust the voltage to obtain the standard chargingamperage.Leave the battery unused for more than 30 minutes before measuringits open-circuit voltage.12.8 V → Charging is complete.12.0 ~ 12.7 V → Recharging is required.Under 12.0 V → Replace the battery.Leave the battery unused for morethan 30 minutes before measuring itsopen-circuit voltage.Set the charging voltage to 16 ~ 17 V.(If the charging voltage is lower, charg-ing will be insufficient, if it is higher, thebattery will be over-charged.)NOTE:NOTE:
