Aborted Charge

Models XC6 and XC10: If charging cannot be completed normally, charging will abort.

When charging aborts, the charger’s output is shut off and the CHARGING LED will

flash. In that state, the charger ignores all buttons. To reset after an aborted charge, unplug the charger from the AC outlet, wait a few moments and plug it back in.

Aborted Charge

Models XC12 and XCS15: If charging cannot be completed normally, charging will abort. When charging aborts, the charger’s output is shut off and the digital display will show an error code (see the Troubleshooting section for a description of the error codes). In that state, the charger ignores all buttons. To reset after an aborted charge, unplug the charger from the AC outlet, wait a few moments and plug it back in.

Desulfation Mode

Desulfation could take up to 8 hours. If desulfation fails, charging will abort. See Aborted Charge section.

Completion Of Charge

Charge completion is indicated by the CHARGED LED . When lit, the charger has stopped charging and switched to the Maintain Mode of operation.

Maintain Mode (Float-Mode Monitoring)

When the CHARGED LED is lit, the charger has started Maintain Mode. In this mode, the charger keeps the battery fully charged by delivering a small current when necessary. The voltage is maintained at a level determined by the battery type selected.

NOTE: If the charger has to provide its maximum maintain current for a continuous

12 hour period it will go into Abort Mode (see Aborted Charge section). This is usually caused by a drain on the battery or the battery could be bad. Make sure there are no loads on the battery. If there are remove them. If there are none, have the battery checked or replaced.

Maintaining a Battery (2A Charge Rate)

The Schumacher XC line are battery chargers with a maintenance setting that maintains both 6 and 12 volt batteries, keeping them at full charge. On this setting, it can charge small batteries and maintain both small and large batteries. If you are maintaining a fully charged large battery, you will properly utilize the maintenance setting. However,

if you use the maintenance setting to charge a large battery, such as a marine deep cycle battery, that was not fully charged, you may lose some of the battery’s capacity. This would cause the large battery to be unable to hold a charge and become useless. Therefore, we do not recommend charging a large battery on the maintenance setting.

NOTE: The maintain mode technology utilized in Schumacher’s chargers allows you to safely charge and maintain a healthy battery for extended periods of time. However, problems with the battery, electrical problems in the vehicle, improper connections

or other unanticipated conditions could cause excessive current draws. As such, occasionally monitoring your battery and the charging process is recommended.

Using the Battery Voltage Tester (Models XC12 and XCS15 only)

1.With the charger unplugged from the AC outlet, connect the charger to the battery following the instructions given in sections 6 and 7.

2.Plug the charger AC power cord into the AC outlet, following the instructions given in section 8.

3.If necessary, press the BATTERY TYPE button until the correct type is indicated.

4.Read the voltage on the digital display. Keep in mind that this reading is only a battery voltage reading; a false surface charge may mislead you. Compare the reading to the chart below.

6 Volt Battery

12 Volt Battery

Battery Condition

Voltage Reading

Voltage Reading

 

6.4 or More

12.8 or More

Charged

6.1 to 6.3

12.2 to 12.7

Needs Charging

Less than 6.1

Less than 12.2

Discharged

6

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Schumacher XC6, XCS15, XC10 Aborted Charge, Desulfation Mode, Completion Of Charge, Maintain Mode Float-Mode Monitoring