Schumacher BATTERY EXTENDER BE01248 Owner's Manual page 11

AUTOMATIC CHARGING MODE
When an automatic charge is performed, the charger switches to the maintain
mode automatically after the battery is charged.
ABORTED CHARGE
If charging cannot be completed normally, charging will abort. When charging
aborts, the charger's output is shut off and the Clamps Reversed/Bad Battery
(red) LED will light. Do not continue attempting to charge this battery. Check the
battery and replace, if necessary.
DESULFATION MODE
If the battery is left discharged for an extended period of time, it could become
sulfated and not accept a normal charge. If the charger detects a sulfated battery,
the charger will switch to a special mode of operation designed for such batteries.
If successful, normal charging will resume after the battery is desulfated.
Desulfation could take 8 to 10 hours. If desulfation fails, charging will abort and
the Clamps Reversed/Bad Battery (red) LED will light.
COMPLETION OF CHARGE
Charge completion is indicated by the Charged/Maintaining (green) LED.
When lit, the charger has switched to the maintain mode of operation.
MAINTAIN MODE (FLOAT-MODE MONITORING)
When the Charged/Maintaining (green) 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. 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
The BE01248 maintains both 6 and 12 volt batteries, keeping them at full charge.
NOTE: The maintain mode technology 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.
• 11 •