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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 Schumacher SP2 is a battery charger/maintainer that maintains
both 6 and 12 volt batteries, keeping them at full charge. It can charge
small batteries and maintain both small and large batteries. If you are
maintaining a fully charged large battery, you are properly utilizing the
battery charger. However, if you use the battery charger 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 with this unit.
NOTE: The maintain mode technology utilized in Schumacher
maintainers allows you to safely charge and maintain a healthy
battery for extended periods of time. However, problems with the
battery, electrical problems in your vehicle, improper connections or
other unanticipated conditions could cause excessive current draws.
As such, occasionally monitoring your battery and the charging
process is recommended.
13. MAINTENANCE INSTRUCTIONS
13.1 Before performing maintenance, unplug and disconnect the
battery charger (see Sections 6, 7 and 8).
13.2 After use, unplug the charger and use a dry cloth to wipe all
battery corrosion and other dirt or oil from the terminals, cords
and the charger case.
13.3 Ensure that all of the charger components are in place, securely
attached and in good working condition, for example, the plastic
boots on the battery clips.
13.4 Servicing does not require opening the unit, as there are no
user-serviceable parts.
13.5 All other servicing should be performed by qualied service
personnel.