Schumacher Automatic /Maintainer SP2 - Manual (Page 11)

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Make sure to place the charger on a dry, non-flammable
surface, such as metal or concrete.
Permanent Ring Connectors
1. To permanently attach to a battery, loosen and remove each nut
from the bolt at the battery terminals.
2. Connect the red POSITIVE connector ring to the POSITIVE
(POS, P, +) battery terminal.
3. Connect the black NEGATIVE connector ring to the NEGATIVE
(NEG, N, -) battery terminal.
4. Replace and tighten the nuts to secure.
5. Connect the ring connector cable assembly to the charger. Take
care to keep both wires and plug away from hot and moving parts.
6. Plug the charger power cord into a grounded 120V AC
electrical wall outlet. Make sure to place the charger on a dry,
non-flammable surface, such as metal or concrete.
Automatic Charging Mode
When an Automatic Charge is performed, the charger switches to the
Maintain Mode (see below) 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 CHARGING
(yellow) LED will blink. To reset after an aborted charge, unplug
the charger from the AC outlet, wait a few moments, then plug it back in.
Desulfation Mode
Desulfation could take 10 hours. If desulfation fails, charging will abort
and the CHARGING (yellow) LED will blink.
Completion of Charge
Charge completion is indicated by the CHARGED (green) LED.
When lit, the charger has stopped charging and switched to the
Maintain Mode of operation.
Maintain Mode (Float-Mode Monitoring)
When the CHARGED (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