Schumacher SC-8020A - Manual (Page 9)

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remaining cool down time in seconds. It starts at 180 and counts down
to 0. The ENGINE START LED blinks once every second. During the
cool down period, no current is delivered to the battery. After 3 minutes,
the ENGINE START LED will stop blinking and will light continuously,
indicating that another crank cycle can be started. The digital display
will change from displaying the countdown back to displaying the
battery voltage. The CHARGING LED will then be lit.
ENgiNE STARTiNg NOTES:
If the battery is disconnected during the cool down period, the charger •
will reset.
OpERATiNg iNSTRUCTiONS 11.
OVERViEW: Using this battery charger is very simple. First, connect
the battery and AC power. Then select the appropriate BATTERy TyPE
and BATTERY SIZE for your battery. The charger will then do everything
automatically. This section explains a few details.
ChARgiNg:
11.1 If the charger does not detect a properly connected battery,
the CONNECTED LED will not light. Charging will not begin unless the
CONNECTED LED is on. When charging begins, the CHARGING LED will
be lit.
AUTOMATiC ShUT OFF:
11.2 When the SMALL BATTERy or MEDIUM TO
LARGE BATTERY SIZE is selected, the charger is set to perform an auto-
matic charge. When an automatic charge is performed, the charger stops
charging automatically after the battery is charged.
ABORTED ChARgE:
11.3 If charging can’t be completed normally, charging
will be aborted. When charging is aborted, the charger’s output is shut off
and the digital display blinks on and off. In that state, the charger ignores
all buttons. To reset from after an aborted charge, either disconnect the
battery or unplug the charger.
DESULFATiON MODE:
11.4 If a battery is left discharged for an extended
period, 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. Activation of the special
desulfation mode is indicated by blinking the CHARGING LED. If suc-
cessful, normal charging will resume after the battery is desulfated. The
CHARGING LED will then stop blinking and light continuously. Desulfation
could take up to 10 hours. If desulfation fails, charging will be aborted and
the digital display will blink.