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.

11.operating instructions

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.

11.1CHARGING: 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.

11.2AUTOMATIC SHUT OFF: 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.

11.3ABORTED CHARGE: 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.

11.4DESULFATION MODE: 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.

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Schumacher SC-8020A owner manual Engine Starting Notes, Operating instructions