Schumacher Electric SSF-1000A, Owner'S Manual

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9
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There are some important facts to keep in mind when charging a battery.
When the display indicates 77% charged, the battery has been charged •
enough to start most vehicles.
When the battery is fully charged, the display will indicate 100% charged.
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The battery % shown in tester mode is an estimate based on the battery •
voltage.
The battery % shown in charger mode is an estimate of the relative
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charge in the battery compared to the charge it should have if the
charging process is allowed to complete and can be used to estimate
the relative charge time. The lower the % shown the longer the charge
time for a given battery.
The battery % shown in charger mode is an indication of the relative
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progress of the charging process. The higher the battery % displayed, the
less charge time remains.
The more a battery is discharged, the faster it absorbs charge from a
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charger. That means that the battery % increases faster at the beginning
of the charging process than at the end. In other words, it takes longer for
the battery to absorb the last few percents of charge than the first several
percents.
Automatic Charging Mode 11.3
When an Automatic Charge is performed, the charger switches to the
Maintain Mode (see below) automatically after the battery is charged.
Aborted Charge 11.4
If charging can not be completed normally, charging will abort. When
charging aborts, the charger’s output is shut off and the CONNECTED
(red) LED will blink. In that state, the charger ignores all buttons. To reset
after an aborted charge, either disconnect the battery or unplug the
charger.
Desulfation Mode 11.5
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. Activation of the special Desulfation Mode is
indicated by the CHARGING (yellow) LED blinking. If successful, normal
charging will resume after the battery is desulfated. The CHARGING
(yellow) LED will then stop blinking and stay lit. Desulfation could take up
to 10 hours. If desulfation fails, charging will abort and the CONNECTED
(red) LED will blink.
Completion of Charge 11.6
Charge completion is indicated by the CHARGED (green) LED. When lit,
the charger has stopped charging and switched to the Maintain Mode of
operation. If the DEEP CYCLE battery type is selected, the CHARGED
(green) LED comes on when the battery is charged enough for normal
use.