Operating Instructions - Schumacher Electric SC1389 Owner's Manual

flash for 3 seconds, and then turn solid. If
no battery type is selected, the "OFF" LED
will light and the bank will turn off. To check
the battery type setting during charging,
press the Select button.
FLASHING RED –
The connections are reversed.

11. OPERATING INSTRUCTIONS

WARNING: A spark near the battery may
cause an explosion.
CHARGING A BATTERY
INSIDE THE BOAT
1. Turn off all the boat's accessories.
2. Clean the battery terminals.
3. Make sure the charger is unplugged
from the AC power outlet.
4. Lay the AC/DC cables away from any
fan blades, belts, pulleys and other
moving parts.
5. Connect the charger to up to three
batteries, following the instructions
listed in section 8.
6. Connect the charger to an electrical
outlet.
7. The Power On LED will light and
the battery type LED for the previously
selected type will be lit (the factory default
battery type is AGM). If the battery type
is not changed, charging will start in 30
seconds, if connected to a battery.
8. To change the battery type, press and
hold the
and then toggle the button to select
the desired battery type. The LED will
flash for 3 seconds, and then turn solid.
NOTE: If no battery type is selected,
the "OFF" LED and the red
be lit (the bank is turned off).
9. If there is a battery connected to
that bank, charging will begin in
automatically, and the percentage LEDs
will light, to indicate charging status.
NOTE: If a battery type is selected and
no battery is connected, the battery type
LED and the red
10. During charging, the four green LEDs
will blink and then turn solid, from right
to left, to indicate the progress of the
charge. The higher percentage LED
is blinking (the charger is working to
reach that percentage), and the lower
percentage LEDs are solid on (the
battery has reached that percentage
of charge). When the battery is fully
charged, all four LEDs will be solid.
NOTE: To check the battery type
setting during charging, press the
Select button.
Select button for 3 seconds,
LED will be lit.
one of the following problems:.
• Aborted charge
• "OFF" is selected
• Battery not connected
See Troubleshooting for more information.
11. When the battery is fully charged, the
12. When charging multiple batteries, the
13. When charging is complete,
REVERSED CONNECTIONS
If the connections are reversed, the red
LED will flash. When the connections
are corrected, charging will begin
automatically. If the connections are not
corrected after 15 minutes, the charger
will switch to the next bank in line and
begin charging.
ABORTED CHARGE
If the charger has detected a problem
with the battery and charging cannot be
completed normally, charging will abort.
When charging aborts, the charger's
output is shut off and the red
will light. Do not continue attempting
to charge the battery. Have the battery
checked and replace, if necessary.
LED will
COMPLETION OF CHARGE
When the green 100% LED is lit, the
battery is fully charged and the charger
has switched to the Maintain Mode of
operation.
MAINTAIN MODE
(Float Mode Monitoring)
When the green 100% 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 period, it will go into
Abort mode. 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.
• 8 •
SOLID RED – The charger has detected
charger will go into Maintain mode.
charger will employ one bank at a
time, with 15 minutes of charging for
each bank.
disconnect the charger from the AC
power, remove the red (positive) ring
terminal from the battery post, and
then the black (negative) ring terminal
from the battery post.
LED