Operating Instructions - Schumacher SC1306 Owner's Manual

CLAMPS REVERSED (red) LED
flashing: The connections are reversed.
BAD BATTERY (red) LED lit:
The charger has detected a problem
with the battery. See Troubleshooting
for more information.
NOTE: See Operating Instructions for a
complete description of the charger modes.
RATE SELECTION BUTTON
Use this button to select one of the following:
6<>2A CHARGE/MAINTAIN –
For charging small and large batteries. Not
recommended for industrial applications.
The charger will automatically adjust the
charging current, based on battery size,
in order to charge the battery completely,
efficiently and safely.
20A BOOST –
For quickly adding energy to a severely
discharged or large capacity battery
prior to ENGINE START. The unit will
automatically switch to 6A<>2A CHARGE
after the 20A BOOST operation has
completed.
80A ENGINE START –
Provides additional amps for cranking an
engine with a weak or run-down battery.
Always use in combination with a battery.

11. OPERATING INSTRUCTIONS

WARNING: A spark near the battery may
cause an explosion.
CHARGING A BATTERY
N THE VEHICLE
1. Turn off all the vehicle's accessories.
2. Keep the hood open.
3. Clean the battery terminals.
4. Place the charger on a dry, non-
flammable surface.
5. Lay the AC/DC cables away from any
fan blades, belts, pulleys and other
moving parts.
6. Connect the battery, following the
precautions listed in sections 6 and 7.
7. Connect the charger to a live
grounded 120V AC outlet.
8. Select the battery type and charge rate.
9. Press the Start/Stop button to begin
charging immediately. If the button is
not pressed, charging will begin within
ten minutes. It will finish automatically.
10. When charging is complete,
disconnect the charger from the AC
BATTERY TYPE BUTTON
Use this button to select the battery type.
– Used in cars, trucks and motorcycles,
these batteries have vent caps and
are often marked "low maintenance" or
"maintenance-free". This type of battery is
designed to deliver quick bursts of energy
(such as starting engines) and has a greater
plate count. The plates are thinner and have
somewhat different material composition.
Regular batteries should not be used for
deep-cycle applications.
– The Absorbed Glass Mat
construction allows the electrolyte to be
suspended in close proximity with the
plate's active material. In theory, this
enhances both the discharge and recharge
efficiency. The AGM batteries are a variant
of Sealed VRLA (valve regulated lead-acid)
batteries. Popular uses include high-
performance engine starting, power sports,
deep-cycle, solar and storage batteries.
– The electrolyte in a GEL cell has a
silica additive that causes it to set up or
stiffen. The recharge voltages on this type of
cell are lower than those for other styles of
lead-acid battery. This is probably the most
sensitive cell in terms of adverse reactions
to overvoltage charging. Gel batteries are
best used in VERY DEEP cycle application
and may last a bit longer in hot weather
applications. If the wrong battery charger is
used on a gel cell battery, poor performance
and premature failure will result.
power, remove the clamps from the
vehicle's chassis, and then remove
the clamp from the battery terminal.
CHARGING A BATTERY
OUTSIDE OF THE VEHICLE
1. Place battery in a well-ventilated area.
2. Clean the battery terminals.
3. Connect the battery, following the
precautions listed in sections 6 and 7.
4. Connect the charger to a live
grounded 120V AC outlet.
5. Select the battery type and charge rate.
6. Press the Start/Stop button to begin
charging immediately. If the button is not
pressed, charging will begin within ten
minutes. It will finish automatically.
7. When charging is complete,
disconnect the charger from the AC
power, disconnect the negative clamp,
and finally the positive clamp.
8. A marine (boat) battery must be
removed and charged on shore.
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