Operating Instructions - Schumacher Electric SE-125A Owner's Manual

display the battery's state of charge. For
this reason, you should depend on the
FULL CHARGE LED indicator.
BATTERY TYPE SWITCH
Use this switch to select the type of battery.
• STD or SLI – Used to start and run
engines for cars, trucks and motorcycles,
these batteries have vent caps and
are marked "low maintenance" or
"maintenance-free". These batteries are
designed to deliver a high cranking amp
and have a greater plate count.
• DEEP-CYCLE – Deep-cycle batteries
are usually marked as "Deep-Cycle"
or "Marine". Deep-cycle batteries are
usually larger than the other types. This
type of battery has less instant energy
but somewhat greater long-term energy
delivery than regular batteries. Deep cycle
batteries have thicker plates and can
survive a number of discharge cycles.
WARNING: The manual setting must
be monitored and stopped when the
battery is charged. Overcharging will
damage the battery.

11. OPERATING INSTRUCTIONS

WARNING: A spark near the battery may
cause an explosion.
IMPORTANT: Do not start the vehicle with
the charger connected to the AC outlet, or
it could result in damage to the charger.
CHARGING A BATTERY
IN 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 an electrical
outlet.
8. Select the battery type and charge rate.
9. When charging is complete,
disconnect the charger from the AC
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.
CHARGE RATE SELECTOR SWITCH
Use this switch to set the maximum
charge rate to one of the following:
• 2A SLOW CHARGE – For small
batteries, such as those commonly used
in garden tractors, snowmobiles and
motorcycles. The 2A rate can be used to
warm or trickle charge larger batteries.
• 10A, 12A OR 15A FAST CHARGE –
For automotive, marine and deep-cycle
batteries. Not intended for industrial
applications.
• ENGINE START – Provides additional
amps for cranking an engine with a
weak or run-down battery. Always use in
combination with a battery.
VOLTAGE SELECTOR SWITCH
Use this switch to set the charger for a 6V,
12V or 24V battery.
NOTE: These chargers are not
recommended for 8 or 16 volt systems.
4. Connect the charger to the electrical
outlet.
5. Select the battery type and charge rate.
6. When charging is complete,
disconnect the charger from the AC
power, disconnect the negative clamp,
and finally the positive clamp.
7. A marine (boat) battery must be
removed and charged on shore.
MANUAL CHARGING MODE
A manual charger will continue to charge
and will not shut off. You must keep a
visual check on the ammeter to determine
when the battery is charged. Be sure to
monitor the charging process and stop it
when the battery is charged. Not doing
so may cause damage to your battery
or result in other property damage or
personal injury. See the CALCULATING
CHARGE TIME section to help determine
charging time.
AUTOMATIC CHARGING MODE
When an Automatic Charge is performed,
the charger switches to the maintain
mode automatically after the battery is
charged.
COMPLETION OF CHARGE
When the FULL CHARGE (green) LED
is lit, the charger has stopped charging
and switched to the Maintain Mode of
operation.
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