Schumacher Electric SC-10030A Owner's Manual page 13

NOTE: The charger automatically switches between Charge Mode and
Maintain Mode as necessary. The CHARGED (green) LED will cycle on when
the battery is at full charge and off when the voltage drops below a preset level
and the charger goes into Charge Mode.
General Charging Notes
Fan: The charger is designed to control its cooling fan for efficient operation.
Consequentially, it is normal for the fan to start and stop when maintaining a
fully charged battery. The fan does not run in Tester Mode. Keep the area near
the charger clear of obstructions to allow the fan to operate efficiently.
Restart: If the Charge Mode is changed after charging has started (by
pressing the CHARGE RATE or BATTERY TYPE button), the charging process
will restart.
Voltage: The voltage displayed during charging is the charging voltage and is
usually higher than the battery's resting voltage.
Using the Engine Start feature
Your battery charger can be used to jumpstart your car if the battery is low.
Follow these instructions on how to use the ENGINE START feature.
Follow all safety instructions and precautions for charging
your battery. Wear complete eye protection and clothing protection. Charge
your battery in a well-ventilated area.
Using the ENGINE START feature WITHOUT a battery
installed in the vehicle could cause damage to the vehicle's electrical system.
NOTE: If you have charged the battery and it still will not start your car, do not
use the engine start feature, or it could damage the vehicle's electrical system.
1. With the charger plugged in and connected to the battery and chassis (see
section 6), press the BATTERY SIzE button until the ENGINE START LED
is lit. The display mode will be automatically set to VOLTAGE.
2. Crank the engine until it starts or 3 seconds pass. If the engine does not
start, wait 3 minutes before cranking again. This allows the charger and
battery to cool down.
NOTE: During extremely cold weather, or if the battery is under 2 volts, charge
the battery for 5 minutes before cranking the engine.
3. If the engine fails to start, charge the battery for 5 more minutes before
attempting to crank the engine again.
4. After the engine starts, move the charge rate selector switch to the off
position and unplug the AC power cord before disconnecting the battery
clips from the vehicle.
5. Clean and store the charger in a dry location.
NOTE: If the engine does turn over but never starts, there is not a problem
with the starting system; there is a problem somewhere else with the vehicle.
STOP cranking the engine until the other problem has been diagnosed and
corrected.
Engine Starting Notes
During the starting sequence listed above, the charger is set to one of three
states.
Wait for cranking – The charger waits until the engine is actually being
cranked before delivering the 100 amps for engine start. The charger delivers
charge at a rate of up to 12 amps while waiting and will reset if the engine is
not cranked within 15 minutes. (If the charger resets, it sets itself to the default
start up settings). While waiting for cranking, the digital display shows the
battery voltage (it can not be set to percent).
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