Charging Battery Removed From The Vehicle; Using Engine Start - Schumacher SC-7500A SpeedCharge Owner's Manual

Fully automatic microprocessor controlled battery charger with engine starter for 6 and 12-volt batteries
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CHARGING BATTERY REMOVED
FROM THE VEHICLE:
POSITIVE
BATTERY
24", 6 GAUGE CABLE
1. Note the polarity of the battery posts by
checking the identification marks on the
battery: POSITIVE (POS, P or +) and
NEGATIVE (NEG, N or -). The positive
post is usually larger than the negative
post.
2. Attach at least a 24-inch-long, 6-gauge
(AWG), insulated battery cable to
NEGATIVE (NEG, N or -) battery post.
Rock and twist the clamp back and forth
to be sure a solid electrical connection
is made.
3. Connect the red (POSITIVE) output
clamp to the POSITIVE battery post.
Rock and twist the clamp back and forth
to be sure a solid electrical connection
is made.
4. Position yourself as far away from the
battery as possible, and then connect
the black (NEGATIVE) output clamp to
the free end of the cable.
5. Plug the power cord into a 120V AC
2-prong wall outlet. The charger will be set
to the default state of 12V REGULAR bat-
tery type, no charge rate (tester mode).
6. Press the appropriate control buttons
to select the desired charge rate and
battery type. Within a few seconds, the
CHARGING (yellow) LED should light
and the charging process should start.
If the CHECK (red) LED is on, check for
correct cable connections.
7. To disconnect the charger, unplug its
power cord before attempting to discon-
nect the charger clamps. Then, standing
away from the battery, remove the out-
put clamp from the NEGATIVE battery
post. Finally, remove the output clamp
from the POSITIVE battery post.
8. Clean and store the charger in a dry
location.
NEGATIVE
BATTERY
CHARGER
POWER
CORD
TO
GROUNDED
POWER
OUTLET

USING ENGINE START

Your battery charger can be used to jump
start your car if the battery is low. Fol-
low these instructions on how to use the
ENGINE START feature.
IMPORTANT: Follow all safety instructions
and precautions when charging your bat-
tery. Wear complete eye protection and
clothing protection. Charge your battery
in a well-ventilated area.
IMPORTANT: Using the ENGINE START
feature WITHOUT a battery installed in
the vehicle could cause damage to the
vehicle's electrical system.
1. For battery connections, see page 6 and
follow instructions 1 – 6 of CHARGING
BATTERY IN THE VEHICLE. With the
charger plugged in and connected to the
battery of the vehicle, set the CHARGE
RATE to 75A START. Only the 75A
START, CHARGING, and VOLTAGE
LEDs should be lit, unless the 6V
REGULAR battery type has been se-
lected. In that case, the 6V REGULAR
LED will also be lit.
2. Crank the engine for no more than 5
seconds. If engine does not start, wait
3 minutes before cranking again.
3. After the engine starts, unplug the power
cord before disconnecting the output
clamps from the battery.
4. Clean and store the charger in a dry
location.
NOTE: During the starting sequence listed
above, the charger is set to one of three
states.
1. Wait for cranking - The charger waits
until the engine is actually being cranked
before delivering 75 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 5 minutes. (If the charger resets,
it sets itself for a 2A charge and 12V
REGULAR battery.) While waiting for
cranking, the digital display shows
the battery voltage (it can't be set to
percent).
2. Cranking - When cranking is detected,
the charger will automatically deliver
up to its maximum output (at least75A)
as required by the starting system for
7

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