Operating Instructions; Charging Battery In The Vehicle - Schumacher SC-7500A SpeedCharge Owner's Manual

NOTE: A marine (boat) boat battery must be removed and charged on shore. To charge
it on board requires equipment specially designed for marine use.
IMPORTANT: Follow all safety instructions and precautions when charging your battery.
Wear complete eye protection and clothing protection. Charge your battery in a well-
ventilated area.
CHARGING BATTERY IN THE
VEHICLE:
1. Avoid personal injury by keeping clear
of fan blades, belts, pulleys and other
engine parts.
2. Avoid damaging the charger by keep-
ing the power cord and output cords
away from the hood, door or moving
engine parts.
3. 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.
4. Identify which battery post is ground-
ed or connected to the chassis. THIS
IS NORMALLY THE NEGATIVE
POST.
NEGATIVE GROUNDED SYSTEM
5. Connecting to a negative-grounded
system: Connect the red (POSITIVE)
output clamp to the POSITIVE post of
the battery. Rock and twist the clamp
back and forth to be sure a solid
electrical connection is made. Then
connect the black (NEGATIVE) output
clamp to a heavy, unpainted metal

OPERATING INSTRUCTIONS

6
part of the chassis or engine block,
away from the battery (see figure).
DO NOT connect clamp to negative
battery post, carburetor, fuel line or
sheet metal part.
Connecting to a positive-grounded
system: Connect the black (NEGA-
TIVE) output clamp to the NEGATIVE
post of the battery. Rock and twist
the clamp back and forth to be sure
a solid electrical connection is made.
Then connect the red (POSITIVE)
output clamp to a heavy, unpainted
metal part of the chassis or engine
block, away from the battery. DO NOT
connect clamp to positive battery
post, carburetor, fuel line or sheet
metal part.
6. Plug power cord into a 120V AC
2-prong wall outlet. The charger will
be set to the default state of 12V
REGULAR battery type, no charge
rate (tester mode).
7. 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.
8. To disconnect the charger, unplug
its power cord before attempting to
disconnect the output clamps. Then,
standing away from the battery, re-
move the output clamp from the chas-
sis or engine block. Finally, remove
the output clamp from the battery
post.
9. Clean and store the charger in a dry
location.