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• 8 •
Maintaining the Battery
The SC2DSR maintains 12V batteries,
keeping them at full charge.
NOTE: The maintain mode technology
allows you to safely charge and maintain
a healthy battery for extended periods
of time. However, problems with the
battery, improper connections or other
unanticipated conditions could cause
excessive current draws. Occasionally
monitoring your battery and the charging
process is recommended.
8. OPERATING INSTRUCTIONS
8.1 Jump Starting a Vehicle Engine
IMPORTANT: Using the booster without a
battery installed in the vehicle will damage
the vehicle’s electrical system.
IMPORTANT: Do not use the booster while
charging its internal battery.
WARNING! A SPARK NEAR THE
BATTERY MAY CAUSE A BATTERY
EXPLOSION. TO REDUCE THE RISK
OF A SPARK NEAR THE BATTERY:
1. Turn the vehicle’s ignition OFF before
making cable connections.
2. Position the DC cables to reduce the
risk of damage by the hood, door and
moving or hot engine parts.
NOTE: If it is necessary to close the
hood during the jump starting process,
ensure that the hood does not touch
the battery clamps or cut the insulation
of the cables.
3. Stay clear of fan blades, belts, pulleys
and other parts that can cause injury.
4. Check the polarity of the battery posts.
The POSITIVE (POS, P, +) battery
post usually has a larger diameter
than the NEGATIVE (NEG, N, -) post.
5. Determine which post of the battery is
grounded (connected) to the chassis.
If the negative post is grounded to the
chassis (as in most vehicles), see step
6. If the positive post is grounded to
the chassis, see step 7.
6. For a negative-grounded vehicle,
connect the POSITIVE (RED) clamp
from the booster to the POSITIVE
(POS, P, +) ungrounded post of the
battery. Connect the NEGATIVE
(BLUE) clamp to the vehicle chassis
or engine block away from the battery.
Do not connect the clamp to the
carburetor, fuel lines or sheet-metal
body parts. Connect to a heavy gauge
metal part of the frame or engine
block.
7. For a positive-grounded vehicle,
connect the NEGATIVE (BLUE) clamp
from the booster to the NEGATIVE
(NEG, N, -) ungrounded post of the
battery. Connect the POSITIVE (RED)
clamp to the vehicle chassis or engine
block away from the battery. Do not
connect the clamp to the carburetor,
fuel lines or sheet-metal body parts.
Connect to a heavy gauge metal part
of the frame or engine block.
8. Crank the engine. If the engine does
not start within 8-10 seconds, stop
cranking and wait at least 3 minutes
before attempting to start the vehicle
again.
• To allow the voltage of the booster
battery to build up again.
• To allow the renewal of gasses inside
the battery.
• To allow the internal components of
the battery to cool down.
If you do not wait and/or the starting
attempt is too long, you risk losing power,
you reduce your starting possibilities by
the second attempt and you risk melting
the fuse inside.
IMPORTANT:
• Never connect the booster to a battery
or starter which is in short-circuit. The
internal fuse will blow.
• Make sure clamps are connected
correctly.
• Never disconnect the booster while
engine running when there is no
battery in the vehicle or when the
vehicle’s battery is at 0 volt. This may
damage the alternator.
9. After the engine starts, disconnect the
blue clamp (-) and then the red clamp,
(+) in that order.
10. Immediately recharge the booster.
8.2 Internal fuse replacement
The booster is equipped with an internal
fuse. It can melt following a short circuit or
a too-long start attempt.
To monitor the fuse:
• Press on the voltmeter. If it does not
deviate, the fuse has melted.
• Measure the voltage at the clamps:
0 volt = melted fuse.
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