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• Always have protective eyewear when using this product: contact with battery acid may cause
blindness and/or severe burns. Be aware of first aid procedures in case of accidental contact with
b a t t e ry acid.
• Have plenty of fresh water and soap nearby in case battery acid contacts skin.
• If battery acid contacts skin or clothing, wash immediately with soap and water for at least 10
minutes and get medical attention immediately.
• Never smoke or allow a spark or flame in vicinity of vehicle battery, engine or power station
• Remove personal metal items such as rings, bracelets, necklaces and watches when working with a
lead acid battery. A lead acid battery can produce a short circuit current high enough to weld a ring,
or similar metal object, to skin, causing a severe burn.
• Do not wear vinyl clothing when jump-starting a vehicle when jump-starting a vehicle, friction can
cause dangerous static-electrical sparks.
• Jump-start procedures should only be performed in a safe, dry, well-ventilated area.
• Always store battery clamps when not in use. Never touch battery clamps together. This can cause
dangerous sparks, power arcing and/or explosion.
• When using this unit close to the vehicle’s battery and engine, stand the unit on a flat, stable surf a c e ,
and be sure to keep all clamps, cords, clothing and body parts away from moving vehicle parts.
• Never allow red and black clamps to touch each other or another common metal conductor — this
could cause damage to the unit and/or create a sparking/explosion hazard.
a) For negative-grounded systems, connect the POSITIVE (RED) clamp to the POSITIVE ungrounded
b a t t e ry post and the NEGATIVE (BLACK) 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.
b) For positive-grounded systems, connect the NEGATIVE (BLACK) clamp to the NEGAT I V E
ungrounded battery post and 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.
• If the connections to the battery ’s P O S I T I V E and N E G AT I V E terminals are incorrect, the Reverse
Polarity Indicator will light (red) and the unit will sound a beep. Disconnect clamps and reconnect to
b a t t e ry with correct polarity.
• Always disconnect the negative (Black) jumper cable first, followed by the positive (Red) jumper
cable, except for positive grounded systems.
• Do not expose battery to fire or intense heat since it may explode. Before disposing of the battery,
protect exposed terminals with heavy-duty electrical tape to prevent shorting (shorting can result in
i n j u ry or fire).
• Place this unit as far away from the battery as DC cables permit.
• Never allow battery acid to come in contact with this unit.
• Do not operate this unit in a closed area or restrict ventilation in any way.
•
FIRST AID
– SKIN: If battery acid comes in contact with skin, rinse immediately with water, then
wash thoroughly with soap and water. If redness, pain, or irritation occurs, seek immediate medical
a t t e n t i o n .
EYES: If battery acid comes in contact with eyes, flush eyes immediately, for a minimum of 15
minutes and seek immediate medical attention.
•
I M P O RTA N T:
This unit is delivered in a partially charged state. Fully charge unit with a household
extension cord (not supplied) for a full 24 hours before using for the first time. You cannot
o v e rcharge the unit using the AC charging method.
• All O N / O F F switches should be in the OFF position when the unit is charging or not in use. Make sure
all switches are in the OFF position before connection to a power source or load.
• Never insert anything other than the supplied recommended appliance power/recharging cords into
the 12 volt DC power outlet on this unit. Do not use any accessory that is not recommended or
provided by the manufacturer.
• Do not use this unit to operate appliances that need more than 5 amps to operate from the 12 volt
DC accessory outlet.
JS450CP ManualEN 062807.qxp 9/26/08 12:42 PM Page 3
