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INTRODUCTION
Congratulations on purchasing your new Stanley FatMax™ 450 Amp Jump Starter with Compressor. Read this Instruction Manual
and follow the instructions carefully before using this unit.
CHARGING/RECHARGING
Lead-acid batteries require routine maintenance to ensure a full charge and long battery life. All batteries lose energy from self-
discharge over time and more rapidly at higher temperatures. Therefore, batteries need periodic charging to replace energy lost
through self-discharge. When the unit is not in frequent use, manufacturer recommends the battery be recharged at least every
30 days.
Notes:
This unit is delivered in a partially charged state – you must fully charge it upon purchase and before using it for the first time. Initial AC charge should be
for 40 hours.
Recharging battery after each use will prolong battery life; frequent heavy discharges between recharges and/or overcharging will reduce battery life. The
battery can be recharged using the Built-In 120 Volt AC Charger.
Make sure all other unit functions are turned off during recharging, as this can slow the recharging process.
IMPORTANT:
If you know the unit is discharged, but the battery status LEDs illuminate as if the unit is fully charged when
connected to a charging power source, this may be due to the internal battery having high impedance. The manufacturer suggests
leaving the unit charging for a period of 24-48 hours using the AC charging method before use.
CAUTION: RISK OF PROPERTY DAMAGE:
Failure to keep the battery charged will cause permanent damage and result in poor
jump starting performance.
Charging/Recharging Using the 120 Volt AC Charger and a Standard Household Extension Cord (not included)
1. Lift the AC adapter cover located on the back of the unit and connect an extension cord to the unit. Plug the other end of the
cord into a standard 120-volt AC wall outlet.
2. Charge until the green Battery Status LED Indicator lights solid or flashes.
3. Disconnect the extension cord.
Note:
The unit cannot be overcharged using this method.
JUMP-STARTER
This Jump-Starter is equipped with an On/Off Power Switch. Once the connections are properly made, turn the switch on to jump-
start the vehicle.
1. Turn off vehicle ignition and all accessories (radio, A/C, lights, connected cell phone chargers, etc.). Place vehicle in “park” and
set the emergency brake.
2. Make sure the Jump-Starter Power Switch is turned to off.
3. Remove jumper clamps from clamp tabs. Connect the red clamp first, then the black clamp.
4. Procedure for jump-starting a NEGATIVE GROUNDED SYSTEM (negative battery terminal is connected to chassis)
(MOST COMMON)
4a. Connect positive (+) red clamp to vehicle battery’s positive terminal.
4b. Connect negative (–) black clamp to chassis or a solid, non-moving, metal vehicle component or body part. Never clamp directly to
negative battery terminal or moving part. Refer to the automobile owner’s manual.
5. Procedure for jump-starting POSITIVE GROUND SYSTEMS
Note:
In the rare event that the vehicle to be started has a Positive Grounded System (positive battery terminal is connected to chassis), replace steps 4a
and 4b above with steps 5a and 5b, then proceed to step 6.
5a. Connect negative (–) black clamp to vehicle battery’s negative terminal.
5b. Connect positive (+) red clamp to vehicle chassis or a solid, non-moving, metal vehicle component or body part. Never clamp directly
to Positive battery terminal or moving part. Refer to the automobile owner’s manual.
6. When clamps are connected properly, turn the Jump-Starter Power Switch to ON.
7. Turn ON the ignition and crank the engine in 5-6 second bursts until engine starts.
8. Turn the Jump-Starter Power Switch back to the OFF position.
9. Disconnect the negative (–) engine or chassis clamp first, then disconnect the positive (+) battery clamp.
WARNING: TO REDUCE THE RISK OF INJURY OR PROPERTY DAMAGE:
•
FOLLOW ALL SAFETY INSTRUCTIONS FOUND IN THE “SPECIFIC SAFETY INSTRUCTIONS FOR JUMP STARTERS”
SECTION OF THIS INSTRUCTION MANUAL.
• This power system is to be used ONLY on vehicles with 12 volt DC battery systems.
• Never touch red and black clamps together — this can cause dangerous sparks, power arcing, and/or explosion.
• After use, turn the Jump-Starter Power Switch off.
CAUTION: TO REDUCE THE RISK OF PROPERTY DAMAGE:
• Vehicles that have on-board computerized systems may be damaged if vehicle battery is jump-started. Before jump-starting this
type of vehicle, read the vehicle manual to confirm that external-starting assistance is advised.
• To reduce the risk of battery explosion, follow these instructions and those published by the battery manufacturer and
manufacturer of any equipment you intend to use in the vicinity of the battery. Review cautionary markings on these products
and on the engine.
CAUTION: TO REDUCE THE RISK OF INJURY OR PROPERTY DAMAGE:
• NEVER ATTEMPT TO JUMP-START OR CHARGE A FROZEN BATTERY.
• Vehicles that have on-board computerized systems may be damaged if vehicle battery is jump-started. Before jump-starting, read
the vehicle’s owner’s manual to confirm that external-starting assistance is suitable.
• When working with lead acid batteries, always make sure immediate assistance is available in case of accident or emergency.
• 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 battery acid.
• Have plenty of fresh water and soap nearby in case battery acid contacts skin.
• Never smoke or allow a spark or flame in vicinity of vehicle battery, engine or power station
• Stay clear of fan blades, belts, pulleys, and other parts that can cause injury to persons.
• 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 surface, 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 battery 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 gage metal part of the frame or engine block.
b) For positive-grounded systems, connect the negative (black) clamp to the negative 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 gage metal part of the frame or engine block.
• If the connections to the battery’s positive and negative terminals are incorrect, the reverse polarity indicator will light and the
unit will sound a continuous alarm until the clamps are disconnected. Disconnect clamps and reconnect to battery 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 injury or fire).
• Place this unit as far away from the battery as 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.
• This system is designed to be used only on vehicles with a 12 volt DC battery system. Do not connect to a 6 volt or 24 volt battery
system.
• This system is not designed to be used as a replacement for a vehicular battery. Do not attempt to operate a vehicle that does not
have a battery installed.
• Excessive engine cranking can damage a vehicle’s starter motor. If the engine fails to start after the recommended number of
attempts, discontinue jump-start procedures and look for other problems that may need to be corrected.
• Do not use this jump starter on a watercraft. It is not qualified for marine applications.
• Although this unit contains a non-spillable battery, it is recommended that unit be kept upright during storage, use and
recharging. To avoid possible damage that may shorten the unit’s working life, protect it from direct sunlight, direct heat and/or
moisture.
FIRST AID
•
Skin:
If battery acid contacts skin or clothing, wash immediately with soap and water for at least 10 minutes. If redness, pain, or
irritation occurs, seek immediate medical attention.
•
Eyes:
If battery acid comes in contact with eyes, flush eyes immediately, for a minimum of 15 minutes and seek immediate
medical attention.
SAVE THESE INSTRUCTIONS
JS900CS_ManualENSP_022514.indd 6-7
2/25/2014 10:46:57 AM
