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Introduction

Introduction

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Important:

Please be sure to read and save the entire manual before using your

mobile power pack. Any misoperation or misusing may damage the equipment
or create hazardous conditions for the user. Please keep this manual for future
reference.

The following conventions are used in this manual:

WARNING

Warnings identify conditions that could result in personal 
injury or loss of life.

CAUTION

Cautions identify conditions or practices that could result 
in damage to the unit or to other equipment.

NOTE:

These notes describe an important action item or an item that you 
must pay attention to.

Abbreviations and Acronyms:

A

Ampere

AC

Alternating Current

Ah

Amp-hours

DC

Direct Current

LED

light-emitting diode

mA

milli-Ampere

V

Volt

W

Watt

Important Safety Instructions

WARNING: Charge unit fully prior to use.

Keep unit clear of fire and water. 

WARNING: Shock hazard

Keep away from children. Do not insert foreign objects into the DC power
pack socket, the jump start cable port, or the ventilation hole, do not expose
this product to water, rain, snow, condensation, or spray. Do not open the
power pack expect to replace the internal battery. Have a qualified
technician perform any service work.

WARNING: Explosion hazard

Do not use this product where there are flammable fumes or gases, such as
in the bilge of a gasoline-powered boat, or near propane tanks. Do not use
this product in an enclosure containing automotive-type lead-acid batteries.
These batteries, unlike the sealed AGM battery in power pack, vent explosive
hydrogen gas which can be ignited by sparks from electrical connections.
When working on electrical equipment, always ensure someone is nearby to
help you in an emergency.

WARNING: Heated surface

Ensure at least 2” (5cm) air space is maintained on all sides of the power
pack. During operation, keep away from materials that may be affected by
high temperatures such as blankets, pillows and sleeping bags.

WARNING: Fire hazard

Never allow jump start cables’ 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. Always disconnect the jump start
cables from the unit after use and clip the plastic guard over the jump start
cable port.
Jump start cable clamps must be connected positive to positive (red clip to
battery “+”) and negative to negative (black clip to battery “-“or engine
ground). A reverse polarity connection (positive to negative) may cause
damage to the unit and/or create a sparking/explosion hazard.

Summary of Contents for CJS 50

Page 1: ...zardous conditions for the user Please keep this manual for future reference What s Included with Your CJS 50 1 Power pack with jump start cables 2 120V AC charging adapter 3 Owner s operating instructions CJS 50 2009 Cobra Electronics Corporation Version C Printed in China Part No 480 547 P Jump Starter PowerPack Operating Instructions Introduction A1 1 2 3 The Cobra line of quality products incl...

Page 2: ...rom the date of first consumer purchase This warranty may be enforced by the first consumer purchaser provided that the product is utilized within the U S A Cobra will without charge repair or replace at its option defective jump starter power pack products or component parts upon delivery to the Cobra Factory Service department accompanied by proof of the date of first consumer purchase such as a...

Page 3: ...r pack battery 10 Applications Troubleshooting 11 Specifications 12 Product service 13 Warranty Information 14 Features of This Product 12 Volt DC power outlet for DC accessories appliances LED super bright emergency light 5V USB port to power up or charge cellphones PDAs or consumer electronic devices 500 peak Amps of instant starting power to start vehicles Rechargeable internal battery LED disp...

Page 4: ... qualified technician perform any service work WARNING Explosion hazard Do not use this product where there are flammable fumes or gases such as in the bilge of a gasoline powered boat or near propane tanks Do not use this product in an enclosure containing automotive type lead acid batteries These batteries unlike the sealed AGM battery in power pack vent explosive hydrogen gas which can be ignit...

Page 5: ... not to drop a metal object on the battery or allow a metal tool to simultaneously touch the positive and negative cable ends or battery terminals It might spark or short circuit the battery or other electrical parts and cause an explosion 5 Remove personal metal items such as rings bracelets necklaces and watches when working with batteries Batteries produce a short circuit current high enough to...

Page 6: ... lights 12 2V U 12 4V Red and yellow LED light 12 4V U 12 6V Red yellow and one green LED light U 12 6V Red yellow and two green LED all light 9 Reverse polarity Red LED indicates jump start connection to battery indicator is incorrect 10 LED lights Four white LED lights for emergency use 11 12V DC socket Easy access output port to charge 12V accessories Note The unit contains 15A fuse for over cu...

Page 7: ...minals must be positive to positive red clamp to battery and negative to negative black clamp to battery or vehicle chassis NOTE Carefully follow these instructions for jump starting your vehicle as they may be different from the instructions supplied with other jump start products or cables To jump start a vehicle 1 Turn off the vehicle and all accessories 2 Place the unit on a flat and stable su...

Page 8: ...it assumes that there is 120V at the AC wall outlet If the voltage is less than 120V AC it may require more time to fully recharge the internal battery Once fully charged the charging current automatically reduces to a floating charge mode and the unit may be left permanently connected to the AC charger Problem Cause Solution The power pack can not jump start vehicle The battery in the power pack ...

Page 9: ...wer pack to the Cobra factory It will be necessary to furnish the following to have the product serviced and returned 1 For warranty repair include some form of proof of purchase such as a mechanical reproduction or carbon copy of a sales receipt If you send the original receipt it cannot be returned 2 Send the entire product 3 Enclose a description of what is happening with the jump starter power...

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