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Introduction

Introduction

7

6

Controls and Indicators:

1. USB power port

Provides 5 volt output voltage for consumer 
electronics devices. 

2. USB power indicator

Illuminates when USB port is in use.

3. USB/LED power switch If the switch is flipped left, the USB port can 

provide power. Flipped right, the white LED lamps 
illuminate. Center position, the USB port and LED 
lamps are off. 

4. Charging indicator

2-color LED indicator. When the battery is being 
charged, this LED indicator lights red, when the 
battery is fully charged, the LED indicator lights 
green.

5. Charging jack

Charge the battery in the unit by inserting the 
connector from the AC charging adapter into this jack.

6. Battery level indicators:

Note:

It is recommended that you should check the battery voltage every 30

minutes during charging.

7.  Battery level button

When pressed, indicates the battery charge levels.

8.  Battery connection 

Green LED indicates connection to a battery  

indicator

is correct.

Battery Value

Display Mode

U<12.2V

Only red LED indicator 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 current protection.

Note:

It is recommended that you use the unit to power 12V accessories less 

than 8A.

12.  Jump start power 

Turn this switch after connecting to vehicle to 
switch jump start battery. 

13.  Red battery clamp

Positive connector for jump starts.

14.  Black battery clamp

Negative connector for jump starts.

Note:

Be sure that the jump start switch is in 

off

position prior to connecting

clamps to vehicle’s battery.  Attach clamps properly to battery (red to positive post,
and black to negative chassis ground) before turning jump start switch to 

on

.

15.  Portable handle

For convenient handling of unit.

16.  AC charging adapter: Input voltage: 120V AC

Output voltage: 13.5V DC
Input current: 0.3A

Note:

It is recommended that you charge the interior battery using the AC

charging adapter, which offers charge protection. 

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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