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8. TROUBLESHOOTING

PROBLEM

POSSIBLE CAUSE

SOLUTION

The unit won’t jump start 

my car.

Clamps are not making 

a good connection to the 

battery.

Connections are reversed.

The internal battery is not 

charged.

The vehicle’s battery is 

defective.

The unit is not turned on.

Check for poor connection to 

battery and frame. Make sure 

connection points are clean. 

Disconnect the unit and reverse 

the clamps.

Press the Battery Status button 

on the front of the unit. The LEDs 

will indicate the status of charge.

Have the battery checked. 

Turn the unit’s ON/OFF  

switch to the ON position.

The unit won’t power my 

12V device.

The 12V device is not 

turned on.

The internal battery is not 

charged.

The 12V device draws more 

than 20A, has a short circuit, 

or the internal fuse has blown.

Turn on the 12V device.

Check the battery charge status 

by pressing the Battery Status 

button.

Disconnect the 12V device. 

The internal 20A fuse needs 

replacement by a qualified  

service person.

The internal battery won’t 

hold a charge.

The battery is bad (will not 

accept a charge).

Have the battery checked.

The compressor shuts off.

The compressor is 

overheated.

Allow to cool for a few minutes, 

then try again.

9

. SPECIFICATIONS

Internal battery type ........................................ Sealed, maintenance-free, AGM, lead-acid
Nominal voltage ......................................................................................................12V DC
12V DC power output....................................................................................................20A

10

.

 

REPLACEMENT PARTS

Air compressor accessory kit (3 hose adapters) ....................................... 2299001425Z

11.

 

ACCESSORIES

Male-to-male accessory cable ........................................................................ 94500109

View other automotive tools made by Schumacher on our website.

Summary of Contents for SJ1331

Page 1: ...DC Power Source OWNERS MANUAL PLEASE SAVE THIS OWNERS MANUAL AND READ BEFORE EACH USE This manual will explain how to use the portable power safely and effectively Please read and follow these instructions and precautions carefully ...

Page 2: ...ar away from the battery being jumped as the cables will permit 1 8 Do not expose the jump starter to rain or snow 1 9 Never attempt to jump start a frozen battery 1 10 Never place the jump starter directly above battery being jumped 1 11 To prevent arcing never allow the clamps to touch together or to contact the same piece of metal 1 12 Use of an attachment not recommended or sold by Schumacher ...

Page 3: ...us indicators 5 Battery status button 6 USB port 7 12V DC power outlet 8 Battery clamps 9 Air compressor gauge 10 Air compressor ON OFF switch 11 Internal battery charger port 12 Air compressor hose wrap cleats 13 Air compressor hose 14 Air compressor adapters and storage bag 9 14 13 10 11 12 4 CHARGING THE INTERNAL BATTERY OF THE JUMP STARTER IMPORTANT CHARGE IMMEDIATELY AFTER PURCHASE AFTER EACH...

Page 4: ...hicle as in most vehicles connect the Instant Power s POSITIVE RED clamp to the POSITIVE POS P battery post Next connect the NEGATIVE BLACK clamp to the vehicle chassis or engine block away from the battery 4 For a positive ground vehicle connect the Instant Power s NEGATIVE BLACK clamp to the NEGATIVE NEG N battery post Next connect the POSITIVE RED clamp to the vehicle chassis or engine block aw...

Page 5: ...ports balls 30 seconds These times are approximate Use the air compressor gauge to ensure the proper pressure has been reached Do not overinflate 6 MAINTENANCE INSTRUCTIONS 6 1 After use and before performing maintenance unplug and disconnect the jump starter 6 2 Use a dry cloth to wipe all battery corrosion and other dirt or oil from the battery clips cords and the jump starter case 6 3 Ensure th...

Page 6: ... internal battery is not charged The 12V device draws more than 20A has a short circuit or the internal fuse has blown Turn on the 12V device Check the battery charge status by pressing the Battery Status button Disconnect the 12V device The internal 20A fuse needs replacement by a qualified service person The internal battery won t hold a charge The battery is bad will not accept a charge Have th...

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