DieHard 28.71520 Operator'S Manual Download Page 7

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To calculate the starting load: Starting Load = 2 x WATTS. In general, the start up 

load of the device or power tool determines whether your inverter has the capability 

to power it.
To calculate the continuous load: Continuous Load = AMPS x 120 (AC Voltage).

Always run a test to establish whether the inverter will operate a 

particular piece of equipment or device. In the event of a power overload, the inverter 

is designed to automatically shut down. This safety feature prevents damaging the 

inverter while testing devices and equipment within the wattage range of the inverter.

This inverter is designed to power 100 watt devices or less when 

used with the vehicle 12 volt accessory port. To use the full output you must 

purchase a 12 volt accessory outlet to battery clips adapter and connect the inverter 

directly to the battery.

NOTE:

 The 100 watt limit is to accommodate the fuse ratings for all vehicles. Some 

vehicles may allow the full output. If the vehicle’s fuse blows when you switch on 

the device you are trying to use, you have to either use a smaller device or you 

must purchase the 12 volt accessory outlet to battery clips adapter and connect the 

inverter directly to the battery.

This inverter uses a nonsinusoidal waveform. Therefore we do not 

recommend you use it to power the following devices:

Switch Mode Power Supplies;

1. 

Linear Power Supplies;

2. 

Class 2 Transformers;

3. 

Line Filter Capacitors;

4. 

Shaded Pole Motors;

5. 

Fan Motors;

6. 

Microwave Ovens;

7. 

Fluorescent and high Intensity Lamps (with a Ballast); and

8. 

Transformerless Battery Chargers.

9. 

doing so, may cause the device to run warmer or overheat.

Summary of Contents for 28.71520

Page 1: ...NUAL 120 Watt Power Inverter Model No 28 71520 Read and follow all Safety Rules and Operating Instructions before Every Use of this Product Save these instructions Sears Brands Management Corporation Hoffman Estates IL 60179 U S A ...

Page 2: ......

Page 3: ...and maintained according to all supplied instructions if this DieHard product fails due to a defect in material or workmanship within 1 year from the date of purchase return it to any DieHard outlet in the United States for free replacement This warranty gives you specific legal rights and you may also have other rights which vary from state to state Sears Brands Management Corporation Hoffman Est...

Page 4: ... serious injury to the operator or bystanders Indicates a potentially hazardous situation which if not avoided could result in death or serious injury to the operator or bystanders Indicates a potentially hazardous situation which if not avoided could result in moderate or minor injury to the operator or bystanders Indicates a potentially hazardous situation which if not avoided could result in da...

Page 5: ...n conduct electricity which may lead to serious injury or death Do not place the inverter on or near heating vents radiators or other sources 1 8 of heat or flammable materials Do not place the inverter in direct sunlight The ideal air temperature for 1 9 operation is between 50 and 80 F Only connect the power inverter to a 12 volt accessory outlet Do not attempt 1 10 to connect the inverter to an...

Page 6: ...provide as this may cause damage to the inverter and product When you turn on a device or a tool that runs on a motor the device basically goes through two stages Start Up Requiring an initial surge of power commonly known as the 1 starting or peak load Continuous Operation Power consumption drops commonly known as 2 the continuous load The wattage WATTS or amperes AMPS can normally be found stamp...

Page 7: ...put you must purchase a 12 volt accessory outlet to battery clips adapter and connect the inverter directly to the battery NOTE The 100 watt limit is to accommodate the fuse ratings for all vehicles Some vehicles may allow the full output If the vehicle s fuse blows when you switch on the device you are trying to use you have to either use a smaller device or you must purchase the 12 volt accessor...

Page 8: ...ed is turned OFF Plug the device into the Travel Inverter AC outlet or USB port Turn the device on If the device doesn t work and the LED blinks refer to section 4 To disconnect reverse the above procedure NOTE You may hear a buzzing sound being emitted from inexpensive sound systems when operated with the inverter This is due to ineffective filters in the sound system s power supply Unfortunately...

Page 9: ...the continuous rated output RESET To reset after shutdown occurs remove the 12 volt plug from the accessory outlet Check the source of the problem and correct Reinsert the 12 volt plug into the accessory outlet POWER SOURCE 6 Your average automobile or marine battery at full charge will provide an ample power supply to the inverter for approximately 3 hours when the engine is off The actual length...

Page 10: ...of the plug on 3 the inverter Do not tighten the fuse cap too tight finger tight is sufficient 4 Do not install a fuse higher than 15 amp as this may damage the inverter Make sure to correct the cause of the blown fuse before using the inverter again Troubleshooting 8 PROBLEM REASON SOLUTION LED does not light or inverter does not function Poor contact at terminals Fuse Blown Inverter shutdown Inv...

Page 11: ...5 USA 110V AC 3 Prong USB Port One 5V 0 5A Dimensions 3 75 H x 2 75 W x 875 D Product Weight Approximately 4 lbs Fuse 15 Amp 250V BEFORE RETURNING FOR REPAIRS 10 When an UNKNOWN OPERATING PROBLEM arises please read the complete manual and call the customer service number for information that will usually eliminate the need for return If the above solutions do not eliminate the problem or for infor...

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