Models: CPP 7500, CPP 7510, CPP 8000

1. Is the JumPack fully charged? Press the button on the JumPack to test the battery condition. All four LEDs should illuminate.

2. Are both of the jumper clamps connected directly to the battery? If not:

• Unplug the jumper cables from the JumPack.
• Attach both clamps directly to the battery posts.
• Plug the jumper cables back into the JumPack.
• Try starting the engine.

3. There might be a bad connection with the battery cables. Try the following:

• Unplug the jumper cables from the JumPack.
• Wiggle the battery clamps to help make good contact.
• Plug the jumper cables back into the JumPack.
• Try starting the engine.

4. After connecting the JumPack to the battery, wait 2 minutes to allow some power to transfer from the JumPack into the car battery. Then try starting the car.

5. If the battery in your car is near 100 percent dead, or if the battery is defective, then it can suck too much power from the JumPack so that there is not enough power to start the engine. Do the dash lights come on? Does the radio work? If everything is dead then you may need something bigger than a portable jump starter.

6. If the engine cranks but refuses to start, then there might be a mechanical problem with your car that requires servicing.

7. There is a fuse in the jumper cable for the JumPack. If the fuse is blown then the JumPack will not work. The fuse can blow if the cables are accidentally shorted together, if you crank the engine for more than 3 seconds, or if your car draws too much power from the JumPack. The fuse is located in the little black box on the black cable.   Some models have an inspection window to allow checking the fuse. If there is no inspection window then it is possible to pry open the box and check the condition of the fuse. If the fuse is blown then the battery cable assembly must be replaced (CPP75-CABLES). Do not open the box on the red battery cable – there is no fuse inside that box.