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How to Jump Start a Car

With the ULTRA2500A, jump starting a car is easier than ever. Even still, let’s take it step by step to ensure you’re able to get back on the road in no time. Make sure to fully read the manual for full instructions.

First, you’re going to want to make sure that your ULTRA2500A is fully charged. Once you’re good to go, go ahead and plug in the jumper cables into the ULTRA2500A’s jumper cable jack. Make sure you don’t force the plug into the jack. Connect the red (positive) clamp to the positive (+) terminal on the vehicle’s battery, and the black (negative) clamp to the negative (-) terminal on the vehicle’s battery.

Once you verify that the connections are secure, press the Light or Power Button to start up the ULTRA2500A. You’ll know that it’s on by the green light which will flash on screen. Now you can start the vehicle. Once the vehicle starts, the ULTRA2500A will automatically disable the power output.

More often than not, the vehicle will start immediately after the jump starter has been connected. Some vehicles may need to be connected for 30 to 120 seconds. (JackPak will charge the vehicle battery at this time) If you find that your vehicle does not start immediately, give it about 20 to 30- seconds between attempts.

DO NOT attempt more than five starts within 15 minutes.

Once you have completed the start-up, press the power button to shut down the ULTRA2500A. It will also automatically shut down after 60 seconds of non-operation. Then, remove the clamps from the vehicle battery, and you’re good to hit the road!

Now, let’s go over how to Force Start the Jump-Start Function.

First, you’ll plug the jumper cables into the ULTRA2500A’s jump cable jack, much like before. Once the ULTRA2500A is on, press and hold the “BAR / PSI” button for five seconds to enter the forced start mode. Then, the green light on the screen should be lit, indicating the ignition clips are energized. Securely connect the red (+) clamp to the positive (+) terminal on the vehicle battery, and the black (-) clamp to the negative (-) terminal on the vehicle battery. If you see a spark when connecting the clamp to the terminal, don’t worry! This is normal.

The overall voltage of the jump starter connected to the vehicle battery should be displayed on the screen. You may now proceed with jump starting the vehicle. once you’re done, briefly press the “Power” or “BAR / PSI” button to exit.