Jump n Carry JNC550A, Manual

Jump Starting Instructions

Safety Check List

Always Perform this Step Before Use to Ensure Safe Operation.

1.   Check to make sure that the clamps and cables are in good working order.

Signs 

that the clamps may be damaged include, but are not limited to the following:

    - Burn Marks on the Jaws

  - Damaged clamp handles

  - Damaged clamp springs

  -  Damaged cables where copper wiring may be exposed (insulation jacket 

 deteriorated, cut or missing)

2.   Check to make sure the case is not swollen (a sign of damaged batteries).

Verifying these simple check points before every use will keep your jump starter safe to 
use and increase its service life.

Note:

  For optimum performance, do not store your 

Jump-N-Carry

 below 50°F when 

using as a jump starter. 

NEVER

 charge or jump start a frozen battery.

1.  Use in a well ventilated area.

2.  Shield eyes. Always wear protective eyewear when working near batteries.

3.  Review this instruction manual and the instruction/safety manual provided by the 

manufacturer of the vehicle being jump started.

4.  Turn vehicle ignition off and ensure unit ON/OFF switch is in the OFF position 

before making cable connections.

5.  Clamp the positive (red +) clamp to the positive terminal on the vehicle 

battery (for negative ground system), or an alternate vehicle starting point as 
recommended by vehicle manufacturer.

6.  Clamp the negative (black –) clamp to the vehicle ground (non-moving metal part, 

such as the vehicle frame).  

Note:

 If warning buzzer beeps, do not advance to step 7. Determine source of 

error. Display will show one of two error codes:  Er1 – reverse polarity, Er2 – over-
voltage (connected to a battery above 16VDC). Resolve the error source before 
proceeding to the next step.

7.  Turn unit ON/OFF switch to ON position.
8.  Make sure the cables are not in the path of moving engine parts (belts, fans, 

etc.).

9.  Stay clear of batteries while jump starting.

10. Start the vehicle (turn on the vehicle ignition).

Note: 

if the vehicle doesn’t start within 6 seconds, let the 

Jump-N-Carry

 cool 

for 3 minutes before attempting to start the vehicle again or you may damage the 

Jump-N-Carry

.

11. When the vehicle is started, being careful of moving parts, disconnect the 

negative (-) battery clamp from the vehicle frame and return it to its holster.   

Now turn the ON/OFF switch to the OFF position.

12. Disconnect the positive (+) clamp and return it to its holster.