400Amp Surge Protected Jumper Leads and How to Jump Start a Vehicle

Product Code: Q400AS
Product Code: Q400AS

The qest@ 400AMP 3M Surge Protected Jumper Leads are designed for use on 4 cylinder vehicles.

The Anti Surge protection provides extra safety for your vehicle while being jump started from another vehicle. This eliminates the possibility of an electronic surge damaging the vehicles on board computer.

The 3M length allows a good distance between both vehicles when attempting a jump start.

The durable plastic carry case allows for easy storage while not in use.


  • Product Code: Q400AS
  • Lead Length: 3M
  • Amperage: 400AMP
  • Fully Insulated Battery Cable
  • In-Built Surge Protection To Protect Vehicle Electronics
  • Suitable For Use On 4 Cylinder Vehicles


 Step-by-Step Instructions to Jump Starting Your Vehicle using the qest@ 400AMP 3M Surge Protected Jumper Leads:

1. Make sure the battery is the problem : 

Check the headlights of the disabled vehicle. Are they dim or bright? (Note that in some cars you will need to turn the ignition on to test the headlights). If they are dim, it’s likely your battery is the culprit. If your headlights are bright, you do not have a dead battery and a jump start will not help.



2.  Put the key in the ignition and see whether your dashboard lights up as usual.

Test the stereo. In most cases, even with a low battery you should see some dashboard lights and get some sound out of the stereo. If you do not get a flicker out of your dashboard, you may have a problem with your ignition switch.



3. Try to start the car. Does it turn over very slowly, or does it crank quickly? If it cranks quickly, you do not have a dead battery and a jump start will not help. If it cranks slowly, or not at all, you probably have a dead battery.


4. Open each car’s hood and locate the battery. On most cars, it will be near the front of the car on the right or left side, but on some cars the battery may be located near the firewall between the engine and passenger compartment. In some cars the battery is located in the boot. If unsure, see the manual for location of the battery.


5. Identify the positive and negative terminals. 

The positive terminal will be marked with a plus sign (+) and will usually have a red cable attached to it.

Vehicles Postive Terminal
Vehicles Postive Terminal

The negative terminal will be marked with a minus sign (-) and will usually have a black cable attached to it.

Vehicles Negative Terminal
Vehicles Negative Terminal


6. Ensure vehicles are close enough for the 3M Jumper Leads to reach either battery.

It is recommended to view under the bonnet of each vehicle to locate the battery position before bringing the 2 vehicles close together.



7. Before connecting the leads ensure the ignition is switched off.

Connect the RED ( + ) to the vehicles battery supplying the charge to the vehicle with the flat battery.


Take the other RED ( + ) end and connect to the battery of the flat vehicle.



8. Connect the BLACK ( – ) to the vehicles battery supplying the charge.



9. Connect the BLACK ( – ) to the flat vehicles engine block or vehicle body ensuring a good connection.


Always ensure that the Jumper Leads are not in the way of any moving parts such as fan belts.



10. Start the vehicle supplying the Jump Start and slightly rev the engine:



While this is running start the vehicle with the flat battery:


11. Once the vehicle with the flat battery is started carefully remove the Jumper Leads ensuring that they do not make contact with any moving parts.


12. Should the vehicle with the flat battery not start after several attempts it may be a faulty battery or other problems that will need to be assessed by a qualified mechanic. Please consult the vehicles owner’s manual for further instructions.



  • Batteries produce explosive gases.
  • Ensure both batteries are of the same voltage.
  • If the battery appears to have no liquid or if the liquid is frozen, do not jump start the battery.
  • Do not smoke around batteries or use naked flames of any kind.
  • Always protect your eyes by wearing safety glasses.
  • Ensure both vehicles are in the park position and hand brake is on.
  • Ensure that both vehicles are not touching while trying to jump start.


When jump starting a vehicle with a discharged battery, always apply the BLACK ( – ) clamp to a solid stationary metal component on the engine of the vehicle. This provides an earthed connection.

If the vehicle’s battery is located in another area other than the engine compartment, it may not be practical to attempt to connect jumper leads directly to the battery. Many vehicles of this type have dedicated jump starting connections in the engine compartment. These will be shown in the vehicle’s handbook.






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