Simply 400AMP Jump Leads/Booster Cables

Code: SM400B
  • £14.99
  • (Delivery from £3.50)
Item in Stock | Usually dispatched within 24 hours
Item in Stock | Usually dispatched within 24 hours
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FREE UK MAINLAND DELIVERY on items over £75.00 (zonal exclusions apply)
HASSLE FREE RETURNS on all items

These jump leads are supplied in a storage bag with clear instructions.

  • 400amp (up to 2500CC) Jump Lead
  • 2.5M cable
  • Supplied in a box with clear instructions on the reverse
  • Comes with a storage bag
  • 400amp (up to 2500CC) Jump Lead
  • 2.5M cable
  • Supplied in a box with clear instructions on the reverse
  • Comes with a storage bag
  • Fitting Instructions:
  • Establish that both vehicles have the same polarity, i.e. both vehicles have iether positive earth or both have negative earth. (All vehicles manufactured after 1980 are negative earth).
  • Switch off all electrical equipment on both vehicles, including ingnition. Select neutral gear (or park if automatic transmission) and apply the handbrake.
  • Ensure that vehicles are not touching.
  • Connection Instructions For Negative Earth Vehicles
  • Connecting the Booster Cable
  • Connect the RED cable to the positive (+) terminal of the booster battery.
  • Connect the other end of the RED cable to the positive (+) terminal of the flat battery.
  • Connect the BLACK cable to the negative (-) terminal of the booster battery.
  • Mark final connection of the BLACK cable to a substantial, unpainted point on the chassis or engine of the vehicle with the flat battery.
  • Ensure that this point is away from the battery, carburettor, fuel lines or brake pipes to minimise any fire risk caused by sparking. 
  • Starting
  • Ensure that the leads are well clear of any moving parts.
  • Start the engine of the “good” (booster) vehicle and allow to run for about one minute.
  • Attempt to start the “dead” (flat) vehicle and once started allow to run for at least one minute (DO NOT allow the cables to become hot. If they do, switch off the engine and allow them to cool). 
  • Disconnecting the Cables
  • Stop the engine of the “good” (booster) vehicle. 
  • Disconnect the leads by reversing the order of the connection sequence.
  • Take great care to keep clear of moving parts when disconnecting from the running vehicle.
  • Ensure that hands and clothing, (particularly belts, ties and scarves) are clear from fan blades and other moving or hot engine parts.
  • Ensure that the vehicles are not touching.
  • If the vehicle is reluctant to start, then seek expert advice on the cause.
  • After use, store the cables in the box provided to prevent cable damage.
  • Warning
  • Explosive gases may be present. Take great care not to create sparks. Extinguish all cigarettes and any naked flames. 
  • Avoid clamps coming into contact with each other or the vehicle body.
  • Ensure that all jewellery is removed from the hands, wrist and neck before working on the battery.
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Delivery will be calculated at checkout based on the items purchased and your delivery postcode

Shipping cost is determined by the value of product and suitability for shipping agent.

Typical (but not guaranteed) shipping costs are:

Royal Mail only items: £1.50 to £6.50 (Royal Mail tracked items can be left in a safe place if nominated)

Parcelforce 48 Hour: £6.95 Mainland UK (Parcelforce is a signed for service & can not be left safe)

Parcelforce 24 Hour: £7.95 Mainland UK (Parcelforce is a signed for service & can not be left safe)

Zonal charges apply for Northern Ireland (maximum £24.95), Scottish Highlands & Islands (maximum £23.99), Isle of Wight (maximum £12.95), Isle of Man (maximum £23.95) & Scilly Isles (maximum £26.95).

Collection from store is Free of charge from WA14 5DH

Free delivery to Mainland UK for orders over £75

Please contact us for our Payment & Security policy.

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