NOCO 10' Extension Cable GC004
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NOCO 10' Extension Cable GC004

Sale price £21.95

Use as a 10-foot extension for any X-Connect accessory from the NOCO Genius range.

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Prices Inc. VAT. Free next day delivery if ordered before 5pm (UK mainland). Details.
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About Us

McMartins: Powering Your Journey, Inside and Out

As a family-run business, we leverage a legacy of technical expertise that stretches back to 1972 to supply you with the best parts and accessories.

Our team have supplied garages and retailers across the UK - and now we’re bringing the same quality of products and expertise directly to motorists.

Family‑run, UK‑based specialists. Trusted by consumer and trade. Delivered to your door.

McMartins is a forward-thinking automotive parts and accessories retailer built on a foundation of technical expertise, quality products, and unwavering commitment to the customer. While our name is synonymous with battery excellence - the critical power source for every vehicle - we have grown to become a comprehensive partner for all your car care, maintenance, and enhancement needs.
We serve the everyday driver, the dedicated DIY mechanic, and professional repair shops alike, ensuring every vehicle gets the power and parts it needs to perform reliably.

 

Our Core Pillars: The McMartins Difference

Our business model is built on three essential pillars that guide every decision, from product selection to customer service:

1. Battery Mastery: The Heart of Our Business

  • Deep Expertise: Our initial focus and enduring strength is in power solutions. We stock a vast array of batteries for everything from standard combustion engines and high-demand modern vehicles to specialized batteries for motorcycles, boats, and electric vehicle (EV) auxiliary systems.

  • The Right Fit Guarantee: We utilize advanced fitment technology to ensure every customer is matched with the exact CCA, Group Size, and technology (Lead-Acid, AGM, EFB, Lithium) required by their specific vehicle.

  • Sustainability Focus: We are committed to responsible battery life cycle management, offering robust battery testing and free, ethical recycling services for old units.

 

2. Curated Quality Parts: Reliability First

  • Essential Maintenance: We supply the parts you need to keep your car safe and running smoothly, including:

    • Batteries: Traditional Led-Acid, Lithium and more.

    • Battery Chargers

    • Jump Starters

  • Vetted Suppliers: Unlike general retailers, we partner only with trusted, industry-certified manufacturers to guarantee the quality and durability of every component we sell.

 

3. Smart Accessories & Tools: Empowering the Driver

  • Modern Automotive Life: We stock a range of accessories that enhance both the driving experience and the garage workflow.

  • Product Categories Include: Battery chargers and jump starters, portable power packs, high-performance lighting, and premium diagnostic tools for the DIY market.

 

Our Customer Commitment: Service, Simplified

At McMartins, we understand that car maintenance can be confusing and intimidating. We strive to make the process as straightforward and stress-free as possible.

Commitment What It Means for You
Expert Advice Our staff is trained not just in sales, but in automotive diagnostics. We provide personalized, non-jargon advice to solve your problem quickly and correctly the first time.
Effortless Fitment Our systems confirm part compatibility before you buy, eliminating guesswork and costly returns.
True Value Pricing We offer competitive pricing on premium brands, ensuring you get the best combination of quality and affordability.

 


Looking Ahead: The Future of McMartins

The automotive landscape is constantly evolving, with new technologies like hybrid and electric vehicles becoming mainstream. McMartins is committed to staying ahead of this curve:

  • EV Ready: We are continually expanding our offerings to include auxiliary batteries for electric and hybrid vehicles, alongside advanced charging and monitoring accessories.

  • Digital Integration: We are investing in our online platform to provide hyper-accurate digital fitment tools, detailed instructional content, and seamless service.

  • Community Focus: We aim to be a resource for local mechanics and enthusiasts through workshops, trade programs, and local sponsorship.

 

McMartins is more than just a parts store - we are your partners in vehicle reliability and performance.

DELIVERY

Delivery Times

Monday-Friday: Next day delivery (same day dispatch) available on orders before 5:00pm (unless stated otherwise on checkout or product page). Automatically applies to most standard orders.
Pallets (heavy weight and multiple or bulk quantities), Bank holidays, seasonal holidays, and other exclusions apply. UK Mainland only. Some postcodes in remote or difficult to access areas may add additional transit/delivery times.

  • Next day delivery (if ordered before 5:00pm, unless stated otherwise).
  • Standard delivery: Usually 2–5 working days.
  • Pallet delivery: Usually 5-7 working days.

We’ll email you tracking details as soon as your order is on its way.

Delivery Costs
Free delivery on all standard orders. Pallet delivery calculated on checkout.

Missed Deliveries
If you miss your delivery, our courier will leave instructions for re-delivery or collection. Tracking information will also include details for re-scheduling or options for delivery.

Damaged in Transit
If your parcel arrives damaged, please contact us within 48 hours of receipt with photos so we can put it right quickly.

Click here to view our Delivery (Shipping) Policy

RETURNS

You have 60 days from receiving your order to let us know you’d like to return it.
Once you’ve let us know that you’d like to return your order (within the 60-day notice period), you’ll have another 15 days to send it back to us.
Unless your item is faulty or we’ve sent the wrong one, you’ll just need to cover the return postage.

Refunds

Refunds are made to your original payment method - usually within 5–10 working days. This varies depending on your chosen payment method (credit cards typically take longer to show the refund).

Click here to view our Returns, Refunds & Warranty Policy
NOCO 10' Extension Cable GC004
10' Extension Cable GC004
Sale price£21.95
SKU: 4204040 Barcode: 046221100570
Brand: NOCO

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    NOCO 10' Extension Cable GC004

    10' Extension Cable GC004

    £21.95
    Description

    X-Connect 10 Foot Extension Cable

    X-Connect 10-Foot extension cable allows you to extend the reach of your battery charger and accessories, making it easier to reach awkward locations.

    • Extend the reach of your battery charger and accessories.
    • Add an additional 10 feet of length to any connection.
    • More ways to charge with plug-n-play accessory changes.
    • Rugged, watertight connector for extreme environments.

    Protection. Snap Fit Caps.
    The X-Connect caps snap in place and protect the plugs with a watertight, press-fit seal.

    Made For Genius.
    Increase the reach from your Genius charger to your X-Connect accessory.

    Genius Chargers + Accessories. Plug ‘N’ Play.
    The GC004 is compatible with multiple Genius chargers and all X-Connect accessories.

    Compatible with Genius Chargers:

    • GENIUS1
    • GENIUS2
    • GENIUS5
    • GENIUS10
    • GENIUS2X2
    • GENIUS2X4

    Compatible with Genius Accessories:

    • GC001
    • GC002
    • GC003
    • GC008
    • GC009
    Manuals, Datasheets & Other Downloads

    About NOCO

    Why choose NOCO?

    Innovating Since 1914

    Established in 1914, NOCO designs and creates premium consumer battery chargers, jump starters, air inflators, and batteries, as well as a wide range of accessories. Through these world-class offerings, NOCO has effectively set the new standard in design, performance, and safety and has introduced an entirely new generation of products.

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