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YTX20L (YTX20L-BS) 12V Yuasa MF VRLA Battery

Sale price £85.46

Factory activated sealed battery, ready to fit and go. High performance AGM VRLA batteries incorporate extra battery plates with a specialist design for increased cranking amps and longer life.

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Prices Inc. VAT. Free next day delivery if ordered before 3pm (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). 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.

  • 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 15 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 15-day cancellation 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

Finding the right battery

The easiest way to find the right battery is using our Yuasa Battery Finder.

How to fit your battery

Learn how to safely replace your motorcycle battery with GS Yuasa. Watch our step-by-step guide on how to change your battery and ensure it is the correct specification for your bike. Remember to always follow health and safety instructions and consult your vehicle's handbook.

00:00 – Introduction 
00:10 – Where to get a new battery 
00:25 – Choosing the correct battery
00:40 – Battery location 
01:15 – Battery replacement demo

For more information on Yuasa’s world-leading range of motorcycle batteries, visit www.yuasa.co.uk/bike
SKU: YU-YTX20L(WC) Barcode: 5050694044144
Brand: Yuasa

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    Description
    Voltage: 12v | Capacity: 18Ah

    These compact, lightweight AGM VRLA batteries deliver greater starting power from a more volume efficient unit.

    • Maximum power from minimum space - up to 30% more CCA than standard AGM batteries despite being lighter & more compact
    • Can be mounted at extreme angles with no risk of leakage
    • Ideal for sport bikes & also motorcycles with a Start - Stop system
    • Brass terminals for improved conductivity & optimised performance
    • Exceptional resistance to vibration & corrosion
    • Constructed with high purity lead
    • Supplied filled & ready to fit
    Technical Information
    Pack TypeWC
    Capacity Ah (10-HR)18
    Capacity Ah (20-HR)18.9
    Weight with acid (kg)6.7
    Acid volume (litre)0.93
    Charge current (Amps)1.8
    Terminal Type4
    Length (mm)175
    Width (mm)87
    Height (mm)155
    Feature RangeMaintenance Free
    Diagrams

    Layout: 12v-0




    Terminal: 4
    Compatible Vehicles

    Compatible vehicles for YTX20L (YTX20L-BS) Battery

    Please be aware that some vehicles may not appear on our fitment list but may still be compatible with this item. Please check your manufacturers recommendations or specifications for this information.
    While we make every effort to ensure all fitment and compatible parts data is complete and correct, it is your responsibility to check this information and ensure you are fitting the correct part and specification to suit your vehicle. Compatible products and notes are used at your own risk, and are displayed as a reference only. We cannot accept any liability for the use of any incompatible parts.
    Manuals, Datasheets & Other Downloads

    About Yuasa

    Why choose Yuasa?

    Yuasa batteries are highly regarded for several core reasons that make them a superior option:

    • Reliability and Longevity: Yuasa is renowned for producing batteries with long service lives and consistent, dependable performance. This means less worry about premature failure and a better return on investment.
    • High Quality Construction: They use advanced manufacturing techniques and high-quality internal components, often resulting in superior vibration resistance, better charge retention, and overall robustness compared to many budget brands.
    • Industry Expertise: With over 100 years of experience, Yuasa (now part of GS Yuasa) is a global leader in battery technology, continually innovating to meet the demanding specifications of modern vehicles.

    What Being an OEM Supplier Means for you

    The fact that Yuasa is an OEM supplier is perhaps the most convincing reason to choose it, as it validates the quality of the product:

    • Meets Exact Vehicle Specifications: OEM means the battery is supplied directly to vehicle manufacturers to be fitted in brand-new vehicles coming off the assembly line. These manufacturers require batteries to meet incredibly rigorous performance, size, and safety standards.
    • Guaranteed Fit and Performance: Since the battery meets the exact specifications set by the vehicle maker, a buyer can be confident that it will fit perfectly and deliver the precise power and capacity required by their vehicle's electrical system.
    • The Gold Standard: Vehicle manufacturers choose Yuasa because their batteries are proven to meet the highest benchmarks for quality and durability. By choosing Yuasa, you are buying the exact same quality component the manufacturer trusts to power their vehicle from day one.

    In short, when you buy a Yuasa battery, you are getting the original factory-fitted quality and performance, which is a significant upgrade over a generic aftermarket option.

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