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MOTOBATT MB18U QUADFLEX AGM BIKE BATTERY 12V 22.5AH

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Full Product Details
MOTOBATT MB18U QUADFLEX AGM BIKE BATTERY 12V 22.5AH
Introducing the MOTOBATT MB18U QUADFLEX AGM BIKE BATTERY 12V 22.5AH, a top-tier power solution for your motorcycle. MOTOBATT has built a reputation since 2008 for its premium powersport batteries, and this model exemplifies their innovation and quality.
Innovative Design
The MOTOBATT MB18U features a unique 4-terminal design, allowing for effortless installation and versatility. This revolutionary approach minimises the number of battery models needed, while the included spacers ensure compatibility with various applications. Its perfect for both enthusiasts and professionals seeking reliable power on the road.
High Performance
- High Amp Hour Capacity: Boasting a robust 22.5AH rating for excellent performance.
- Cold Cranking Amps (CCA): Designed for rapid recovery and multiple cold start attempts.
- AGM Technology: Utilises Absorbed Glass Mat separators and 99.99% pure lead plates for enhanced durability.
Maintenance-Free Convenience
This battery is maintenance-free, meaning you can focus on your ride without worrying about upkeep. Additionally, it comes with a 2-year warranty, providing you with peace of mind and reliability.
Compatibility
The MOTOBATT MB18U is a direct replacement for several part numbers, including:
- 51815
- YB18-A
- YB18L-A
- YB18L-A2
*Always cross reference dimensions and specifications to your existing battery before ordering.
At AMP, we pride ourselves on being a trusted curator of the finest automotive power and care products. With our expertise, you can be confident in selecting the MOTOBATT MB18U QUADFLEX AGM BIKE BATTERY 12V 22.5AH for your vehicle. Power up with the best, shop AMP now.
Customers usually keep this item
This product has fewer returns than average compared to similar products
Pairs well with

MOTOBATT MB18U QUADFLEX AGM BIKE BATTERY 12V 22.5AH

If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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SHIPPING
We offer both standard and express shipping. Free express shipping on orders over £80. For our full shipping policy see here.
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FAQ’s
For any and all frequently asked questions regarding ordering or products click here.
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CONTACT
Contact us via info@automotorparts.co.uk or alternatively call us on 0330 122 5848.
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Information
Visit our Help Centre here. Or Contact us
Technical Specification

Better brands at factory prices

Shop the MOTOBATT MB18U QUADFLEX AGM BIKE BATTERY 12V 22.5AH for less at AMP
MOTOBATT MB18U QUADFLEX AGM BIKE BATTERY 12V 22.5AH
Introducing the MOTOBATT MB18U QUADFLEX AGM BIKE BATTERY 12V 22.5AH, a top-tier power solution for your motorcycle. MOTOBATT has built a reputation since 2008 for its premium powersport batteries, and this model exemplifies their innovation and quality.
Innovative Design
The MOTOBATT MB18U features a unique 4-terminal design, allowing for effortless installation and versatility. This revolutionary approach minimises the number of battery models needed, while the included spacers ensure compatibility with various applications. Its perfect for both enthusiasts and professionals seeking reliable power on the road.
High Performance
- High Amp Hour Capacity: Boasting a robust 22.5AH rating for excellent performance.
- Cold Cranking Amps (CCA): Designed for rapid recovery and multiple cold start attempts.
- AGM Technology: Utilises Absorbed Glass Mat separators and 99.99% pure lead plates for enhanced durability.
Maintenance-Free Convenience
This battery is maintenance-free, meaning you can focus on your ride without worrying about upkeep. Additionally, it comes with a 2-year warranty, providing you with peace of mind and reliability.
Compatibility
The MOTOBATT MB18U is a direct replacement for several part numbers, including:
- 51815
- YB18-A
- YB18L-A
- YB18L-A2
*Always cross reference dimensions and specifications to your existing battery before ordering.
At AMP, we pride ourselves on being a trusted curator of the finest automotive power and care products. With our expertise, you can be confident in selecting the MOTOBATT MB18U QUADFLEX AGM BIKE BATTERY 12V 22.5AH for your vehicle. Power up with the best, shop AMP now.
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We operate a hassle-free return and refund policy as well as an award-wining customer care and product support service.
FAQs
Please read our FAQs page to find out more.
What is your return policy?
We offer a 30-day return policy, meaning you have 30 days from the date you receive your item to request a return. To qualify, the item must be unused, unworn, in its original condition with tags attached, and in its original packaging. You’ll also need your receipt or proof of purchase. To initiate a return, contact us at info@automotorparts.co.uk, and if approved, we’ll provide a return shipping label and instructions. Returns should be sent to: 125 Deansgate, Manchester, M3 2BY. Note that items sent back without prior approval won’t be accepted. For EU customers, you also have a 14-day cooling-off period to cancel or return your order for any reason, provided the item meets the same conditions.
How do I report a damaged or incorrect item?
If your order arrives defective, damaged, or isn’t what you ordered, please inspect it upon delivery and contact us immediately at info@automotorparts.co.uk. We’ll assess the situation and work quickly to resolve it—whether that means a replacement, refund, or other solution. Your satisfaction is our priority, and we’re here to make it right.
What items cannot be returned?
Some items are non-returnable, including perishable goods (e.g., food, flowers, or plants), custom or personalized products, personal care items (e.g., beauty products), hazardous materials, flammable liquids, or gases. Sale items and gift cards are also non-returnable. If you’re unsure about your specific item, feel free to reach out to us at info@automotorparts.co.uk for clarification.
How does shipping work, and how long will it take?
We ship from our UK location and offer reliable options tailored to your needs:
- UK Shipping: Standard (2-4 business days) or Express (1-3 business days).
- Poland (EU): Standard International (2-11 business days) or Express International (2-7 business days).
- Other International Destinations: Standard International (3-17 business days) to select countries like the UAE, Australia, and Canada—check eligibility at checkout.
Delivery times are estimates and may vary due to location, customs (for international orders), or product specifics (e.g., bulkier items like batteries). Customs duties and taxes, where applicable, are your responsibility. Exact shipping options and times will be shown at checkout.
When will I receive my refund?
Once we receive and inspect your return, we’ll notify you if it’s approved. If approved, your refund will be processed to your original payment method within 10 business days. Depending on your bank or credit card provider, it may take additional time for the refund to appear in your account. If it’s been more than 15 business days since approval and you haven’t seen your refund, please contact us at info@automotorparts.co.uk for assistance.