- Fast Delivery on UK Orders
- Minimum 12-Month Guarantee
- Free Telephone Support

OPTIMA RTS4.2R RED TOP CAR BATTERY 50Ah 815A

Trade rates and Bulk Discounts available.
Full Product Details
OPTIMA RTS4.2R RED TOP CAR BATTERY 50Ah 815A
The OPTIMA RTS4.2R RED TOP CAR BATTERY 50Ah 815A is a premium choice for those seeking reliable automotive power. Renowned for its exceptional performance, this battery is designed to meet the demands of starting, lighting, and ignition (SLI) applications. With over 40 years of expertise, Optima Batteries has established a reputation for delivering top-quality power solutions worldwide, and at AMP, we proudly stock this trusted brand.
Key Features and Specifications
- Capacity: 50Ah
- Cold Cranking Amps: 815A
- Technology: SpiralCell AGM (Absorbent Glass Mat)
- Maintenance: Maintenance-free design
- Warranty: 1 Year warranty for peace of mind
- Vibration Resistance: Built to withstand harsh conditions
- Temperature Resistance: Performs well in extreme temperatures
Why Choose OPTIMA RTS4.2R?
The OPTIMA RTS4.2R RED TOP CAR BATTERY utilises advanced SpiralCell technology, originally developed for lunar rovers, providing superior power and reliability. This battery is fully sealed, ensuring a low self-discharge rate for an extended shelf life. Its design allows for faster charging and a robust performance suitable for a variety of applications, including automotive, commercial, marine, and more.
AGM Technology Explained
With its innovative AGM technology, the OPTIMA RTS4.2R features dry-cell construction, where the positive and negative plates are separated by an absorbent glass mat. This design minimises electrolyte spillage and enhances safety. Furthermore, it uses a higher purity of lead than standard AGM batteries, which extends battery life while boosting performance. Enjoy superior starting power, rapid recharge capabilities, and excellent shock and vibration resistance.
Whether youre tackling daily drives or demanding tasks, the OPTIMA RTS4.2R RED TOP CAR BATTERY is engineered to keep you moving with confidence. At AMP, weve curated the best automotive power solutions to empower your vehicle maintenance.
Power up with the best, shop AMP now.
Customers usually keep this item
This product has fewer returns than average compared to similar products
You may also like

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.
-
SHIPPING
We offer both standard and express shipping. Free express shipping on orders over £80. For our full shipping policy see here.
-
FAQ’s
For any and all frequently asked questions regarding ordering or products click here.
-
CONTACT
Contact us via info@automotorparts.co.uk or alternatively call us on 0330 122 5848.
-
Information
Visit our Help Centre here. Or Contact us
Technical Specification
UK Reference:

Shop quality brands at great prices

Shop the OPTIMA RTS4.2R RED TOP CAR BATTERY 50Ah 815A for less at AMP
OPTIMA RTS4.2R RED TOP CAR BATTERY 50Ah 815A
The OPTIMA RTS4.2R RED TOP CAR BATTERY 50Ah 815A is a premium choice for those seeking reliable automotive power. Renowned for its exceptional performance, this battery is designed to meet the demands of starting, lighting, and ignition (SLI) applications. With over 40 years of expertise, Optima Batteries has established a reputation for delivering top-quality power solutions worldwide, and at AMP, we proudly stock this trusted brand.
Key Features and Specifications
- Capacity: 50Ah
- Cold Cranking Amps: 815A
- Technology: SpiralCell AGM (Absorbent Glass Mat)
- Maintenance: Maintenance-free design
- Warranty: 1 Year warranty for peace of mind
- Vibration Resistance: Built to withstand harsh conditions
- Temperature Resistance: Performs well in extreme temperatures
Why Choose OPTIMA RTS4.2R?
The OPTIMA RTS4.2R RED TOP CAR BATTERY utilises advanced SpiralCell technology, originally developed for lunar rovers, providing superior power and reliability. This battery is fully sealed, ensuring a low self-discharge rate for an extended shelf life. Its design allows for faster charging and a robust performance suitable for a variety of applications, including automotive, commercial, marine, and more.
AGM Technology Explained
With its innovative AGM technology, the OPTIMA RTS4.2R features dry-cell construction, where the positive and negative plates are separated by an absorbent glass mat. This design minimises electrolyte spillage and enhances safety. Furthermore, it uses a higher purity of lead than standard AGM batteries, which extends battery life while boosting performance. Enjoy superior starting power, rapid recharge capabilities, and excellent shock and vibration resistance.
Whether youre tackling daily drives or demanding tasks, the OPTIMA RTS4.2R RED TOP CAR BATTERY is engineered to keep you moving with confidence. At AMP, weve curated the best automotive power solutions to empower your vehicle maintenance.
Power up with the best, shop AMP now.
Fast and efficient service
Shop leading brands at factory prices.

Order before 1pm
Free Express Delivery
Secure your order before 1pm and enjoy FREE express delivery on all products. Take advantage of our fast and reliable express delivery service by securing your order before 1pm.

Quality assured
Approved products and parts
Before retailing, each product is meticulously inspected to guarantee high quality standards.

Here when you need us
Assistance you can depend on
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.