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Optima Red Top Starter Battery - 8020-255 12V 44Ah - RTS3.7, 2 Years Warranty

Optima Red Top Starter Battery - 8020-255 12V 44Ah - RTS3.7, 2 Years Warranty

£184.33 - £184.33
£184.33
£184.33 - £184.33
£184.33
  • Product Description
  • Technical Specification
  • Warranty Details

  • Product Number: RTS3.7

    High-performance starter batteries must deliver instant, reliable cranking power whilst withstanding the vibration and heat cycles inherent in demanding automotive environments. The Optima Red Top 8020-255 is an AGM starter battery engineered specifically for vehicles where dependable cold-start performance and resilience under mechanical stress are non-negotiable. Optima's Spiral Cell AGM technology replaces conventional flat-plate construction with tightly wound lead-calcium cells separated by absorbent glass mat. This configuration virtually eliminates acid spillage risk, provides up to 15 times greater vibration resistance than flooded equivalents, and supports faster recharge acceptance - making it well suited to tuned street cars, high-performance applications, and equipment such as generators where space is limited but output demands are high. The 8020-255 operates at 12V and delivers 44Ah capacity (C20) with a cold cranking amp rating of 730A (EN). Physical dimensions are 237mm x- 171mm - 197mm (L x- W x- H), weight is 15.6kg, and the battery features SAE Post terminals with standard terminal placement (Type 1 polarity) and hold-down provision B01. This battery supports start-stop technology - verify compatibility against the product label before fitment. No direct cross-reference is listed; confirm suitability against your vehicle's BCI/EN specification." No additional variants are available for this reference. This product is covered by a 2-year manufacturer's warranty against defects in materials and workmanship. " . The OPTIMA REDTOP high-performance AGM Battery is designed for starter applications. Its ideal for tuned and street cars, and other high-performance applications. Its even powerful enough to start generators while having small space requirements. Key Feature: Backed by 2-year warranty for reliable use and dependable performance. Product Group: 3100, OPTIMA RED TOP BATTERY, Optima AGM Battery, purpose-built for dependable performance in the intended application. Engineered as a AGM Battery, delivering consistent, reliable operation in daily use. Manufactured by Optima, a trusted name known for dependable quality. Weighs 15.6kg, balancing power and manageability for easier installation and handling. . OEM-style fitment supports straightforward replacement and proper mounting. 12V system compatibility with standard vehicle electrical requirements. Compatibility: Engineered for modern passenger vehicles, providing reliable starting power, voltage stability, and long-term durability to support daily commuting and standard automotive electrical demands. Uses: Restores dependable starting for vehicles that need consistent, everyday performance. Suited to AGM battery applications, delivering steady operation in daily driving conditions. Supports stable power delivery for ignition, lighting, and onboard electronics. Performs reliably across short trips and longer runs where dependable restarts are essential. About MachineRefurb: MachineRefurb is an e-commerce platform specialising in replacement parts, spares and consumables for construction, agriculture and industrial machinery, serving customers across Ireland, the United Kingdom and Europe. We offer an extensive catalogue of over 200,000 products to keep your machines running. Standard delivery: 1-7 working days across Ireland, the UK and Europe. Fitment Warning: You must check your current battery against the specifications of this battery before ordering to ensure that this is the correct battery for your vehicle. Check battery technology, dimensions, terminal type, polarity, capacity (AH) and cranking performance (CCA). We cannot guarantee correct fitment under any circumstances.

    • Brand: Optima Batteries
    • Voltage: 12V
    • Capacity AH (C20): 44Ah
    • Cold Cranking Amps (EN): 730A
    • L x- W x- H: 237mm x- 171mm x- 197mm
    • Warranty period: 2 Years
    • Weight (Kg): 15.6
    • Capacity AH (C5):
    • Capacity AH (C10):
    • Capacity AH (C100):
    • Marine Cranking Amps (MCA):
    • Watt-Hours (WH):
    • Length (mm): 237
    • Width (mm): 171
    • Height Inc. Terminal (mm): 197
    • Terminal Placement: 1
    • Terminal Type: 1
    • Hold Down: B01
    • Case Size:
    • ETN Number:
    • TTNR:
  • New Grade - 24 Months Warranty from purchase is available on this product.
Frequently Asked Questions

Q1- What is the cold cranking amp (CCA) rating of the Optima Red Top 8020-255?
ANS- The Optima Red Top 8020-255 (RTS3.7) is rated at 730 cold cranking amps (CCA) measured to the EN standard, making it well suited to high-performance and hard-to-start applications.

Q2- What are the dimensions and weight of the Optima Red Top RTS3.7?
ANS- The battery measures 237mm (length) — 171mm (width) — 197mm (height including terminals) and weighs 15.6kg.

Q3- What terminal type and polarity does the 8020-255 use?
ANS- The Optima Red Top 8020-255 is fitted with SAE Post terminals. Terminal placement is Type 1 polarity (positive terminal on the left when viewed from the front). Always verify polarity against your vehicle's battery tray layout before fitment.

Q4- Is the Optima Red Top 8020-255 compatible with start-stop vehicles?
ANS- Optima's AGM technology supports start-stop operation in principle; however, you must verify compatibility against the specification label on the product itself and your vehicle manufacturer's requirements before installation.

Q5- What hold-down type is required for the Optima Red Top RTS3.7?
ANS- This battery uses hold-down type B01. Ensure your vehicle's battery tray and clamp arrangement is compatible with this hold-down specification before ordering.

Q6- What makes AGM construction different from a standard flooded battery?
ANS- In an AGM (Absorbent Glass Mat) battery, the electrolyte is suspended within fibreglass matting between the plates rather than being free liquid. This eliminates acid spillage risk, allows the battery to be mounted in various orientations, and provides significantly greater resistance to vibration - up to 15 times that of conventional flooded batteries according to Optima's design specification.

Q7- Is there a cross-reference to confirm this battery replaces my existing fitment?
ANS- No cross-reference data is currently listed for the RTS3.7 8020-255. To confirm suitability, compare the voltage (12V), capacity (44Ah), CCA rating (730A EN), and physical dimensions (237 — 171 — 197mm) against your vehicle manufacturer's battery specification.

Q8- What warranty is provided with the Optima Red Top 8020-255?
ANS- The battery is covered by a 2-year manufacturer's warranty against defects in materials and workmanship from the date of purchase, when used in its intended application.

Q9- What applications is the Optima Red Top designed for?
ANS- The Red Top series is purpose-built for starter applications in tuned street cars, high-performance vehicles, and other demanding uses including generators. It is not designed as a deep-cycle battery; for dual-purpose or cycling applications, the Optima Yellow Top range should be considered instead.

Q10- How will my order be delivered and what is the returns policy?
ANS- You may cancel your purchase within 14 days of delivery without providing a reason. To be eligible for a return, the item must be unused, in its original packaging and in a resellable condition. Proof of purchase is required.
Please note returns are not accepted for personalised or customised items, sealed goods that have been unsealed, or items that cannot be returned for hygiene reasons.
To arrange a return, contact us at customer@machinerefurb.com with your order number, reason for return and photos if applicable. Return postage is the customer's responsibility unless the item is defective, damaged or incorrect.

Q11- What are the delivery times?
ANS- Estimated delivery times are as follows:
* Ireland: 1-3 business days
* UK Mainland: 1-3 business days
* Northern Ireland: 3-7 business days
* European Union: 3-7 business days
All orders are shipped with tracking. You will receive tracking details by email once dispatched.

Q12- What is the warranty period for this product?
ANS- This product is covered under a 2-year warranty from the date of purchase.

Grade: New

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