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| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £19.95 | 7 to 10 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £19.95 | 7 to 10 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £7.99 | 3 to 5 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £7.99 | 5 to 7 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £7.99 | 7 to 10 working days |
Product Number: RTS3.7
Variations
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 × 171mm – 197mm (L × W × 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. "Standard delivery: 1–3 working days within UK mainland. 30-day returns.
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: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:PartsForMachines is a premier e-commerce platform, founded in 2019 in Warwickshire, UK, specialising in aftermarket parts and services for construction, agriculture, and industrial machinery. We offer an extensive catalogue of over 500,000 products. Standard delivery: 1–3 working days within UK mainland. We are proud to be an authorised distributor, giving customers extra confidence when purchasing genuine products from us. In addition, we provide a 30-day return policy for eligible items.
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 × W × H | 237mm × 171mm × 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 |
| Engine Parts | Product Number | Product Name | Recommended Units | Product Price |
|---|
Expert Guidelines for Preserving Your Heavy Equipment Battery Heavy machinery, including forklifts, bulldozers, and excavators, relies on robust batteries to minimize downtime and maximize operational availability. These batteries must endure even more challenging conditions than typical automotive batteries. Moreover,...
Standard Delivery: £7.99
Delivery Estimate: 3 to 5 working days
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| Technical Specification | |||||
|---|---|---|---|---|---|
| PRODUCT NUMBER | EK508 | EK454 | EK457 | LF057 | MX5 |
| Voltage | 12 | 12 | 12 | 12 | 12 |
| Capacity (AH) | 50 | 45 | 45 | 45 | 40 |
| Cold Cranking Amps (EN1) | 800 | 380 | 380 | 320 | 310 |
| Terminal Type | 3 | 1 | |||
| Length | 260 | 237 | 237 | 236 | 194 |
| Width | 173 | 127 | 127 | 125 | 120 |
| Height | 206 | 227 | 227 | 220 | 180 |
| Show More | |||||
A. 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.
A. 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.
A. 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.
A. 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.
A. 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.
A. 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.
A. 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.
A. Orders for the Optima Red Top RTS3.7 are dispatched on a standard parcel service with an estimated delivery time of 1–3 working days to UK mainland addresses. A 30-day returns policy applies; please ensure the battery is unused and in its original packaging when returning.
A. 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.
A. The battery measures 237mm (length) × 171mm (width) × 197mm (height including terminals) and weighs 15.6kg.
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