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Technical Specification
PRODUCT NUMBER YBX9027EK508EK454EK457LF027
Voltage 1212121212
Capacity (AH) 6050454560
Hold Down B3
Cold Cranking Amps (EN1) 640800380380680
Terminal Type T11
Length 242260237237242
Width 175173127127175
Height 190206227227190
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Q 1. What is the cold cranking amp (CCA) rating of the Optima Red Top 8078-209?

A. The Optima Red Top 8078-209 is rated at 815 CCA to the EN standard, providing strong and reliable engine starting performance in cold or demanding conditions.

Q 2. What are the dimensions of the Optima Red Top 8078-209 battery?

A. The battery measures 254mm in length, 185mm in width, and 184mm in height including the terminal, making it a compact unit suited to performance and modified vehicle applications with limited battery tray space.

Q 3. What terminal type and polarity does the Optima Red Top 8078-209 use?

A. The battery uses side terminals with a B00 hold-down base configuration and Polarity 1 layout. Confirm terminal placement is compatible with your vehicle's battery leads and tray before ordering.

Q 4. Is the Optima Red Top 8078-209 compatible with start-stop vehicles?

A. The AGM technology used in this battery supports start-stop systems in principle; however, compatibility must be verified against the product label and your vehicle manufacturer's specification before fitting.

Q 5. What AGM technology does Optima use in the Red Top battery?

A. Optima uses its proprietary SpiralCell AGM construction, in which pure lead plates are wound into a cylindrical cell. This eliminates free electrolyte, reduces internal resistance, and improves vibration resistance compared to conventional flat-plate AGM designs.

Q 6. What is the capacity of the Optima Red Top 8078-209?

A. The battery has a rated capacity of 50Ah at the C20 discharge rate. This figure represents the usable energy available under standard test conditions.

Q 7. What is the weight of the Optima Red Top 8078-209?

A. The battery weighs 18kg. This should be accounted for when assessing vehicle payload and when planning installation in weight-sensitive or competition builds.

Q 8. Is the Optima Red Top 8078-209 spill-proof and sealed?

A. Yes. The valve-regulated, sealed AGM construction means there is no free liquid electrolyte. The battery is spill-proof and can be mounted in a variety of orientations where the installation permits and the terminal configuration allows.

Q 9. What warranty is provided with the Optima Red Top 8078-209?

A. The battery is covered by a 2-year manufacturer warranty against defects in materials and workmanship from the date of purchase. Retain your proof of purchase for any warranty claim.

Q 10. How long will delivery take for the Optima Red Top 8078-209?

A. Standard delivery within UK mainland takes 1–3 working days. A 30-day returns policy applies. For delivery to non-mainland UK addresses, please contact us prior to ordering.

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