OPTIMA YellowTop YT S 2.7 J AGM lead-acid battery 12V 38Ah

The OPTIMA YellowTop YT S 2.7 J is a revolutionary high-performance AGM battery that combines the maximum starting power of a starter battery with the cycle life of a supply battery thanks to its patented SPIRALCELL TECHNOLOGY®. With a nominal voltage of 12 V, a capacity of 38 Ah and a high cold cranking current, it is the ultimate solution for modern vehicles with extensive electrical equipment, powerful hi-fi systems or demanding off-road accessories in a compact form factor.

Highlights at a glance

• Dual-purpose functionality: Maximum starting performance and excellent cycle life in a single battery.
• SPIRALCELL TECHNOLOGY®: Unique spiral cell design for extreme vibration resistance and longer service life.
• High cycle life: Ideal for vehicles with many electrical consumers and for repeated deep discharges.
• Absolutely maintenance-free and leak-proof: The sealed AGM design allows installation in almost any position.
• Compact design: High performance for vehicles with limited installation space, especially Asian models.

Maximum performance for demanding vehicles

The OPTIMA YellowTop YT S 2.7 J has been purpose-designed for the extreme demands of modern vehicles, which go far beyond simply starting the engine. It is the ideal choice for vehicles with sophisticated sound systems, additional headlights, winches and other energy-intensive consumers. The YellowTop also demonstrates its superior performance and longevity in vehicles used seasonally or for frequent short trips that put a heavy strain on conventional batteries.

Superior SPIRALCELL TECHNOLOGY®

The heart of every OPTIMA battery is the unique SPIRALCELL TECHNOLOGY®. Instead of flat lead plates, highly pure lead spirals are used and wrapped with glass fibre fleece (AGM). This compact and extremely robust design minimises internal resistance, resulting in outstanding starting power, faster charging and unsurpassed resistance to vibration. This technology makes the YellowTop the perfect hybrid solution for starting and supplying.

Built for the toughest conditions

The OPTIMA YellowTop is designed for tough applications. Its sealed construction not only prevents acid leakage, but also evaporation, making it completely maintenance-free. The robust housing made from impact-resistant polypropylene and its up to 15 times higher vibration resistance compared to conventional batteries ensure that vibration and shocks in demanding driving conditions cannot harm the battery.
 

Features

FAQs about the OPTIMA YellowTop battery

What is the main advantage of SPIRALCELL TECHNOLOGY®?

The spiral cell technology provides an extremely robust and vibration-resistant internal structure, very low internal resistance for high starting currents as well as excellent cycle life. It combines the benefits of a starter and deep-cycle battery in a single product.

What is the difference between OPTIMA YellowTop and RedTop?

YellowTop: A dual-purpose battery (starting and supply). It is ideal for vehicles with high energy requirements from additional consumers (e.g. winch, large hi-fi systems), as it can tolerate deep discharges. RedTop: A pure high-performance starter battery for maximum starting power. It is the right choice when starting is the main load and there is no deep discharge cycles.

What does the suffix "J" in the model name mean?

The letter "J" in the model designation YT S 2.7 J stands for "JIS" (Japanese Industrial Standard). This means that the battery has the narrower, tapered battery posts typically used in Japanese and other Asian vehicle brands.

Which charger do I need for this AGM battery?

For AGM batteries, especially for OPTIMA batteries, a modern, microprocessor-controlled charger with a special AGM charging profile is recommended. This ensures a complete and gentle charge and maximises battery lifetime.

How should this lead-acid battery be disposed of?

Lead-acid batteries contain substances harmful to the environment and must not be disposed of in household waste. You can return your old battery free of charge to any dealer selling new batteries or to municipal collection points to ensure proper recycling.