Optima YT S 2,7J – Optima Yellow Top AGM batteries
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The Optima Yellow Top AGM series is designed for vehicles that require exceptional power delivery and deep cycling capabilities. Known for its advanced AGM (Absorbent Glass Mat) technology, the Yellow Top series offers superior resistance to charge and discharge cycles, making it ideal for vehicles with start-stop systems, high electrical demands, and auxiliary power needs. Unlike conventional lead-acid batteries, AGM technology ensures a maintenance-free design, providing excellent vibration resistance, faster recharge times, and extended service life. Optima batteries are recognized for their durability and reliability, making them a top choice for both everyday drivers and professional users who require dependable performance under demanding conditions.
The Optima Yellow Top YT S 2,7J is a compact yet powerful 38Ah AGM battery, delivering a strong 460A cold cranking amperage to ensure reliable engine starts. Measuring 237mm in length, 129mm in width, and 227mm in height, this battery closely matches the B24 size specification, which is more commonly found in Asian vehicles. Unlike standard European batteries, the YT S 2,7J features a unique polarity configuration with the positive terminal positioned on the left (configuration 1), which differs from the more traditional right-positive setup found in many European models. This design feature makes it essential to check vehicle compatibility before installation.
Another notable feature of the YT S 2,7J is its terminal type. The battery is equipped with thinner, Japanese-style type 3 terminals, which differ from the more common European type 1 terminals. This makes it particularly well-suited for vehicles manufactured by Japanese and other Asian automakers, where these terminal specifications are standard. The presence of these specific connectors ensures a secure and efficient connection with compatible vehicles, reducing installation complexity.
The YT S 2,7J also features a B00 mounting system, which lacks the bottom securing ledges commonly found in B13 or B1 configurations. This means the battery must be secured using an alternative method, such as side clamps or top brackets, depending on the vehicle’s mounting requirements. The absence of a bottom mount ledge allows for more flexibility in installations where traditional mounting constraints might be an issue.
When compared to similar AGM batteries, the Optima Yellow Top YT S 2,7J competes closely with the GS Yuasa Auxiliary AGM HJ-S46B24R, which has slightly higher capacity at 45Ah but a lower starting power of 325A. Both batteries share nearly identical dimensions and mounting configurations, making them viable replacements for each other in compatible applications. However, the Optima Yellow Top offers superior cold cranking performance, making it a better choice for vehicles requiring higher starting power.
Overall, the Optima Yellow Top YT S 2,7J is a high-quality AGM battery designed for specialized automotive applications. With its compact size, left-positive terminal layout, Japanese-style connectors, and B00 mounting configuration, it is an excellent choice for vehicles requiring a reliable and maintenance-free power source. Its ability to withstand deep cycling, rapid recharging, and high vibration resistance ensures long-lasting performance, making it a valuable option for demanding automotive electrical systems.