【YellowTop B24 Type Slim Series｜High-Performance Battery Built for Deep Discharge】

You might consider the Optima YellowTop B24 Type Slim Series if you don’t drive your car often, you frequently use electricity for things like security systems and car audio, or you’re concerned about the battery’s condition.

Compared to a typical starting battery, this is a deep-cycle type starting battery that is easier to handle repeated charge/discharge cycles and deep discharges. Thanks to Optima’s unique spiral cell technology, it’s easier to maintain a stable voltage and has low self-discharge. That makes it well-suited for cars you only drive a few times per month, as well as vehicles whose usage frequency changes with the seasons.

In cars equipped with security systems—or in car audio setups with added amplifiers, subwoofers, and more—there are times when electricity is used even while the vehicle is parked. The YellowTop is one of the options that helps support the power environment of such vehicles. Depending on the vehicle’s power condition and system configuration, you may also notice differences in sound quality, such as stronger mid/low-end performance and better cohesion in the high frequencies.

It’s also used in vehicles equipped with power-hungry equipment such as winches, engine heaters, and large car audio systems. Since it has the performance expected of a starting battery as well, it’s a good fit for anyone who wants to cover both everyday starting needs and electrical accessories with a single battery.

Batteries can’t be chosen based only on capacity and size. It’s important to check the vehicle specifications, how frequently you use it, the electrical accessories installed, and even the charging condition—then select the one that matches how you’ll actually use it. At LOGON, we review everything together—including your car audio and security system configuration—so you’ll have a setup that’s easy to use after the replacement.

If you have concerns about your current battery, or you’d like to reconsider the power environment for your audio and security systems, please tell us your vehicle information and current usage situation. If I were advising you, I would first check how you use the car and what electrical accessories you have, then determine whether the YellowTop is a good match.

Main Specifications & Specs

【Basic Information】
Product name: YellowTop B24 Type Slim Series
Brand: Optima
Type: Starting battery capable of deep discharge
Maintenance: Maintenance-free

【Performance & Features】
Designed for repeated charge/discharge
Performance as a starting battery
Low self-discharge rate
Spiral cell technology
Construction that helps suppress internal resistance and makes it easier to release energy

【Capacity】
20-hour rate (EN) / BCI: 38Ah

【Terminal Standards】
R1 / R2 / L1 / L2 terminals
Large post / Small post

【Dimensions】
Width: 233mm
Thickness: 129mm
Box height: 203mm
Total height: 230mm

Shop owner　Komizo