YBX Auxiliary Series

YBX Auxiliary Series Batteries

For hundreds of thousands of new, advanced, and luxury cars, trucks, and SUVs, auxiliary batteries are necessary to support the next-generation of technology. If you drive a luxury car like an Audi, BMW, or Mercedes, you need a 12V backup auxiliary battery to support the electrical load in conjunction with the starter battery. The YBX Auxiliary line meets that need and exceeds your expectations.

Designed to last longer on the shelf, YBX Auxiliary batteries are OEM quality, with exact standards and specifications ideal for cars, trucks, SUVs, along with several other vehicle types with enhanced auxiliary battery systems. That includes OEM matching lid ventilation, making them a safe, equal replacement to original equipment. Maintenance-free, spill-free, and made with Yuasa quality.

  • Original equipment (OE) quality, performance & specification

Trusted for over 40 years by Original Equipment Manufacturers and owners to deliver power and performance for both OEM and replacement battery needs.

  • Ideal for the unique requirements of vehicles with auxiliary battery systems

Modern technology calls for more power than traditional batteries can provide, and many vehicles with advanced tech require aux batteries. The     YBX Auxiliary battery series is designed to meet those unique requirements.

  • Maximum safety with spill proof construction & no free acid

Advanced materials and minerals, combined with Yuasa proven engineering, mean you never have to worry about spills or other safety concerns.

  • Performance Markings Exceeding U.S. Standards

Yuasa has chosen to adhere to the highest standards for Auxiliary battery markings even exceeding U.S. Standards, inspiring confidence that you get exactly what you expect with the YBX auxiliary series

  • 40+ Years of Quality in Motorsports brought to the Automotive Market

With over 40 years in the US and 100+ worldwide, Yuasa Automotive Aux batteries deliver the same unwavering quality they have become famous for  in the powersports market, now for the automotive batteries market.


*Limited supply of Automotive batteries currently available *

Search YUASA for the right YBX Auxiliary Series Battery


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