Yuasa Battery YUAM2221B YSA Conventional Battery

Designed for long-lasting performance under challenging conditions, the 12N12A-4A-1 features high-grade polypropylene case materials and robust seals to withstand engine vibration, harsh terrain, and extreme weather. Heavy-duty internal through-partition connectors shorten the electrical current path, reducing internal resistance while maximizing starting power. Whether you are restoring a vintage street bike or maintaining essential lawn equipment, this classic battery option offers standard reliability backed by decades of trusted engineering.