MK Battery Expands its Global Footprint with the Addition of Sironi Batterie
October 1, 2026 – MK Battery is pleased to announce the acquisition of Sironi Batterie Srl, one of Italy’s most respected battery companies, and a business that has served its customers for more than 100 years.
Founded in 1924, Sironi Batterie has earned a reputation for offering quality batteries, trusted technical knowledge, and exceptional service, while maintaining long-standing customer relationships throughout Italy.

For over 30 years, Sironi Batterie has enjoyed a close association with East Penn Manufacturing, the parent company of MK Battery. That relationship, and the progression to partnering with MK Battery in Italy, makes this acquisition a natural fit. “For decades, it has been clear that Sironi, East Penn and MK Battery share similar values,” said Walker Rheem, President of MK Battery. “These companies are relationship-driven businesses that care deeply about serving their customers, supporting employees, offering quality products and building for the future.”

A key part of the transaction is continuity. Sergio Sironi, Managing Director of Sironi Batterie, and the entire Sironi team will continue leading the company, preserving the culture and reputation that customers have come to trust over generations.
According to Sergio Sironi, “Today, as we join MK Battery, a new chapter begins, bringing greater opportunities for growth and development.

Our team in Italy is ready to give its all to impose the excellence of MK DEKA products and of the Company which we are joining with pride.

About MK Battery
MK Battery, a wholly owned subsidiary of East Penn  Manufacturing, and headquartered in Anaheim, CA, is a leading global supplier of specialty battery solutions for deep-cycle and standby power applications.
Founded in 1983, MK Battery serves customers across mobility, energy storage, telecommunications, UPS, industrial, traffic and medical markets through a commitment to high-quality products, top-tier distribution, innovation, and customer service.

About Sironi Batterie
Sironi Batterie Srl is a Milan-based specialty battery distributor with a history dating back to 1924, making it one of Italy’s most long established companies in the battery industry. The company is headquartered in Milan, Italy and is now in its third generation of family leadership. Sironi Batterie supplies battery solutions for a wide range of applications including mobility, marine, energy storage and many other critical markets.

About East Penn Manufacturing
Founded in 1946, East Penn Manufacturing is a family-owned leader in battery and energy storage solutions. Headquartered in Lyon Station, Pennsylvania, the company manufactures and distributes batteries and related products for automotive, commercial, motive power, reserve power, and energy storage applications worldwide. Through its Deka® and Unigy brands and commitment to innovation, quality, and sustainability, East Penn serves customers across a broad range of industries and markets.