Global Access Secured: Sunwoda’s 684Ah Stacking Cell Achieves Key International Certifications

As the industry’s first 684Ah stacking energy storage cell to achieve million-level mass production delivery, Sunwoda’s flagship product has successfully passed multiple authoritative international certifications, including UL, IEC, and CE. This achievement secures the necessary foundation for market entry and application across major global energy storage markets. Beyond highlighting the product's intrinsic safety and performance, these certifications validate Sunwoda’s systematic R&D and manufacturing capabilities in the field of large-capacity stacking cells.

Certification Success Rooted in Global Standards

UL, IEC, and CE represent the most significant safety and compliance frameworks in the current international energy storage market. Their testing dimensions comprehensively cover electrical performance, safety boundaries, environmental adaptability, failure behavior, and long-term reliability.

Aligning with the strict entry requirements of diverse global markets, the Sunwoda 684Ah cell has secured certifications for UL 1642, UL 1973, and UL 9540A, as well as IEC 62620 and IEC 62619. Furthermore, the product complies with RoHS directives and meets the new EU Battery Regulation (EU 2023/1542) regarding safety, environmental protection, and full-lifecycle compliance. This broad regulatory approval paves the way for compliant deployment worldwide.

For the 684Ah product, simultaneously passing these international standards demonstrates not only comprehensive safety and reliability but also the capability to maintain stable operations in real-world application scenarios.

Systematic R&D and Manufacturing: The Foundation of Global Entry

The technical challenges of large-capacity storage cells extend beyond merely increasing capacity. As individual cell capacity grows, the demands for consistency control, thermal management design, structural stability, and production yield rise exponentially.

The ability of Sunwoda’s 684Ah cell to achieve these certifications alongside mass production stems from the integration of international standards during the initial product design phase. By building a forward-engineering R&D system and leveraging mature stacking technologies with scalable manufacturing capabilities, Sunwoda ensures high consistency in mass-produced units. Additionally, a systematic testing and verification mechanism covering R&D, manufacturing, and application phases supports the product's long-term stability, ensuring the 684Ah cell is ready for continuous delivery and large-scale application.

The Value of Certification: Supporting Long-Term Application

As the energy storage industry transitions from "scale growth" to "high-quality development," international certifications are becoming critical for project bankability, system reliability, and long-term operational safety.

Obtaining these certifications marks a significant milestone in the development of Sunwoda’s 684Ah cell, enhancing its feasibility for overseas projects and providing a stable foundation for system integration and power station construction. It also offers a referenceable technical path for the application of large-capacity cells in broader scenarios.

Looking ahead, Sunwoda is expected to continue using global standards as a benchmark for R&D and manufacturing. The company aims to drive the iteration and upgrade of storage cells and system solutions, prioritizing safety and reliability to serve the long-term development needs of the global energy storage market.

Edit by paco

Last Update:2026-01-26 09:21:25