TWS Technology’s Max-Pro ESS Earns International IEC 62933 Certification

TWS Technology is proud to announce that our independently developed Max-Pro Liquid-Cooling C&I Energy Storage Cabinet has successfully passed the IEC 62933-5-2:2020 safety tests.

Conducted by the global certification leader SGS, this milestone confirms that the Max-Pro system meets the world’s highest standards for safety, reliability, and grid compatibility.

Global Standards, Proven Safety

The IEC 62933 series is the international benchmark for energy storage safety. By passing the stringent IEC 62933-5-2:2020 testing, the Max-Pro demonstrated excellence across several critical dimensions:

  • Electrical & Battery Safety: Ensuring stable performance during grid interaction.
  • Environmental Adaptability: Reliability in demanding industrial climates.
  • Functional Safety: Rigorous protection throughout the entire product lifecycle—from installation to fault response.

Why Choose Max-Pro?

The Max-Pro cabinet is specifically engineered for high-load commercial and industrial (C&I) environments. It combines cutting-edge liquid cooling with a compact, modular design.

Key Features & Benefits:

  • Integrated AC/DC Design: Featuring a built-in PCS to save floor space and simplify on-site installation.
  • Advanced Thermal Management: Liquid cooling technology keeps battery temperatures stable, even under heavy cycles.
  • Multi-Level Protection: Equipped with gas and liquid fire suppression, plus an intelligent early-warning system to detect and prevent thermal runaway in real-time.
  • High Efficiency: Optimized energy density and modular architecture allow for seamless expansion and a lower Levelized Cost of Energy (LCOE).

Empowering the Global Energy Transition

Passing the SGS-conducted tests proves that TWS Technology can mitigate risks in complex grid environments, providing a “trust-first” solution for our global partners.

As we expand further into the global C&I market, we remain committed to technological innovation and safety. This certification is not just a badge of quality—it is our promise to help businesses transition to clean energy with confidence.

Ready to optimize your energy strategy? Contact our team today to learn how Max-Pro can power your business.

Message Us