This afternoon, the R&D team at FES Power carried out a comprehensive performance verification test on our mobile EV charging and energy storage system. The objective of the test was to evaluate the stability and reliability of the equipment during continuous 60kW dual-gun discharge, while fully discharging the integrated battery system from a high state of charge to 0% under controlled operating conditions.

Unlike routine functional inspections, this test was designed to simulate demanding real-world charging scenarios where mobile charging equipment may be required to operate continuously for extended periods. By maintaining a constant high-power output until the battery reached complete depletion, our engineers were able to collect valuable performance data and verify the system’s behavior throughout the entire discharge cycle.

During the test, both DC charging connectors operated simultaneously, delivering a combined output power of 60kW. Throughout the discharge process, the engineering team closely monitored key operating parameters, including output power stability, battery voltage, current fluctuations, battery temperature, inverter performance, communication status, and the effectiveness of the Battery Management System (BMS). Every stage of the test was recorded and analyzed to ensure that all components performed within the expected design specifications.

One of the primary goals of this validation was to confirm that the mobile charging system could maintain stable power delivery even as the battery state of charge gradually decreased. In practical applications, stable output is essential for ensuring a safe and consistent charging experience, especially when providing emergency charging services, roadside assistance, fleet support, or temporary charging at locations without fixed charging infrastructure.

The engineering team also evaluated the interaction between the energy storage system and the power conversion system during the complete discharge process. Continuous monitoring confirmed that the system maintained smooth operation without abnormal interruptions, unexpected shutdowns, or significant power fluctuations. These results demonstrate the effectiveness of the system’s intelligent power management strategy and thermal control design under sustained operating conditions.

Another important aspect of today’s testing was the verification of the system’s protection mechanisms. As the battery approached its minimum state of charge, the equipment successfully executed the predefined low-voltage protection sequence, ensuring that the battery pack was protected from over-discharge while allowing the charging process to conclude safely. This controlled shutdown behavior is essential for extending battery life and maintaining long-term operational reliability.

At FES Power, rigorous testing is an integral part of our product development process. Every major hardware revision and software optimization undergoes extensive validation before being released for customer applications. By recreating demanding operating environments in our laboratory, our engineers can identify optimization opportunities, verify product durability, and ensure that each solution performs reliably in real-world conditions.

As demand continues to grow for flexible EV charging solutions, mobile charging and energy storage systems are becoming increasingly important for emergency charging, fleet operations, temporary charging stations, construction sites, large-scale events, and areas with limited grid access. These applications require equipment that not only delivers high-performance charging but also maintains consistent operation under varying environmental and load conditions. Continuous reliability testing helps ensure that our products are prepared for these challenging scenarios.

Today’s successful 60kW dual-gun full-discharge test reflects FES Power’s ongoing commitment to engineering excellence, product quality, and continuous innovation. Through comprehensive validation and strict quality standards, we remain dedicated to delivering dependable EV charging solutions that meet the evolving needs of customers around the world. Our R&D team will continue to optimize system performance and accelerate the development of intelligent, reliable, and efficient charging technologies for the future of electric mobility.