High Voltage Leakage Test

The Advantage

  • Location of the smallest leakage
  • Test of cover seal line and bottom of the battery box
  • Side terminals battery contact (option)
  • Marking of leak point by local burning
  • RS232 to read out test data
  • Reject table for failed batteries
  • Fully automatic test process
  • Short change-over time
  • Adaptable to discharge test machine as combination unit

Core Features and Functionality

The High Voltage Leakage Battery Testing Machine is designed for high voltage controlling for leakage of batteries in a finishing line. The individual batteries supplied through the conveyor of the finishing line are positioned exactly. By especially digital electrical test device system, batteries will be controlled. Onto one of the battery terminals the positive electrode will be pressed. The negative electrode will be positioned round the sealing line of the battery cover to the battery box and on the bottom of the battery box. While testing a high voltage (max.12 kV) is fed. If there is an electric potential between the electrodes it indicates a leakage of the battery. By a special function, the leakage point can be shown by burning.

Products and services

Through close collaboration and a deep understanding of our customers’ needs, we deliver exactly what they expect: exceptional quality, intuitive usability, and tailored, personalized service. Our Premium Finishing Line Equipment is designed with cutting-edge technology to simplify operations and handling, ensuring a seamless experience. Engineered to exceed expectations, this high-tech solution is crafted to meet the highest standards and leave no detail overlooked.

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CMWTEC offers complete solutions for battery production—ranging from stand-alone machines and fully automated lines to advanced testing equipment and smart handling systems. Our modular approach enables flexible configurations and seamless integration into existing processes. With the DataManager software, we also provide digital tools for process control, traceability, and production data management. From assembly to end-of-line testing, CMWTEC delivers efficient technology for the entire battery production workflow.

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THE BATTERY FINISHING LINE EXPERT

Exact & Precise

Tailored to meet the high-quality standards of original equipment manufacturers, our machines
guarantee precision and reliability.

Years of experience

With years of experience, we craft machines that perform flawlessly, empowering you to focus on what matters most—your production.

Worldwide ambitious

Manufactured in Germany and delivered worldwide, we ensure punctuality and consistency in every project.

Contact Us

Please contact us if you are interested in a machine from our machine portfolio. Or contact us if the machine you are looking for is not described on our website. Our sales team and our engineers will be happy to help you with the design for your specific requirements.

Frequently asked questions

CMWTEC machines are proudly engineered and manufactured in Germany, symbolizing exceptional build quality, durability, and precision. With nearly 40 years of experience in mechanical engineering, CMWTEC ensures high-quality standards, punctual worldwide delivery, and consistent, reliable performance.

The modular architecture of the Premium Line offers maximum flexibility—each machine can operate as a standalone unit or integrate seamlessly into a full production line. This enables scalable automation, tailored configurations to meet evolving production demands, and future-ready adaptability. Integrated data acquisition supports processing transparency, quality control, and traceability.

Combination Machines merge multiple process steps into a single, compact system—such as brushing, testing, levelling, OCV evaluation, and marking—all controlled by a unified PLC and HMI interface. This modular, multifunctional design saves space, reduces handling time, and cuts costs. Quick change-overs and customizable configurations further increase efficiency and adaptability.