This product is designed for secure mounting of assembled coin cells during electrochemical testing, enabling reliable and reproducible measurements such as EIS and CV. Developed for researchers working with button-type batteries, the fixture accommodates standard 20 and 24 series cell formats, with corresponding models available for each. Its construction ensures stable electrical contact and minimizes measurement interference, making it suitable for routine laboratory characterization of battery materials and electrode performance. An optional large alligator clip accessory supports flexible wiring configurations. As a practical tool for precise, low-resistance connections, this fixture serves as an essential component in testing workflows for energy storage research and quality assessment.