As an experienced partner for quality assurance in battery manufacturing, JW Froehlich develops customized testing systems and automation solutions for both development and series production applications. Our portfolio covers leak testing and electrical testing throughout the entire battery value chain, ranging from individual battery cells and battery modules to complete battery packs. In addition, we provide tailored test applications for battery subcomponents such as Battery Management Systems (BMS), Battery Junction Boxes (BJB) and Onboard Chargers (OBC), ensuring functionality, quality and reliability at every stage of production.

For leak testing applications, JW Froehlich offers solutions for air leak testing using various measurement methods as well as tracer gas testing with helium or forming gas. Our electrical test systems support a wide range of inspection and validation tasks across the complete battery manufacturing process, including Open Circuit Voltage (OCV), AC Internal Resistance (ACIR) and Electrochemical Impedance Spectroscopy (EIS) measurements. These capabilities are complemented by dielectric strength and insulation resistance testing in accordance with ECE-R100 and LV123 standards, communication testing for BMS and Cell Monitoring Controller (CMC) systems, load and stress testing, and comprehensive end-of-line functional testing. This enables the reliable determination of key quality indicators such as State of Health (SoH) and State of Charge (SoC).

All testing systems can be realized as stand-alone manual workstations or as fully automated production solutions and are individually engineered to meet specific customer requirements. Beyond battery production itself, JW Froehlich also supports customers with innovative solutions for battery second-life applications and recycling processes. Our portfolio includes systems for battery health assessment, safe deep discharge, and the manual or fully automated disassembly of battery packs and modules, helping to enable sustainable battery lifecycle management.

With extensive expertise in testing technology, automation and process integration, JW Froehlich provides scalable solutions that contribute to higher product quality, increased process reliability and greater efficiency across the entire battery lifecycle.