A123 Systems is a global leader in battery technology, known for its innovative advancements and high-performance solutions. We hold a global patent for super nano lithium iron phosphate technology, which is unparalleled in safety, power, and longevity, and dominates the market in 12V start-stop and 48V low-voltage batteries. Our R&D centers and laboratories are located in the United States, Europe and China with a team of over 1,000 experts. We have invested over $700 million USD in R&D. Our diverse product portfolio includes lithium iron phosphate, ternary, and solid-state technologies, serving applications from automotive to energy storage systems, solidifying our position as a leader in advanced energy solutions.
4a Engineering GmbH
4a engineering GmbH, based in Traboch, Austria, specializes, among others, in battery abuse testing services and the development of advanced battery abuse test equipment. The company designs and manufactures state-of-the-art testing systems, including pressure-tight thermal runaway chambers for electro-thermal-mechanical testing of cells, modules, and small packs, as well as mechanical testing systems for characterizing battery cells. With extensive expertise in battery safety, abuse simulation, and custom testing solutions, 4a engineering supports the development and validation of next-generation battery technologies. Exhibiting at the Battery Show Europe 2026 in Stuttgart, 4a engineering is a trusted partner for tailored testing solutions and cutting-edge equipment to ensure battery performance and safety. Whether you need precision test systems or expert services for battery safety testing, 4a engineering delivers excellence in every project. Keywords: battery abuse testing, thermal runaway chambers, mechanical testing systems, battery safety testing, battery simulation, test equipment.