EVident Battery

EVident Battery, founded in 2023, is a technology company operating out of Westford, Massachusetts, that has developed a specialized inspection solution for the electric vehicle (EV) market. The company was co-founded by CEO Dr. Jinqiang Ning and CPO Wenbo Xiang. The idea originated from a conversation between the founders, who were classmates at Yale, about the difficulties and lack of transparency in the used EV market, particularly concerning battery health. Dr. Ning's background as a former lead reliability engineer at Tesla and Apple, combined with a Ph.D. in Mechanical Engineering from Georgia Tech, provides a deep technical foundation for the venture.

The core of EVident Battery's business is a hardware and software system designed to perform non-destructive and comprehensive diagnostics on EV battery packs. This technology utilizes a combination of vibration analysis, machine learning algorithms, and a robotic mobility system to conduct a full assessment in under two minutes. Unlike other inspection methods that may only focus on the battery's cells, EVident's solution examines the entire pack structure, including the thermal system, insulation, internal structures, and enclosure, to detect a wide range of potential failures. This approach addresses a critical gap in the market, as an EV battery pack can represent 30-40% of the vehicle's total value and non-cell-related failures are a significant cause of performance issues.

The company serves a diverse client base that includes EV manufacturers, dealerships, service shops, fleet management companies, and insurance providers. For manufacturers, the technology helps detect quality control issues early, while for the secondary market, it provides crucial transparency. The business model centers on offering these automated inspection services, which deliver a detailed report on the battery's health, its estimated remaining lifespan, and a calculated financial valuation. As the company conducts more inspections, it plans to monetize its growing proprietary dataset, offering insights for reliability improvements and insurance premium adjustments. In April 2025, EVident Battery announced it had secured $3.2 million in a seed funding round led by Ibex Investors, with participation from Nationwide Ventures, Automotive Ventures, and Avesta Fund, to expand its R&D, manufacturing, and business development teams.

Keywords: EV battery diagnostics, non-destructive inspection, automotive technology, machine learning, vibration analysis, battery health, robotic mobility, insurtech, fleet management, used EV market