IEEE 3365-2025

This guide provides an approach for testing and evaluation of on-board lithium propulsion batteries in electric vehicles (EVs) during routine charging and discharging process. It includes guidance for test conditions, procedures, and evaluation of results.

With increasing EV use, the demand for rapid testing and evaluation of battery status without disassembling the batteries is emerging as an urgent issue. This guide specifies a performance index that includes the information that EV owners are concerned about, simplifies testing procedures, and provides objective, third-party evaluation results. It helps users evaluate the performance of on-board batteries and discover the batteries’ potential safety risks as well.

New IEEE Standard - Active. As the sales of electric vehicles (EV) continue to increase and their service life extends, lithium-ion batteries, the core components of EVs, face challenges in terms of performance degradation and safety. Therefore, regular inspection of the battery state is crucial. Traditional battery testing methods involve dismantling the battery pack, which is time-consuming, costly, and requires harsh testing conditions. Furthermore, since EV users are unable to obtain battery data and monitor its health status during daily use, this leads to concerns about vehicle safety and range anxiety. A performance index is specified that includes the information that EV users are concerned about, simplified testing procedures, and objective, third-party evaluation results. User evaluation of onboard battery performance and potential safety risks is assisted by this guide.