The electric vehicle (EV) market and its implied battery resource management are in large and fast expansion. The European Union is developing directives for digital product passport for batteries, where much understanding and knowledge of battery management are quickly growing. Coordinating standards that can harmonize circular battery management and spread best practices is therefore in high demand. This research presents a review of existing standards that support managing circular EV battery lifecycles. It was performed to understand the maturity of the circular battery lifecycle, regarding battery performance and safety to workers, EV passengers, and the environment. The review structure was made by positioning standards to key steps throughout the circular battery lifecycle, highlighting steps where handling, producing, testing, servicing, and remanufacturing could be expected to support harmonization and guidance. The scope was limited to mainly lithium-ion batteries for vehicle traction but also included general standards concerning recycling, safe battery handling, and environmental management. The resulting mapping summarizes a catalog of existing and upcoming standards. It shows that many important standards are available. Much still needs to be developed, especially with regard to tests for reused batteries’ health and performance and with regard to how to synchronize performance specifications along and across the circular life cycle stages. To the best of the authors’ knowledge, this study is the first attempt to provide such a comprehensive overview of standards that covers the whole circular electric vehicle battery lifecycles.