IEC 62133-2:2017/AMD1:2021/COR1:2021 is a supporting modification to the parent document IEC 62133-2:2017, addressing the safety requirements for portable sealed secondary cells and batteries made from them for use in portable applications. As a corrigendum and amendment package, it is relevant for teams that need to work from the most current technical reference during product evaluation, conformity assessment, and compliance preparation. It helps align engineering documentation and testing workflows with the corrected and updated requirements for lithium systems.

Purpose of IEC 62133-2:2017/AMD1:2021/COR1:2021

The purpose of IEC 62133-2:2017/AMD1:2021/COR1:2021 is to modify and clarify the parent safety requirements for portable sealed secondary cells and batteries using lithium systems. In practice, it supports technical review by identifying the current requirements that laboratories, manufacturers, and certification teams should apply when assessing battery safety. Because it is a derivative document, it is typically used together with the base publication to maintain operational consistency in verification activities, documented evaluation, and regulatory preparation.

Compliance applications of IEC 62133-2:2017/AMD1:2021/COR1:2021

This reference is commonly used in battery design review, product qualification, and test planning for portable electronic equipment that relies on lithium secondary cells or assembled batteries. It may be consulted by compliance teams, test laboratories, and procurement functions when checking which requirements apply to a specific product file or certification package. IEC 62133-2:2017/AMD1:2021/COR1:2021 is especially useful where a project needs traceable alignment between the parent document, the latest corrections, and the evidence gathered during product evaluation.

Benefits of IEC 62133-2:2017/AMD1:2021/COR1:2021

Using IEC 62133-2:2017/AMD1:2021/COR1:2021 helps reduce ambiguity in safety-related documentation and supports more consistent testing workflows. For engineering and quality teams, it provides a clearer basis for technical validation, risk management, and conformity assessment preparation. For procurement and compliance stakeholders, it can improve confidence that the correct version of the underlying requirements is being referenced in specifications, supplier documentation, and certification records. It is therefore valuable where accurate, up-to-date compliance references are part of routine quality assurance.

• Supporting document for the parent safety requirements in IEC 62133-2:2017
• Relevant to portable sealed secondary cells and lithium battery assemblies
• Useful for test planning, technical review, and certification file maintenance
• Helps maintain alignment between engineering documentation and current compliance references
• Supports safer and more consistent conformity assessment workflows