WG 4 - TC 21/SC 21A/WG 4

The contents of the corrigendum of December 2021 have been included in this copy.

IEC 62133-1:2017 specifies requirements and tests for the safe operation of portable sealed secondary nickel cells and batteries containing alkaline electrolyte, under intended use and reasonably foreseeable misuse.
This first edition cancels and replaces the second edition of IEC 62133 published in 2012. It constitutes a technical revision.
This edition includes the following significant technical changes with respect to IEC 62133:2012:
- separation of lithium systems into a separate Part 2;
- inclusion of button cell requirements.

IEC 62133-2:2017 specifies requirements and tests for the safe operation of portable sealed secondary lithium cells and batteries containing non-acid electrolyte, under intended use and reasonably foreseeable misuse.
This first edition cancels and replaces the second edition of IEC 62133 published in 2012. It constitutes a technical revision.
This edition includes the following significant technical changes with respect to IEC 62133:2012:
- separation of nickel systems into a separate Part 1;
- inclusion of coin cell requirements;
- update of assembly of cells into batteries (5.6);
- mechanical tests [vibration, shock] (7.3.8.1, 7.3.8.2);
- insertion of IEC TR 62914 within the Bibliography.

IEC 62133:2012 is available as IEC 62133:2012 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 62133:2012 specifies requirements and tests for the safe operation of portable sealed secondary cells and batteries (other than button) containing alkaline or other non-acid electrolyte, under intended use and reasonably foreseeable misuse. This edition includes the following significant technical changes with respect to the previous edition:
- update of assembly of cells into batteries (5.5);
- addition of design recommendations for lithium system only (5.6.2);
- separation of nickel systems and lithium systems (Clause 6);
- addition of specific requirements and tests for lithium systems (Clause 8);
- addition of charging of secondary lithium-ion cells for safe use (Annex A). The contents of the corrigendum of June 2013 have been included in this copy.