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IEC 61951-1 Ed. 4.1 b:2023

Secondary cells and batteries containing alkaline or other non-acid electrolytes - Secondary sealed cells and batteries for portable applications - Part 1: Nickel-Cadmium
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IEC 61951-1 Ed. 4.1 b:2023

Secondary cells and batteries containing alkaline or other non-acid electrolytes - Secondary sealed cells and batteries for portable applications - Part 1: Nickel-Cadmium

PUBLISH DATE 2026
PAGES 168
IEC 61951-1 Ed. 4.1 b:2023
Secondary cells and batteries containing alkaline or other non-acid electrolytes - Secondary sealed cells and batteries for portable applications - Part 1: Nickel-cadmium
IEC 61951-1:2017+AMD1:2023 specifies marking, designation, dimensions, tests and requirements for secondary sealed nickel-cadmium small prismatic, cylindrical and button cells and batteries, suitable for use in any orientation, for portable applications.
This edition includes the following significant technical changes with respect to the previous edition:
- addition of battery type;
- revision of Figure 3 (6.1.3.1);
- addition of “Optional pip” note to positive contact;
- changed leader line position from pip to flats of positive contact (B and G).
SDO IEC: International Electrotechnical Commission
Document Number IEC 61951
Publication Date April 1, 2026
Language b - English & French
Page Count 168
Revision Level 4.1
Supercedes
Committee 21A
Publish Date Document Id Type View
April 1, 2026 IEC 61951-1 Ed. 4.1 b:2023 Revision
April 1, 2026 IEC 61951-1 Ed. 4.0 b:2017 Revision
Feb. 1, 2023 Revision
March 1, 2017 Revision