WG 2 - TC 21/SC 21A/WG 2

IEC 61951-1:2017 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).

IEC 61951-2:2017 specifies marking, designation, dimensions, tests and requirements for secondary sealed nickel-metal hydride 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;
- addition of ‘F’ (high recovery type) designation for cells and batteries;
- addition of ‘I’ (low self-discharge type) designation for cells;
- 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).

IEC 61951-1:2013 specifies marking, designation, dimensions, tests and requirements for portable sealed nickel-cadmium small prismatic, cylindrical and button rechargeable single cells, suitable for use in any orientation. This third edition cancels and replaces the second edition (2003) and its amendment 1 (2005) of which it constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- addition of several new cell sizes;
- introduction of a new cell type J;
- creation of Annex A (informative): Capacity of batteries measurement.

This International standard specifies tests and requirements for verifying the mechanical behaviour of sealed portable secondary cells and batteries during handling and normal use

This technical report identifies and recommends procedures to ensure that batteries for portable equipment are designed, manufactured and marketed according to good practice. Written to assist manufacturers of such batteries, (including designers and assemblers), it draws attention to design factors which should be included in a battery design and recommendations on how to get good electrical and life performance from batteries.

Specifies tests and requirements for sealed nickel-cadmium rechargeable monobloc batteries in button cell design, suitable for use in any orientation. The contents of the corrigendum of March 1992 have been included in this copy.

Specifies tests and requirements for sealed nickel-metal hydride button rechargeable single cells, suitable for use in any orientation.

Specifies tests and requirements for sealed nickel-cadmium cylindrical rechargeable single cells, suitable for use in any orientation. Specific tests and requirements for cells intended for use in permanent charge at elevated temperatures are also included. The contents of the corrigendum of August 1993 have been included in this copy.

Specifies tests and requirements for sealed nickel-metal hydride rechargeable single cells, suitable for use in any orientation.

Specifies marking, designation, dimensions, tests and requirements for sealed nickel-cadmium small prismatic rechargeable single cells, suitable for use in any orientation.