SN EN 61951-2 : 2003

1 Scope
2 Normative references
3 Definitions
4 Parameter measurement tolerances
5 Cell designation and marking
  5.1 Cell designation
       5.1.1 Small prismatic cells
       5.1.2 Cylindrical cells
       5.1.3 Button cells
  5.2 Cell termination
  5.3 Marking
       5.3.1 Small prismatic cells and cylindrical cells
       5.3.2 Button cells
6 Dimensions
  6.1 Small prismatic cells and cylindrical cells
       6.1.1 Small prismatic cells
       6.1.2 Cylindrical cells
  6.2 Button cells
7 Electrical tests
  7.1 Charging procedure for test purposes
  7.2 Discharge performance
       7.2.1 Discharge performance at 20 degree C
       7.2.2 Discharge performance at 0 degree C
       7.2.3 Discharge performance for rapid charge cells (R cells)
  7.3 Charge (capacity) retention
  7.4 Endurance
       7.4.1 Endurance in cycles
       7.4.2 Permanent charge endurance
  7.5 Charge acceptance at constant voltage
  7.6 Overcharge
       7.6.1 Small prismatic, L, M, H or X cylindrical, and
              button cells
       7.6.2 LT, MT or HT cylindrical cells
       7.6.3 R cylindrical cells
  7.7 Safety device operation
  7.8 Storage
  7.9 Charge acceptance at +55 degree C for LT, MT or HT
       cylindrical cells
  7.10 Internal resistance
       7.10.1 Measurement of the internal a.c. resistance
       7.10.2 Measurement of the internal d.c. resistance
8 Mechanical tests
9 Type approval and batch acceptance
  9.1 Batch approval
       9.1.1 Type approval for small prismatic cells and button cells
       9.1.2 Type approval for cylindrical cells
  9.2 Batch acceptance
Annex ZA (normative) Normative references to international
         publications with their corresponding European publications
Bibliography

Gives marking, designation, dimensions, tests and requirements for portable sealed nickel-metal hydride, small prismatic, cylindrical and button rechargeable single cells, suitable for use in any orientation.