IEC 61808:1999

Foreword
      Introduction
1 General
      1.1 Scope
      1.2 Normative references
      1.3 Definitions
      1.4 Parameter measurement tolerances
2 Designation and Marking
      2.1 Cell designation
      2.2 Cell termination
      2.3 Marking
3 Dimensions
4 Electrical Tests
      4.1 Charging procedure for test purposes
      4.2 Discharge performance
      4.3 Charge (capacity) retention
      4.4 Endurance in cycles
      4.5 Charge acceptance at constant voltage
      4.6 Overcharge
      4.7 Safety device operation
      4.8 Storage
5 Mechanical Tests
6 Conditions for Approval and Acceptance
      6.1 Type approval
      6.2 Batch acceptance

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