UL 1989
Standard for Standby Batteries

DETAILS
Edition Number:5SCC Approved:--
Edition Date:2013-10-02DOD Approved: --
Price Code:AANSI Approved: 2018-11-09
Type:ulstd

  • SCOPE

    1 Scope

    1.1 These requirements cover valve regulated or vented batteries that can be used as instrument batteries, enclosed batteries, emergency lighting and power batteries and uninterruptible power supply batteries. A battery system composed of vented or valve regulated types with battery management controls and other battery system components, and other chemistries or battery types are covered by the Standard for Batteries for Use in Stationary, Vehicle Auxiliary Power and Light Electric Rail (LER) Applications, UL 1973.

    1.2 These requirements only address potential risks unique to the utilization of a battery supply in a product. Products employing a battery supply shall comply with the basic requirements contained in this standard applicable to the type of product and its intended use.

    1.3 These requirements are intended to address aqueous electrolyte valve regulated or vented batteries such as lead acid, nickel-metal hydride, nickel zinc, or nickel cadmium, etc., and do not cover risks that may be unique to certain cell chemistries, such as the fire and explosion risks of lithium batteries. Lithium batteries are outside the scope of this standard.

    1.4 The investigation of a family or group of batteries may be based on the investigation of batteries representative of the family or group.

  • TABLE OF CONTENTS
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    • Cover
    • Transmittal
    • Table of Contents
      • Body
        • INTRODUCTION
          • 1 Scope
          • 2 General
            • 2.1 Components
            • 2.2 Units of measurement
            • 2.3 Undated references
          • 3 Glossary
        • CONSTRUCTION
          • 4 General
        • PERFORMANCE
          • 5 General
        • EMERGENCY LIGHTING AND POWER BATTERIES
          • 6 Pressure Release Test
          • 7 Flame Arrester Vent Cap Tests
            • 7.1 General
            • 7.2 Conditioning
            • 7.3 Vent cap tests
            • 7.4 Back pressure test
            • 7.5 Test for sustained burning
            • 7.6 Test for flame propagation
          • 8 Capacity Rating Tests
        • UNINTERRUPTIBLE POWER SUPPLY BATTERIES
          • 9 Pressure Relief Valve and Vent Cap Tests
          • 10 Battery Enclosure Flammability Tests
        • INSTRUMENT AND ENCLOSED BATTERIES
          • 11 Overcharge and Discharge Test
            • 11.1 General
            • 11.2 Overcharge test
            • 11.3 Discharge test
          • 12 Battery Enclosure Tests
            • 12.1 General
            • 12.2 Drop impact test
            • 12.3 Ball impact test
            • 12.4 Crush test
            • 12.5 Rod pressure test
            • 12.6 High temperature conditioning test
        • MARKING
          • 13 General