UL 2743
Standard for Portable Power Packs

DETAILS
Edition Number:2SCC Approved:2018-06-22
Edition Date:2018-07-03DOD Approved: --
Price Code:BANSI Approved: 2018-07-02
Type:ulstd

  • SCOPE

    1 Scope

    1.1 These requirements cover portable and movable power packs provided with one or more batteries, electrochemical capacitors, or electrochemical capacitor modules. If provided with a battery, the battery shall be either a lead acid or lithium ion battery. The power packs are provided with one or more inputs and one or more outputs. For power packs provided with a booster function, the power packs are used for providing a temporary power source to a depleted land vehicle battery, rated 24 V dc maximum, to provide emergency starting power.

    1.2 These requirements cover power packs suitable for outdoor use, temporary outdoor use, or indoor use only. Outdoor use packs are intended to be used outdoors with no restrictions. Temporary outdoor use packs are intended to be used outdoors in limited wet conditions and always stored indoors. Indoor use only packs are intended to be stored indoors and used indoors and are not intended to be used outdoors at any time. A power pack with a booster function is not considered indoor use only under any conditions.

    1.3 These requirements cover power packs provided with additional systems such as an air compressor (tankless type) for inflating tires or other inflatable items, or with a light to act as warning lights to oncoming traffic, as a flashlight, or the like. These functions are also powered by the internal battery.

    1.4 These requirements cover the power pack options such as lights, voltmeters, internal air compressor assemblies, associated gauges, inverters, vehicle adapters, and internal batteries, as well as the charging of the internal batteries, when these options are integral to the power pack.

    1.5 These requirements do not cover wiring or cabling used in the recharging function of electric vehicle recharging equipment.

    1.6 These requirements do not cover power banks which are covered in the Outline of Investigation for Power Banks, UL 2056.

  • TABLE OF CONTENTS
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    • Cover
    • Transmittal
    • Table of Contents
    • UL Preface
      • Body
        • INTRODUCTION
          • 1 Scope
          • 2 Units of Measurement
          • 3 Components
          • 4 Referenced Publications
          • 5 Glossary
        • CONSTRUCTION
          • 6 General
          • 7 Frame and Enclosure
            • 7.1 General
            • 7.2 Metallic enclosures
            • 7.3 Nonmetallic enclosures
            • 7.4 Openings in enclosures
            • 7.5 Environmental considerations
          • 8 Flammability of Materials
          • 9 Assembly
          • 10 Corrosion Protection
          • 11 Supply Connections
            • 11.1 General
            • 11.2 Flexible cord connection
            • 11.3 External power supplies
            • 11.4 Vehicle adapters
            • 11.5 Photovoltaic panels
          • 12 Output Connections
            • 12.1 General
            • 12.2 Booster cable assemblies
            • 12.3 Receptacles
            • 12.4 DC output connectors and USB connectors
            • 12.5 Vehicle adapter sockets
          • 13 Grounding
            • 13.1 General
            • 13.2 Grounding identification
          • 14 Double Insulated Products
          • 15 Current Carrying Parts
          • 16 Internal Wiring
            • 16.1 Mechanical protection
            • 16.2 Wiring insulation
            • 16.3 Splices and connections
          • 17 Separation of Circuits
          • 18 Insulating Materials
          • 19 Compressors
            • 19.1 General
            • 19.2 Motors and thermal protection
            • 19.3 Parts subject to pressure
          • 20 Capacitors and Electrochemical Capacitor Modules
            • 20.1 Capacitors
            • 20.2 Electrochemical capacitor modules
          • 21 Resistors
          • 22 Lampholders
          • 23 Transformers
          • 24 Switches and Controls
          • 25 Printed-Wiring Boards
          • 26 Interlocks
          • 27 Overload Protection Devices
          • 28 Internal Battery
            • 28.1 General
            • 28.2 Lead acid batteries
            • 28.3 Lithium-ion batteries
          • 29 Spacings
          • 30 Inverters
          • 31 Charging Functions
        • PROTECTION AGAINST INJURY TO PERSONS
          • 32 General
          • 33 Back Feed Protection
          • 34 Sharp Edges
          • 35 Strength of Enclosure
          • 36 Attachments
          • 37 Stability
          • 38 Strength of Handles
          • 39 Surface Temperatures
          • 40 Safety Circuits and Control Circuits
        • PERFORMANCE
          • 41 General
          • 42 Power Input Test
          • 43 Normal Charging Operation Test
          • 44 Lithium Charging System Test
          • 45 Capacitor Discharge Test
          • 46 Leakage Current Test
          • 47 Normal Temperature Test
            • 47.1 General
            • 47.2 Maximum normal load
            • 47.3 Power pack ampacity temperature test
          • 48 Dielectric Voltage Withstand Test
          • 49 Leakage Current Following Humidity Conditioning
          • 50 Abnormal Operation Tests
            • 50.1 General
            • 50.2 Output short test
            • 50.3 Reverse polarity of booster cables
            • 50.4 Component faults
            • 50.5 Relay and solenoid burnout
            • 50.6 Printed-wiring board abnormal test
            • 50.7 Disconnected fan test
            • 50.8 Blocked ventilation test
            • 50.9 Overcharging test
            • 50.10 Internal battery reverse polarity test
          • 51 Vibration Test
          • 52 Ground Continuity
          • 53 Overload Tests
            • 53.1 General
            • 53.2 Overload of switches and controls test
            • 53.3 Overload of protection devices
            • 53.4 Overload of interlocks
          • 54 Strain Relief Test
            • 54.1 General
            • 54.2 Push-back strain relief test
          • 55 Strength of Enclosure Tests
            • 55.1 General
            • 55.2 Impact test
            • 55.3 Drop test
          • 56 Mold Stress Test
          • 57 Strength of Handles Test
          • 58 Stability Test
          • 59 Hydrostatic Strength Test
          • 60 Rain Test
          • 61 Tests on Insulating Materials
          • 62 Accelerated Aging of Gaskets, Sealing Compounds, and Adhesives Test
          • 63 Metallic Coating Thickness Test
          • 64 Permanency of Wrapped Hang Tag Marking
          • 65 Power Pack Ampacity Test
          • 66 Back Feed Test
          • 67 Cold Bend Test
          • 68 Clamp Tests
            • 68.1 General
            • 68.2 Cold drop test
            • 68.3 Dielectric voltage-withstand test
            • 68.4 Secureness test
        • MARKINGS
          • 69 General
          • 70 Cautionary Markings
        • INSTRUCTIONS
          • 71 General
          • 72 Instructions Pertaining to Risk of Fire, Electric Shock, or Injury to Persons
          • 73 Installation Instructions
          • 74 Operating Instructions
          • 75 User Maintenance Instructions
          • 76 Moving and Storage Instructions
    • Appendix A (INFORMATIVE)