These requirements cover portable power packs provided with an internal lead acid or lithium ion battery. The power packs are provided with one or more inputs as shown in 1.2; and they are provided with one or more outputs as shown in 1.3. These devices are intended for an external connection to a source of supply rated a maximum of 240 V ac@ 60 Hz while charging the internal battery. When not charging the internal battery@ these devices are not intended to be connected to the source of supply. 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 12 or 24 V@ to provide emergency starting power. Power packs shall be provided with a cord and plug connection option as shown in item (a) as a minimum@ but may be provided with additional input options as shown in (b) or (c): a) Cord and plug connection@ rated at 240 V ac maximum; b) Photovoltaic panel or device with inverter; or c) Vehicle cigar adapter@ rated 12 V dc maximum. For power packs with no recharging function for the external battery@ the input is used to recharge the internal battery only. No power is delivered directly to an output. The power packs are not intended to be used while connected to the source of supply. For power packs with a recharging function for the external battery@ the input is controlled such that only the output for recharging is allowed to be directly supplied by the input. Power packs covered by this outline shall be provided with one or more of the following outputs@ with the exception that one of the outputs in items (a) ?C (c) are provided as a minimum: a) Booster cables to provide a temporary power source to a depleted land vehicle battery@ rated 12 or 24 V@ to provide emergency starting power; b) One or more receptacles rated no more than 125 V ac@ 15 A; c) DC output connectors rated 24 V dc maximum; or d) Standard USB port outputs. All outputs are powered from the internal battery and are not intended to be powered directly by an input connection. With reference to 1.3@ power packs may also be 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. These requirements cover the power pack options such as lights@ voltmeters@ air compressor assemblies@ associated gauges@ inverters@ cigar lighter adapters@ and internal batteries@ as well as the charging of the internal batteries@ when these options are integral to the power pack. These requirements do not cover wiring or cabling used in the recharging function of electric vehicle recharging equipment.
UL SUBJECT 2743-2014 history
2016UL SUBJECT 2743-2016 UL Outline for Investigation Portable Power Packs (Issue 4)
2015UL SUBJECT 2743-2015 UL Outline for Investigation Portable Power Packs (Issue 3)
2014UL SUBJECT 2743-2014 UL Outline of Investigation for Portable Power Packs (Issue 2)