UL 2575


Lithium Ion Battery Systems for Use in Electric Power Tool and Motor Operated, Heating and Lighting Appliances


1.1 These requirements address the safety of battery systems employing lithium ion cells that are intended for use in battery operated electric power tool and motor operated, heating and lighting appliance evaluations. The requirements cover both integral and detachable batteries but do not cover batteries or cells for general purpose use. -- 1.2 These requirements address the risk of fire or explosion of these batteries and not any possible hazards associated with toxicity or electric shock nor potential hazards associated with transportation or disposal. -- 1.3 Battery systems covered by these requirements are not intended to be serviced by the end user. -- 1.4 These requirements are structured so as to be used in conjunction with an end-product standard. These requirements are not intended to provide comprehensive evaluation of a battery independent of an end-product standard. -- 1.5 These requirements address the safety of lithium ion battery systems during storage and use including discharge and charge. These requirements are only considered to be supplementary requirements in regards to battery charger fire and electric shock. The safety of battery chargers for appliances are covered by other standards such as the Standard for Power Units Other Than Class 2, UL 1012, or the Standard for Class 2 Power Units, UL 1310. -- 1.6 These requirements refer to and require parameters supplied in reference to the cells that establish conditions for safe use of those cells. Those parameters form the basis of acceptance criteria for a number of tests contained herein. This standard does not independently cover the safety of cells. These parameters, taken as a set, constitute the "Specified Operating Region" for a cell. There may be several sets of specified operating region(s). -- 1.7 These requirements do not consider the effect of special applications (such as medical appliances) or special environments (such as hazardous locations). -- 1.8 These requirements have not assessed for the purposes of evaluating other end-product categories such as information technology equipment, telecommunications, laboratory equipment, fire alarm, security systems, emergency lighting, and audio-video apparatus, and may be incomplete with respect to those categories. -- 1.9 These requirements make frequent reference to the conditions and tests of the end-product standard while often also providing minimum conditions or severity of tests. These minimum conditions shall not be construed to imply equivalence to end-product requirements. Conditions or requirements of end-product standards shall prevail over the conditions or requirements of this standard, unless otherwise indicated in this standard.