|
A CR2032 battery is a button cell lithium battery rated at 3.0 volts. It is commonly used in computers as a CMOS battery, calculators, remote controls, scientific instruments, wireless doorbells, watches, and other small devices. Nominal diameter is 20 mm, nominal height is 3.2 mm. Review of 14 data sheets from different suppliers show a range of weights from 2.8 g to 3.9 g. CR2032 indicates a round cell 19.9.±0.1 mm diameter and 3.1±0.1 mm height as defined by the IEC standard 60086. Except for the two extreme outliers, all reported weights were between 3.0 g and 3.2 g, with the mode being 3.2 g. The BR2032 battery has the same dimensions, a slightly lower nominal voltage and capacity, and an extended temperature range compared with the CR2032. It is rated for a temperature range of –30 °C to 85 °C,〔http://na.industrial.panasonic.com/products/batteries/non-rechargeable-batteries/lithium-batteries/series/coin-type-br-series/CS535/model/BR2032 Specifications, retrieved 2015 June 10〕 while the CR2032 is specified over the range -20 °C to 70 °C.〔Specification for Lithium battery model CR2032. http://www.farnell.com/datasheets/1496885.pdf〕 BR2032 also has a much lower self-discharge rate. Using a BR2032 in place of a CR2032 will not damage equipment, and in most cases will function properly. Battery nomenclature is defined by the International Electrotechnical Commission (IEC) in its 60086 standard "Primary batteries". The first letter indicates the electrochemical system used: * C: (−) lithium electrode – organic electrolyte – manganese dioxide electrode (+) * B: (−) lithium electrode – organic electrolyte – carbon monofluoride electrode (+) The second letter ''R'' indicates a round (cylindrical) form. Manufacturers of batteries may have their own model numbers for cells interchangeable with the CR2032 and may identify their cell with both their own number and the IEC designation. == See also == * List of battery sizes 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「CR2032 battery」の詳細全文を読む スポンサード リンク
|