... : 20*3.2mm 4. Average Weight:2.2gApplication: watches, calculators, PC notebooks, electronic keys, card-type radios, IC cards, memory cards ... , medical equipment, and CMOS memory backup.etc Dimension:Other Models Models No.Nominal ... .5154CR2430322702430.21154.2CR2450326002450.21156.2Picture: 3V CR2032 button cell battery with pins and tabs