Specification: Max Dimension of CR123A: 17.0x33.5mm; Nominal capacity of CR123A: 1300mAh ( 10mA/ 2.0V) ; Nominal voltage of CR123A: 3.0V; Max constant discharge current of CR123A: 1000mA; Max pulse current of CR123A: 2500mA; Operating temperature range of CR123A: -30 ^ + 60 Primary Lithium Battery Type CR123A has the advantages of high energy density, high open circuit voltage, wide range of operating temperature, stable operating voltage and current ( over 90% of the total capacity is discharged at a high plateau voltage) , long operating time ( over 8 years) for continuous low current discharge with medium current pulse and low self-discharge rate ( less than 1% per year) . Its main applications are PHOTO CAMERA.