PN: CR2032NOMINAL VOLTAGE: 3VNOMINAL CAPACITY (MAH)1: 220NOMINAL DISCHARGE CURRENT (MA): 0.2OPERATING TEMPERATURE RANGE (DEG. C) 2: -20 TO +85DIAMETER (MM): 20.0MMHEIGHT (MM): 3.2MMWEIGHT (G) 3: 3.0GCHEMICAL SYSTEM: LITHIUM MANGANESE DIOXIDE