PN: CR1620 3VNOMINAL VOLTAGE: 3VNOMINAL CAPACITY (MAH)*1: 80NOMINAL DISCHARGE CURRENT (MA): 0.1OPERATING TEMPERATURE RANGE (DEG. C)*2: -20 TO +85DIAMETER (MM): 16.0MMHEIGHT (MM): 2.0MMWEIGHT (G)*3: 1.3GCHEMICAL SYSTEM: LITHIUM MANGANESE DIOXIDE