METAL JACKET NORMAL VOLTAGE:1.5V SHELF LIFE:12 MONTH DISCHARGE TIME:300min DIAMETER:32.3-34.2mmOVERVALL HEIGHT:59.5-61.5mmPACKING:1)2PC/SHRINK,1DOZ/INNER BOX,20DOZ/CTN, G.W.21.5KG/CTN, N.W.20KG/CTN, CTN SIZE:29X23.5X33CM W&S BATT Brand R20 carbon Battery