... hours 2.Duration period:5 years 3.No leakage&exploration 4.Safe&environmental friendly 5.No Hg,Cd,Pb 1, ... and regulations compliances.This product complies with IEC60086-1,60086-2 and 60086-5.This product complies with ... 20/EC).3,General3.1,Type: LR20(D,AM1)3.2,Chemical system: Zinc/KOH-H2O/MnO23.3,Nominal voltage: 1.5 V3 ... , 24h/d, 20°C, e.v=0.8V)3.7,Appearance: No tolerance of scratches, stains, cracks, ...