Quick Details Place of Origin: Guangdong, China (Mainland) Brand Name: Perfecell Model Number: R20 Size D UM1 Battery Type: Zn/MnO2 Nominal Voltage: 1.5V Size: D Nominal Capacity: >350MIN, 3.9 Ohm continuous discharge, E.P.V.0.9V Chemical system: Zinc-manganese dioxide (Zn/MnO2) Technology Criterion: IEC60085-2:2007,2006/66/EC Certificate: SGS, ISO9001:2008,MSDS,SONCAP etc Short Circuit Current: >5A Continuous discharge: >350 MIN Jacket: PVC Quality: Excellent Diameter: 32.30-34.20 MM Height: 59.50-61.50 MM Mercury: