HTS code 9902.16.22 covers "Lithium thionyl chloride batteries, cylindrical in shape, measuring 30.48 mm or more but not over 152.4 cm in length, having an outer diameter of 10.16 mm or more but not over 127 mm, each certified by the importer as containing a lithium anode and a liquid cathode comprising a porous carbon current collector filled with thionyl chloride (SOCl2) (provided for in subheading 8507.60.00)" under the US Harmonized Tariff Schedule. This is the official duty rate charged by US Customs when this product is imported into the United States, sourced directly from the U.S. International Trade Commission and refreshed daily.