Sony SR44 Silver Oxide Watch Battery from Canada
Sony SR44 silver oxide batteries are compact primary cells (volume <300 cm³) designed for precision timepieces and medical devices. Classified under HTS 8506.40.10 for their silver oxide composition and small external volume. These provide stable voltage for low-drain applications.
Duty Rate — Canada → United States
12.7%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Label batteries clearly with chemistry type (silver oxide) and capacity to prevent reclassification during customs exam
• Package in child-resistant blister packs if marketed for consumer sale to meet CPSC requirements
• Confirm non-rechargeable status; rechargeable silver-zinc cells would classify differently under 8507