SR44 Silver Oxide Button Cell Battery from Canada
The SR44 is a small silver oxide button cell battery with an external volume under 300 cm³, commonly used in watches and calculators. It falls under HTS 8506.40.1010 as a primary silver oxide button/coin cell battery not designed for recharge. Provides stable voltage output of 1.55V for low-drain devices.
Duty Rate — Canada → United States
12.7%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Verify battery volume does not exceed 300 cm³ and confirm silver oxide chemistry via material safety data sheets
• Include UN38.3 test reports for lithium-free primary cells; label with proper shipping names per DOT/IATA regulations
• Avoid misclassification as rechargeable cells (8507.60) which have different duty rates and testing requirements