SR521SW Coin Cell Battery from Canada
Ultra-thin SR521SW silver oxide coin cells (5.8mm x 2.1mm) power micro-electronics with <300 cm³ volume. Classified HTS 8506.40.1010 as primary button/coin silver oxide batteries. Ideal for glucose meters and hearing aids.
Duty Rate — Canada → United States
12.7%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Maintain temperature logs during shipping (<60°C) to preserve silver oxide electrolyte stability
• Use original manufacturer packaging to preserve anti-corrosion seals required for duty-free small package entries
• Separate declaration for silver content if exceeding de minimis for precious metal duties