Zinc-Air Primary Button Cell from Canada
Air-activated zinc-air primary button cell for hearing aids and medical devices. Even though button-shaped, zinc-air chemistry places it in HTS 8506.80.00 as other primary cells, excluding lithium and mercuric oxide buttons. Oxygen from air serves as cathode during use.
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
• Sealed until activation; special humidity-controlled shipping
• Medical device registration if hearing aid labeled
• Short shelf life post-activation (weeks)