8506.40.10.10 - Button and coin cell batteries

This HTS category, 8506.40.10.10, specifically covers button and coin cell batteries where the primary active material is silver oxide. These compact, disc-shaped batteries are characterized by their small size and are commonly used in low-drain, long-life applications such as watches, calculators, medical devices, and small electronic gadgets. The defining feature for classification within this sub-heading is the chemical composition of the cell, utilizing silver oxide as the cathode material.

Distinction from its sibling category, 8506.40.10.90, which covers "Other" silver oxide batteries, is based on the physical form factor and, implicitly, the intended application. While both fall under the umbrella of silver oxide batteries, this specific heading is reserved for the widely recognized "button" and "coin" cell formats. The "Other" category would encompass any silver oxide primary cells or batteries that do not conform to these specific physical characteristics, potentially including larger or less common designs.

As this is a leaf node in the HTS classification, there are no further subcategories. Classification decisions at this level will therefore hinge on confirming the battery's silver oxide chemistry and its adherence to the button or coin cell form factor, with an external volume not exceeding 300 cm³, as established by the preceding parent headings.