8506.50.00.10 - Button and coin cell batteries

This classification, HTS 8506.50.00.10, specifically designates button and coin cell batteries that utilize lithium as their primary active material. These are characterized by their small, disc-like shape, designed for compact electronic devices. Their primary function is to provide a portable, self-contained source of electrical energy, distinguishing them from larger or differently shaped primary lithium batteries.

Within the broader category of primary lithium cells and batteries, this subheading differentiates itself from HTS 8506.50.00.90, which covers "other" primary lithium batteries. While both fall under the lithium battery umbrella, HTS 8506.50.00.10 is strictly for the button and coin cell form factors. Any primary lithium battery that is not a button or coin cell would be classified under the "other" subheading.

As this is a leaf node in the HTS structure, there are no further subcategories to explore under this specific code. Therefore, accurate classification hinges on definitively identifying the item as a primary lithium cell or battery and confirming its form factor is indeed that of a button or coin cell. This includes items such as watch batteries, calculator batteries, and small power sources for medical devices that fit this specific configuration.