8506.80.00 - Other primary cells and primary batteries

This category, 8506.80, encompasses primary cells and primary batteries not specifically enumerated in other headings within Chapter 8506. Primary cells and batteries, by definition, are electrochemical devices that convert chemical energy into electrical energy and are not designed to be recharged. This includes a broad range of disposable power sources.

Unlike the sibling categories that specify the primary active materials such as manganese dioxide (8506.10), mercuric oxide (8506.30), silver oxide (8506.40), lithium (8506.50), and air-zinc (8506.60), this heading serves as a residual category for other chemistries or combinations thereof that do not fit into those more specific classifications. For instance, primary batteries utilizing alkaline-manganese, nickel-cadmium (in primary form), or various specialized chemistries would fall here if not otherwise provided for.

To further refine classification, this heading is subdivided. Subcategory 8506.80.00.10 covers button and coin cell batteries, which are typically small, flat, and cylindrical, commonly used in watches, calculators, and small electronic devices. The residual subcategory, 8506.80.00.90, captures all other primary cells and batteries that do not meet the specific characteristics of button or coin cells and are not classified under the more specific material-based sibling headings.