8507.90 - Parts:

This HTS category, 8507.90, encompasses parts for electric storage batteries, excluding those explicitly covered under the primary battery classifications. This means it includes components such as battery casings, separators, plates, terminals, and other internal or external parts that are not complete batteries themselves. The classification is concerned with the individual components that make up a storage battery, regardless of the specific battery chemistry.

Crucially, this category serves as a catch-all for battery parts that do not fall under the more specific sibling categories, which are dedicated to entire batteries such as lead-acid (8507.10, 8507.20), nickel-cadmium (8507.30), nickel-metal hydride (8507.50), and lithium-ion (8507.60) batteries. Therefore, if a part is for a lead-acid battery and can be classified under 8507.10 or 8507.20, it would not be classified here. This category is for the individual components when they are imported or exported separately from the complete battery unit.

To further refine classification, subcategories exist to distinguish parts based on the type of battery they are intended for. 8507.90.40.00 specifically covers parts originating from lead-acid storage batteries. The residual category, 8507.90.80.00, is for parts of other types of electric storage batteries not otherwise specified, providing a comprehensive structure for all battery components.