8507.90.40.00 - Of lead-acid storage batteries

This HTS category, 8507.90.40.00, specifically covers parts and components designed for use with lead-acid storage batteries. This includes a wide range of items such as battery plates, separators, terminal posts, casings, lids, and other internal or external components that are integral to the construction and functioning of lead-acid batteries. The key criterion for classification under this heading is that the part must be intended for or designed to be used with a lead-acid battery.

Distinguishing this category from its sibling, 8507.90.80.00 (Other parts), is crucial. While "Other" encompasses parts for all types of electric storage batteries (including lithium-ion, nickel-cadmium, etc.), this specific subheading is exclusively for those parts originating from or intended for lead-acid batteries. Therefore, if a part is manufactured or designed to function within a lead-acid battery system, it falls here, even if similar parts might exist for other battery chemistries.

As a leaf node, this category does not have further subcategories. Its classification is determined by the direct attribution of the part to a lead-acid storage battery. Importers and exporters should carefully identify the type of battery each part is intended for. For example, distinct plate designs, specific grid materials, or unique separator compositions tailored for lead-acid chemistry would all fall under this classification.