8507.10.00.90 - Other

This HTS classification, 8507.10.00.90, specifically covers "Other" lead-acid storage batteries used for starting piston engines. This includes a broad range of these batteries that do not fit into more specific sub-classifications. The core characteristic is that they are lead-acid based, designed to provide the initial power surge to start internal combustion engines, commonly found in vehicles and other machinery.

The distinction between this "Other" category and potential sibling categories lies in the specificity of the classification. For example, if a sibling category existed for "12V batteries" (as indicated in the sibling list), this category would encompass lead-acid batteries for starting piston engines that are *not* exclusively 12V, or it would cover any 12V lead-acid starting batteries that meet the general criteria but aren't otherwise specifically enumerated. The key here is the "lead-acid" composition and the primary function of engine starting.

As this node is a leaf node, there are no further subcategories. Therefore, classification into 8507.10.00.90 relies on meeting the general criteria of being a lead-acid storage battery intended for starting piston engines and not falling under any more precisely defined HTS subheadings within the broader category of lead-acid batteries. Practical classification considerations would involve examining the battery's design, electrolyte type (sulfuric acid and lead plates), voltage, ampere-hour capacity, and its intended application for engine ignition.