8506.40.10 - Having an external volume not exceeding 300 cm3

This HTS category, 8506.40.10, specifically covers primary silver oxide batteries that possess an external volume not exceeding 300 cubic centimeters. These batteries are characterized by their use of silver oxide as the cathode material, offering a stable voltage and high energy density, making them suitable for applications requiring long service life and consistent power. The volume limitation is a key distinguishing factor for classification within this subheading.

At this level, 8506.40.10 is distinguished from its sibling category, 8506.40.50, which encompasses "Other" silver oxide primary cells and batteries. While this node focuses on the smaller, more compact silver oxide batteries, the sibling category would include any silver oxide batteries not meeting the volume criteria, potentially larger industrial or specialized units.

Within 8506.40.10, further subclassification is provided to distinguish between different forms of these compact silver oxide batteries. The subcategories, 8506.40.10.10 for "Button and coin cell batteries" and 8506.40.10.90 for "Other," allow for a more granular classification based on the physical form factor and intended application of these small-volume silver oxide cells. This differentiation is important for trade data analysis and potential duty rate adjustments.