Tariff classification of power banks depends on essential character: energy storage as an electrical accumulator, not converter circuitry.

Tariff classification of a power bank turns on its essential character, not on ancillary circuitry. The AAAR analysed HSN notes and distinguished static converters from electrical accumulators, finding that a power bank's lithium-ion polymer battery, charge management circuitry and voltage boost converter work together to store electrical energy and discharge it when required. Because the decisive feature was energy storage, the presence of converting circuitry did not shift the product to Heading 8504. The product was therefore classified under Heading 8507 as an electrical accumulator, and the advance ruling to that effect was sustained.

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Issues: Whether a power bank is classifiable under Heading 8504 as a static converter or under Heading 8507 as an electrical accumulator.

Analysis: The tariff entries and HSN explanatory notes were examined to distinguish static converters from accumulators. Static converters are used to convert electrical energy for further use, while accumulators are characterised by reversible electrochemical action and storage of electrical energy. The power bank was found to consist of a lithium-ion polymer battery together with charge management circuitry and a voltage boost converter, all working together to store energy and discharge it when required. The presence of converter circuitry did not change the essential nature of the product, because the decisive feature remained storage of electrical energy. The technical opinion and cited precedents were found not to dislodge this classification, and the later GST rate notifications were treated as consistent with the same understanding of the product.

Conclusion: The power bank is classifiable under Heading 8507 as an electrical accumulator and not under Heading 8504 as a static converter.

Final Conclusion: The appeal failed and the advance ruling classifying the product under Heading 8507 was sustained.

Ratio Decidendi: For tariff classification, the presence of ancillary converting circuitry does not alter the classification of a product whose essential character is the storage and supply of electrical energy as an accumulator.

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