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LR44 Mercuric Oxide Button Cell Battery

> An LR44 mercuric oxide button cell battery with an external volume under 300 cm³, used in watches, calculators, and small electronics. The mercuric oxide chemistry delivers a consistent 1.35V output, ideal for precision low-drain applications. This compact primary cell is correctly classified under tariff item 8506.30.00.

Import Duty Rates by Country of Origin

Origin CountryMFN TariffSurtaxesTotal Effective Rate
🇨🇳China7%—7%
🇲🇽Mexico7%—7%
🇺🇸United States7%—7%
🇩🇪Germany7%—7%
🇯🇵Japan7%—7%

More Specific Codes

This product may fall under a more specific subheading:

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

8506.80.10Lower: Free vs 7%

If the battery uses a different chemistry

Other primary cells with non-mercuric oxide chemistry are classified elsewhere.

8506.90.00Lower: Free vs 7%

If imported as battery parts

Separate classification applies to parts of primary cells.

Not sure which classification is right?

The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.

Import Tips & Compliance

• > Verify the cell's external volume does not exceed 300 cm³ to maintain classification under this item

• Be prepared to provide documentation on the mercuric oxide composition, as CBSA may require it for environmental compliance

• Check for any restrictions on mercury-containing products before shipping

Related Products under Tariff item 8506.30.00

511 Mercuric Oxide Zinc-Air Equivalent Battery

> A 511-size mercuric oxide primary battery, a compact button cell with an external volume under 300 cm³, designed for small calculators and toys. Its mercuric oxide chemistry provides a stable 1.35V output and long shelf life, making it suitable for low-drain devices. This product falls under tariff item 8506.30.00 as a mercuric oxide primary cell.

Bulk Mercuric Oxide Micro Cells for Instruments

> A bulk assortment of micro mercuric oxide cells, ranging from 10mm to 20mm in diameter, for scientific instruments and medical devices. These primary cells provide long shelf life and stable output, characteristic of mercuric oxide chemistry. This assortment is classified under tariff item 8506.30.00 as mercuric oxide primary cells.

PX13 Mercuric Oxide Hearing Aid Battery

> A PX13 mercuric oxide miniature battery designed for early hearing aids, with an external volume not exceeding 300 cm³. This primary cell offers low-voltage, long-life performance, characteristic of mercuric oxide chemistry. It falls under tariff item 8506.30.00 as a mercuric oxide primary battery.

PX625 Mercuric Oxide Hearing Aid Battery

> A PX625 mercuric oxide battery designed for hearing aids, offering high energy density and stable voltage for medical devices. With an external volume under 300 cm³, this primary cell is classified under tariff item 8506.30.00 as a mercuric oxide battery. It is distinct from other hearing aid batteries due to its chemistry.

PX625 Mercuric Oxide Watch Battery

> A PX625 mercuric oxide cylindrical battery used in vintage cameras and watches, with an external volume under 300 cm³. It provides a stable 1.35V output, essential for accurate operation of precision instruments. This primary cell is classified under tariff item 8506.30.00 due to its mercuric oxide chemistry.

PX76A Mercuric Oxide Photo Equipment Battery

> A PX76A mercuric oxide cell used in vintage light meters and photographic exposure meters, requiring precise voltage stability. With an external volume under 300 cm³, this primary cell is classified under tariff item 8506.30.00 as a mercuric oxide battery. Its stable 1.35V output is essential for accurate light measurement.