RW42 Mercuric Oxide 7.5V Battery Stack
> An RW42 stacked mercuric oxide battery providing 7.5V for specialized test equipment and vintage electronics. The multi-cell configuration maintains mercuric oxide chemistry, and the total volume is under 300 cm³. This product falls under tariff item 8506.30.00 as a mercuric oxide primary cell.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | 7% | — | 7% |
| 🇲🇽Mexico | 7% | — | 7% |
| 🇺🇸United States | 7% | — | 7% |
| 🇩🇪Germany | 7% | — | 7% |
| 🇯🇵Japan | 7% | — | 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.
If the battery stack uses manganese dioxide
Different chemistry changes the classification.
If the battery stack is rechargeable
Rechargeable accumulators are classified under heading 8507.
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 total volume is under 300 cm³, even though it is a stacked configuration
• Declare the mercury content accurately, as it may be subject to environmental regulations
• Provide a technical datasheet to confirm the mercuric oxide chemistry for CBSA
Related Products under Tariff item 8506.30.00
511 Mercuric Oxide Zinc-Air Equivalent Battery
> A compact mercuric oxide primary battery in the 511 size, designed for small calculators and toys. Its external volume is under 300 cm³, and it provides high capacity in a button cell format. This product falls under tariff item 8506.30.00 as a mercuric oxide primary cell.
Bulk Mercuric Oxide Micro Cells for Instruments
> An assortment of micro mercuric oxide cells (sizes 10mm-20mm diameter) for scientific instruments and medical devices. These primary cells provide long shelf life and stable output, and are classified under tariff item 8506.30.00. The assortment is a single consignment of mercuric oxide primary cells.
LR44 Mercuric Oxide Button Cell Battery
> A small round LR44 mercuric oxide button cell battery with an external volume under 300 cm³, used in watches, calculators, and small electronics. Its mercuric oxide chemistry and compact size place it under tariff item 8506.30.00.
PX13 Mercuric Oxide Hearing Aid Battery
> A PX13 mercuric oxide miniature battery designed for early hearing aids, with a volume not exceeding 300 cm³. It is a primary cell with mercuric oxide chemistry, historically used for low-voltage, long-life applications. This product is classified under tariff item 8506.30.00.
PX625 Mercuric Oxide Hearing Aid Battery
> A PX625 mercuric oxide battery designed specifically for hearing aids, offering high energy density and stable voltage. Its external volume is under 300 cm³, and it is a primary cell with mercuric oxide chemistry. This product falls under tariff item 8506.30.00.
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 delivers a stable 1.35V output and meets the criteria for a mercuric oxide primary cell. This product falls under tariff item 8506.30.00.