SR41 Silver Oxide Button Cell

SR41 button cells (7.9mm x 3.6mm) are silver oxide primary batteries for precision devices, volume well under 300 cm³. HTS 8506.40.1010 applies to these flat coin-style non-rechargeable cells. Used in medical timers and photo meters.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China2.7%+35.0%37.7%
🇲🇽Mexico2.7%+10.0%12.7%
🇨🇦Canada2.7%+10.0%12.7%
🇩🇪Germany2.7%+10.0%12.7%
🇯🇵Japan2.7%+10.0%12.7%

Alternative Classifications

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

8506.40Same rate: 37.7%

If larger capacity silver oxide cells

Volume >300 cm³ silver oxide primaries get different statistical breakouts within same heading.

8517.62.00Lower: 32.5% vs 37.7%

If built into communication devices

Batteries integral to telecom apparatus follow machine classification under 8517.

8501.10.40Higher: 39.4% vs 37.7%

If considered electric accumulator

True secondary/rechargeable cells go to 8501-8502; silver oxide primaries cannot be recharged.

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

Test for open-circuit voltage >1.55V to confirm fresh primary cells vs spent (8549.11 classification)

Label with 'Primary Battery - Do Not Recharge' to prevent consumer misuse and support classification

For EU imports, comply with Battery Directive marking requirements even for US market entry