377 Silver Oxide Watch Battery from Germany
The 377 (SR626/377) silver oxide button battery powers quartz watches and instruments, with volume under 300 cm³. HTS 8506.40.1010 covers these primary non-rechargeable coin cells using silver oxide electrolyte. Known for low self-discharge and stable performance.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• Include certificates of analysis showing silver content >28% of cathode material per tariff definition
• Segregate from lithium batteries during transport; silver oxide cells have different UN numbers (UN3090 vs UN3480)
• Watch for anti-dumping duties on certain Asian silver oxide cells; check Commerce Department scopes