Depleted Zinc-Mercury Button Cell Batteries
Tiny spent mercury oxide button cells from watches and calculators, exhausted and containing mercury-zinc chemistry. Falls under 8549.12.8000 as non-rechargeable primary cells with mercury.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If new or unused button cells
Mercantile primary cells (functional) go to live battery subheadings
If recovered from jewelry/watches as assemblies
Watch/battery assemblies may classify under Chapter 71 precious metal waste
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Import Tips & Compliance
• Quantify total mercury mass for declarations; use secondary containment packaging; common error is classifying as new under 8506.10
Related Products under HTS 8549.12.80.00
Spent Lead-Acid Car Batteries
Used automotive lead-acid batteries that are no longer usable due to wear and sulfation, containing lead electrodes and sulfuric acid electrolyte. Classified under HTS 8549.12.8000 as spent primary cells or batteries containing lead, neither rechargeable nor functional as power sources.
Used Sealed Lead-Acid UPS Batteries
Depleted valve-regulated lead-acid (VRLA) batteries from uninterruptible power supplies, worn out from cycle fatigue and containing lead plates. Falls under 8549.12.8000 as spent electric accumulators with lead, incapable of recharging due to internal degradation.
Discarded Alkaline Batteries with Mercury
Worn-out household alkaline batteries containing trace mercury in the cathode material, no longer capable of powering devices due to electrolyte depletion. HTS 8549.12.8000 applies to spent primary cells with mercury that cannot be recharged.
Spent Nickel-Cadmium Rechargeable Batteries
Exhausted NiCd battery packs from power tools, with cadmium anode degraded beyond rechargeability due to dendrite formation. Classified in 8549.12.8000 as spent electric accumulators containing cadmium.
Worn-Out Emergency Lighting Lead Batteries
Failed lead-acid batteries from exit signs and emergency lights, sulfated and non-functional after years of standby drain. HTS 8549.12.8000 for spent accumulators containing lead.
Failed Solar Panel Lead-Acid Batteries
Deep-cycle lead-acid batteries from off-grid solar systems, capacity reduced to zero from over-discharge and plate shedding. HTS 8549.12.8000 as spent lead-containing accumulators.