HS Code for Silver oxide battery

Silver oxide batteries are classified under HS code 8506.40 because they are primary (non-rechargeable) cells that utilize silver oxide as the positive electrode (cathode) and zinc as the negative electrode (anode) with an alkaline electrolyte. The Harmonized System organizes Chapter 85 to include electrical machinery and equipment, with heading 8506 specifically dedicated to primary cells and primary batteries. Subheading 8506.40 is reserved for those using silver oxide chemistry. These batteries are characterized by their high energy density and extremely stable discharge voltage, making them ideal for precision electronics. The classification is determined by the chemical composition of the active materials within the cell, regardless of the physical size or shape, although they are most commonly found in button or coin cell formats for small electronic devices.

Products Included

• Silver oxide button cells
• Silver oxide coin batteries
• SR-series batteries (e.g., SR44, SR626SW)
• Watch batteries using silver oxide chemistry
• Medical device batteries (primary silver oxide)

Common Misclassification

Silver oxide batteries are frequently confused with alkaline button cells (8506.10) or lithium button cells (8506.50). While they may look identical in size, the chemical system dictates the code. Additionally, they must not be confused with rechargeable silver-zinc batteries, which fall under 8507.80 as electric accumulators. It is critical to verify if the cell is primary (disposable) or secondary (rechargeable) before assigning the code.

FAQ

What is the HS code for silver oxide battery?

The specific HS code for silver oxide primary cells and batteries is 8506.40.

Are silver oxide batteries considered hazardous for shipping?

While the HS code 8506.40 identifies the product type, shipping regulations often classify them under UN3090 or similar categories depending on their lithium content or other chemical risks, though silver oxide cells are generally more stable than lithium counterparts.