Button Cell Battery Insulator Rings from China
Plastic insulator rings that separate anode and cathode in silver oxide button primary batteries (e.g., SR44). These rings prevent internal short circuits in coin-shaped non-rechargeable cells, serving as integral safety parts of primary batteries.
Duty Rate — China → Canada
0%
Import Tips
• Confirm the rings are specifically shaped for primary battery assembly and not generic plastic washers
• Maintain clear documentation of the battery types they are designed for
• Check if the rings are subject to Canadian electrical safety regulations for battery components