18650 Insulator Rings – 550pcs Adhesive

Product: 550‑pc 18650 Adhesive Fish Paper Insulator Rings

These precision-cut adhesive fish paper insulator rings are designed to fit most standard 18650 lithium-ion battery cells. Used for electrically isolating the positive terminal, they help prevent shorts and improve build reliability.

• Quantity: 550 pieces
• Material: Fish Paper (with adhesive backing)
• Outer Diameter: ~17.8 mm
• Inner Diameter: ~10.5 mm
• Thickness: ~0.2 mm

These rings are ideal for DIY battery pack builders, e-bike repairs, flashlight enthusiasts, and other custom lithium battery applications.

Each ring includes a peel-and-stick adhesive side for quick and easy application.

Note: Always verify compatibility with your specific 18650 cells before use. This item is intended for experienced builders and electronics enthusiasts.