100-Piece 18650 & 21700 Battery Insulation Gasket Barley Paper Rings

Protect your battery packs with these durable battery insulation gaskets designed for 18650 and 21700 lithium-ion cells. Made from high-temperature barley paper, these insulating rings help cover the positive terminal edge to reduce the risk of accidental short circuits during battery assembly, repair, or rewrapping. With 100 pieces in each pack, they're an essential accessory for DIY battery pack builders, electronics hobbyists, and repair technicians. Barley paper (also called fish paper) insulation rings are commonly used on lithium-ion battery positive terminals to improve insulation and help prevent shorts.

Key Features

• 100-piece battery insulation gasket set for long-lasting use.
• Compatible with 18650 and 21700 lithium-ion battery cells (depending on the selected size).
• High-temperature barley paper provides reliable electrical insulation.
• Helps insulate the positive terminal during battery assembly and rewrapping.
• Self-adhesive design allows quick, secure installation.

Why Choose Our Battery Insulation Gaskets

Whether you're assembling custom battery packs or replacing worn insulation, these barley paper rings offer dependable protection where it matters most. Their heat-resistant material and precision-cut design help improve battery safety while making installation fast and hassle-free. Ideal for DIY projects, battery maintenance, and professional repair work.

Perfect For

• 18650 and 21700 battery pack assembly
• Battery rewrapping and repairs
• DIY electronics projects
• Power tool battery maintenance
• RC hobbyists and electronics technicians

Product Specs

• Quantity: 100 insulation rings
• Material: High-temperature barley paper (fish paper)
• Compatibility: 18650 or 21700 lithium-ion batteries (varies by option selected)
• Installation: Self-adhesive insulation pads

Build Safer Battery Packs with Confidence

Protect your lithium-ion batteries with reliable insulation designed for everyday assembly and repair. Order your 100-Piece 18650 & 21700 Battery Insulation Gasket Set today and keep your battery projects safe and professional.