PVC Heat Shrink Tubing for Battery | Insulation Protective Sleeve for 18650/21700/26650

Our PVC heat shrink battery sleeves are pre-cut 片状 PVC heat shrink films designed specifically for cylindrical batteries. Available in standard sizes to fit 26650, 21700, 18650, 5# (AA), and 7# (AAA) batteries, they provide a tight, seamless fit after heating. The material offers excellent insulation, waterproofing, and wear resistance, while its smooth, glossy surface enhances both protection and aesthetics. Whether for single battery cells or battery pack assembly, our heat shrink sleeves ensure safe, reliable, and professional results.

• Ultra-Fast Shrinkage
  Shrinks rapidly at 80°C, forming a tight, secure fit around battery cells without loosening. No need for high-temperature equipment, saving time and improving production efficiency.
• Superior Insulation & Safety
  Made of high-quality insulating PVC material with stable electrical properties. Effectively prevents short circuits, insulates against current leakage, and protects batteries from external damage.
• Waterproof & Dustproof
  Forms a complete, sealed protective layer, effectively blocking moisture, dust, and impurities. Extends battery service life and maintains stable performance in harsh environments.
• High Stability & Durability
  Operates within a wide temperature range of -40°C to 105°C, maintaining flexibility and strength. Resists wear, scratches, and aging, ensuring long-term reliable use.
• Vibrant & Attractive
  Available in bright, glossy colors (color options available upon request), providing both practical protection and an aesthetic finish to battery products.
• Complete Specifications
  Standard sizes pre-cut for 26650/21700/18650/5#/7# batteries. Custom sizes and lengths are also supported to meet special project requirements.

• Lithium Battery Packs: Insulation and protection for 18650/21700/26650 battery cells.
• Consumer Electronics: AA/AAA battery insulation and surface finishing.
• New Energy Equipment: Battery pack sealing, insulation, and anti-shock protection.
• Electronic Assembly: Battery module packaging, dustproofing, and wear resistance.

• Professional Manufacturer: Specialized in PVC heat shrink materials for batteries, with strict quality control.
• Fast & Efficient: 80°C low-temperature shrink, easy to operate, and improves production efficiency.
• Eco-Friendly & Safe: Compliant with international environmental standards, non-toxic, and safe for battery use.
• Custom Support: Accept custom sizes, colors, and lengths to meet your specific design needs.