Dustproof 18650 PVC Heat Shrink Film 72mm×30mm – Battery Insulation & Short-Circuit Prevention

When assembling 18650 lithium batteries, reliable insulation is the first line of defense against short circuits, moisture damage, and safety hazards. Our 18650 PVC Heat Shrink Film (72mm x 30mm) is tailored to solve the pain points of ill-fitting or low-quality shrink wraps: it offers precise dimension matching, fast and uniform shrinking, and long-lasting insulation protection—making it ideal for both individual battery cell insulation and small battery pack wrapping. Crafted from high-grade PVC material, it balances flexibility, heat resistance, and cost-effectiveness, ensuring your 18650 batteries stay safe and functional in every application.

This 18650 PVC heat shrink film is widely used in scenarios where 18650 battery insulation and protection are critical:

• Consumer Electronics: Insulating individual 18650 cells for power banks, portable chargers, wireless speakers, and laptop batteries—prevents short circuits from metal contact.
• Lighting Devices: Wrapping 18650 cells in flashlights, headlamps, and LED work lights—blocks dust and moisture, ensuring stable performance in outdoor use.
• Small Energy Storage: Insulating cells in mini solar power banks, backup batteries for routers, and IoT device batteries—protects against environmental factors.
• DIY Battery Projects: Ideal for hobbyists assembling 18650 packs for RC cars, drones (small-scale), and home electronics—easy to use with standard heat guns.
• Industrial Auxiliary: Insulating 18650 cells in handheld medical devices, sensors, and portable meters—meets basic insulation safety standards for industrial use.

1. Cut to Size: If using roll form, cut the film into 30mm lengths (or your desired size) using a utility knife or film cutter.
2. Cover the Battery: Slide the 18650 cell into the 72mm×30mm film, ensuring the entire cell (except the positive/negative terminals if needed) is covered.
3. Apply Heat: Use a heat gun (set to 100℃–120℃) or shrink tunnel to apply uniform heat to the film. Move the heat source back and forth to avoid overheating— the film will shrink tightly around the battery in 5–10 seconds.
4. Cool & Inspect: Let the battery cool for 10–15 seconds, then check for wrinkles or loose areas (reapply heat if necessary).

• Quality Testing: Each batch undergoes shrinkage rate, insulation resistance, and tear strength tests—test reports provided free for bulk orders.
• Certifications: Compliant with RoHS and REACH standards—safe for consumer and industrial electronics.
• MOQ & Lead Time: Standard clear film: MOQ 10 rolls (100m/roll), ships in 2–3 days; Custom colors/sizes: MOQ 500m, delivers in 5–7 days.
• After-Sales: Free sample roll (1m) for testing; 3-month warranty for quality issues (e.g., uneven shrinkage, poor insulation).

Need help confirming if this film fits your 18650 battery model or want to customize dimensions? Send us your battery specs—our team will provide a free compatibility check. Contact us today for a detailed quote!