PVC Heat Shrink Tubing for Battery Packs — Flat Width 130mm to 500mm

Measure the circumference of your battery pack, then divide by 2 to get the required flat width. For example, a pack with a 160mm circumference needs approximately 80mm flat width. Because PVC shrink tubing typically shrinks to about half its flat width, choose a size slightly larger than your calculated value to ensure a snug fit. When in doubt, size up — the tubing will still conform tightly once heat is applied.

This PVC heat shrink tubing generally has a 2:1 shrink ratio, meaning it shrinks to approximately half its original diameter when heat is applied. The recovered diameter is shown as the φ value in each size option (e.g., 130mm flat width recovers to approximately φ83mm). Always verify the φ value against your pack's outer diameter before ordering.

PVC heat shrink tubing typically activates at around 70–90°C (158–194°F). A heat gun on a low-to-medium setting works well. Move the heat gun steadily along the tubing to shrink evenly from one end to the other. Avoid open flames, as they can scorch or melt the material unevenly and may damage the battery cells underneath.

PVC heat shrink tubing provides basic moisture resistance and is generally suitable for indoor and light outdoor use. It is not a waterproof adhesive-lined tubing. For fully waterproof or submersible applications, consider dual-wall adhesive-lined heat shrink instead. For RC vehicles used in wet conditions, additional sealing at the ends is recommended.

Yes. This tubing is commonly used to wrap and protect LiPo, NiMH, NiCd, and other RC battery pack types. It provides insulation, abrasion resistance, and a clean finished appearance. Always confirm the recovered diameter (φ value) matches your pack's outer dimensions before ordering. It is not a substitute for proper cell-level insulation on bare cells.

Each listing provides 1 meter (≈39.4") of tubing. Most standard RC battery packs require between 100mm and 300mm of tubing length depending on cell count and configuration. One meter is generally sufficient for 3–6 packs depending on size. For larger or longer packs, consider ordering multiple units.

Available colors include Black, Blue, Transparent, Green, Silver-Gray, Red, White, Light Green, and Yellow. Color is purely aesthetic and does not affect electrical insulation or shrink performance. Transparent tubing allows you to see cell labels and markings after wrapping, which is useful for inspection and documentation purposes.

Yes. The tubing can be cut with standard scissors or a utility knife before or after shrinking. Cut to your required length, slide over the battery pack, and apply heat evenly for a clean, tight wrap. Cutting before shrinking is generally easier, especially for larger diameter sizes.