PVC Heat Shrink Tubing 220mm Flat Wrap for RC Battery Packs — LiPo, NiMH & NiCd

Measure the total length of your battery pack and add at least 10–15% extra to allow for overlap and shrinkage. For most RC battery packs, 1m (≈39.4") is sufficient for a single wrap. Choose 2m (≈78.7") or 3m (≈118.1") if you're wrapping multiple packs or need extra material for trimming. Generally, it's better to cut slightly longer than needed — excess can always be trimmed after shrinking.

This type of PVC heat shrink tubing typically has a 2:1 shrink ratio, meaning it shrinks to approximately half its original flat-wrap diameter when heat is applied evenly. The 220mm flat-wrap corresponds to an inner diameter of approximately 140mm (≈5.5") before shrinking. After shrinking, the tubing conforms tightly to the surface of the battery pack.

PVC heat shrink tubing generally provides a degree of moisture resistance once shrunk, making it suitable for light outdoor use and incidental splashes. However, it is not rated as fully waterproof or submersible. For RC boats or applications with prolonged water exposure, consider an adhesive-lined heat shrink tubing for a sealed finish.

The 220mm flat-wrap (Ø≈140mm inner diameter) is designed for large-format RC battery packs. It typically fits packs with a circumference of up to approximately 440mm (≈17.3"). This covers most multi-cell LiPo, NiMH, and NiCd packs used in 1/8-scale and larger RC cars, trucks, boats, and aircraft. If your pack is smaller, a narrower flat-wrap size may give a cleaner result.

A heat gun is the recommended tool for shrinking this tubing evenly. Keep the heat gun moving in a steady pass to avoid overheating any single area. In most cases, a temperature of around 90–120°C (194–248°F) is sufficient for PVC tubing. Avoid open flames — they can scorch, discolor, or unevenly shrink the material and may damage the battery cells underneath.

The Blue (0.2mm Wall Thick) variant features a confirmed thicker PVC wall compared to the standard Blue option. A thicker wall generally provides added abrasion resistance and a more rigid finished wrap, which can be beneficial for battery packs subject to vibration or rough handling — for example, in RC cars and trucks running on rough terrain. The standard Blue variant is lighter and may be preferred where weight savings matter.

Yes. This PVC heat shrink tubing is chemistry-agnostic — it wraps around the outside of the battery pack regardless of cell type. It is commonly used with LiPo, NiMH, and NiCd packs in RC cars, trucks, boats, and aircraft. Always ensure the battery pack is fully discharged and at room temperature before applying heat to avoid any risk during the wrapping process.

Yes — the Transparent variant allows you to see the cells and any labeling or markings on the pack through the tubing after shrinking. This is useful for identifying cell brands, checking for swelling, or maintaining a visible record of the pack's internal configuration without removing the wrap. Note that clarity may vary slightly depending on how evenly the tubing is shrunk.