PVC Heat Shrink Tubing for RC Battery Packs — 85mm to 145mm, LiPo NiMH NiCd, Choose Size, Length & Color

Measure the circumference of your battery pack and divide by π (3.14) to get the flat width you need. For example, a pack with a 267mm circumference needs approximately 85mm flat-width tubing. When in doubt, size up — the tubing will conform tightly once heat is applied. Common conversions: 85mm ≈ 3.35", 110mm ≈ 4.33", 145mm ≈ 5.71".

This PVC heat shrink tubing is compatible with LiPo (Lithium Polymer), NiMH (Nickel-Metal Hydride), and NiCd (Nickel-Cadmium) RC battery packs. It is generally suitable for any cylindrical or prismatic battery pack that falls within the 85mm–145mm flat-width range, including custom DIY cell assemblies.

This tubing has a 2:1 shrink ratio, meaning it shrinks to approximately half its original flat width when heat is applied. For example, 110mm tubing will shrink down to roughly 55mm flat width. This provides a firm, snug wrap around most standard RC battery pack profiles without excess material bunching at the edges.

PVC heat shrink tubing of this type generally activates at 70–90°C (158–194°F). A heat gun set to low or medium is the recommended tool — move it steadily along the length of the pack to shrink evenly. Avoid open flames or holding the heat gun in one spot, as uneven heat can cause bubbling or distortion.

PVC heat shrink tubing provides a moisture-resistant barrier that is generally adequate for typical outdoor RC hobby use, including bashing, crawling, and racing in light rain or damp conditions. It is not rated for full waterproof submersion. For extreme wet environments, consider sealing the open ends of the tubing with electrical tape or heat-shrink end caps.

A 1m roll typically covers 2–4 standard RC battery packs and is ideal for a one-time repair or rebuild. The 5m roll suits hobbyists who rebuild packs regularly or maintain multiple vehicles. The 10m roll offers the best per-meter value for workshop use, club builders, or anyone wrapping large quantities of packs at once.

Yes — replacing a torn, punctured, or peeling battery wrap is one of the most common uses for this tubing. Remove the old wrap completely, slide the new tubing over the pack, center it, and apply heat evenly for a clean, factory-style finish. This is a cost-effective way to restore a battery pack rather than replacing it entirely.

Color availability varies by diameter. Larger diameters (such as 123mm and 145mm) have fewer color options, while mid-range sizes like 85mm and 110mm offer the widest selection. Select your diameter first in the variant picker — the available colors will update automatically. If your preferred color is not listed for a given size, contact us and we can advise on alternatives or upcoming stock.