PVC Heat Shrink Tubing for RC Battery Packs — Secure, Insulate, and Identify
Rebuilding a battery pack or rewrapping a worn LiPo, NiMH, or NiCd cell group is frustrating when you can't find tubing wide enough to fit. This wide-format PVC heat shrink tubing is designed specifically for RC hobbyists, battery builders, and electronics technicians who need reliable insulation and a clean finish on large-diameter packs and assemblies.
Each listing covers a single piece of tubing sold by the meter (1m or 2m per order). The flat width ranges from 135mm (≈5.3") to 625mm (≈24.6"), with the corresponding expanded inner diameter (Ø) shown in each variant name — for example, 135mm flat width expands to approximately Ø85mm (≈3.3"). Material is PVC with a typical 2:1 shrink ratio. Standard variants have a wall thickness of approximately 0.1mm–0.15mm; select Blue and Transparent variants are available in a heavier 0.2mm wall thickness for added durability. Colors include Black, White, Blue, Red, Green, Fruit Green, Transparent, and Yellow.
Typical use cases include rewrapping RC car and drone battery packs, insulating custom LiPo battery assemblies, color-coding NiMH sub-C cell groups, and protecting large wire harnesses or cable bundles in automotive and marine applications.
🔋
Compatible with LiPo, LiFe, NiMH, NiCd, and Li-Ion battery pack formats. Suitable for RC cars, drones, boats, and custom battery builds. Verify flat width against your pack circumference before ordering.
⚠️
The flat width listed (e.g., 135mm) is the lay-flat measurement, not the inner diameter. The inner diameter (Ø) is shown in parentheses in each variant name. Measure your pack's circumference and divide by 2 to find the minimum flat width needed.
✅ Key Features of These Wide PVC Heat Shrink Tubes
-
📐Wide Size Range — Flat widths from 135mm (≈5.3") to 625mm (≈24.6") cover everything from mid-size RC battery packs to large custom cell assemblies, eliminating the need to source multiple products.
-
🎨Multiple Color Options — Available in Black, White, Blue, Red, Green, Fruit Green, Transparent, and Yellow, making it easy to color-code battery packs by chemistry, voltage, or capacity for quick field identification.
-
🔒Electrical Insulation — PVC construction provides a dielectric barrier around battery cells and wire bundles, reducing the risk of shorts from contact with conductive surfaces during use or storage.
-
💧Moisture-Resistant Finish — Once fully shrunk, the tubing forms a snug, moisture-resistant sleeve that helps protect battery packs from light splashing and humidity in RC outdoor environments.
-
🏋️Heavy-Wall Option Available — Select Blue and Transparent variants come in a 0.2mm wall thickness for applications requiring extra abrasion resistance, such as battery packs mounted in high-vibration RC chassis.
-
✂️Easy to Cut and Apply — Cuts cleanly with scissors before shrinking; activates at low heat gun temperatures (typically 70°C–90°C / 158°F–194°F) without requiring specialized tools, making battery rewrapping accessible for DIY builders.
📐 Technical Specifications — Wide PVC Heat Shrink Tubing
| Material |
PVC (Polyvinyl Chloride) |
| Flat Width Range |
135mm (≈5.3") – 625mm (≈24.6") |
| Inner Diameter (Ø) Range |
Ø85mm (≈3.3") – Ø398mm (≈15.7") |
| Available Lengths |
1 meter (≈39.4") or 2 meters (≈78.7") |
| Shrink Ratio |
Typically 2:1 |
| Standard Wall Thickness |
Typically 0.1mm–0.15mm (after shrink) |
| Heavy-Wall Thickness |
0.2mm (select Blue and Transparent variants) |
| Activation Temperature |
Typically 70°C–90°C (158°F–194°F) |
| Available Colors |
Black, White, Blue, Red, Green, Fruit Green, Transparent, Yellow |
| Typical Applications |
RC battery pack wrapping, LiPo / NiMH / NiCd insulation, wire harness protection |
| Sold As |
Single piece per order (1m or 2m) |
| Country of Origin |
See variant options |
❓ Frequently Asked Questions
How do I choose the right flat width for my battery pack?
Measure the circumference of your battery pack, then divide by 2 to get the minimum flat width needed. For example, a pack with a 170mm circumference needs approximately an 85mm flat-width tube. The flat width listed (e.g., 135mm) is the lay-flat measurement; the inner diameter (Ø) shown in parentheses is the approximate expanded diameter. Choose a size slightly larger than your pack's cross-section for a snug, wrinkle-free shrink. When in doubt, size up — you can always trim excess length, but you cannot stretch tubing that is too narrow.
What shrink ratio does this PVC tubing have?
This PVC heat shrink tubing typically has a 2:1 shrink ratio, meaning it shrinks to roughly half its expanded diameter when heat is applied. Always verify the final shrunken diameter fits your application before committing to a full wrap. If you need a tighter fit, select a size closer to your pack's actual diameter.
What temperature is needed to shrink this tubing?
PVC heat shrink tubing generally activates at temperatures between 70°C–90°C (158°F–194°F). A heat gun on a low or medium setting works well. Move the heat gun evenly along the length of the tube to avoid hot spots. Avoid open flames, which can scorch or melt the material unevenly and may damage the battery cells underneath.
Is this tubing safe for LiPo, NiMH, and NiCd battery packs?
Yes. This wide-format PVC heat shrink tubing is commonly used to wrap RC battery packs including LiPo, NiMH, and NiCd chemistries. It provides electrical insulation and physical protection for the cells. Ensure the pack surface temperature during normal use stays within the tubing's rated range, and allow the pack to cool before applying heat if it has been recently discharged.
Can I use this tubing outdoors or in wet conditions?
PVC heat shrink tubing generally offers good moisture resistance once fully shrunk, making it suitable for light outdoor use such as RC cars and boats operating in damp conditions. However, it is not rated for continuous submersion. For harsh outdoor or marine environments, consider additional sealing measures such as end caps or adhesive-lined tubing at the terminals.
What is the difference between the standard and 0.2mm wall thick variants?
Standard color variants (Black, White, Blue, Red, Transparent, Green, etc.) typically have a wall thickness of approximately 0.1mm–0.15mm after shrinking, which is sufficient for most battery rewrapping and insulation tasks. The variants labeled "0.2mm Wall Thick" (available in Blue and Transparent) offer a heavier-duty wall for added abrasion resistance and durability — a good choice for battery packs mounted in high-vibration RC chassis or applications where the pack may contact rough surfaces.
How do I cut the tubing cleanly before or after shrinking?
Use sharp scissors or a utility knife on a flat surface. Cutting before shrinking generally gives the cleanest edge. If you need to trim after shrinking, a sharp blade works well — score lightly first, then cut through. Avoid tearing, which can cause uneven edges that may peel or lift over time.
🛒 Select your width, color, and length above, then add to cart — ships from our US warehouse.
