PVC Heat Shrink Tubing for RC Battery Packs — Secure, Clean Wraps from 9mm to 210mm Flat Width
Rebuilding or rewrapping an RC battery pack with torn, bubbled, or missing sleeve material is a frustrating job when you can't find the right diameter. Whether you're restoring a 2S LiPo for a racing buggy or wrapping a large NiMH stick pack for a vintage crawler, having the correct flat-width PVC heat shrink on hand makes the difference between a professional finish and a taped-up mess.
This PVC heat shrink tubing is available in 43 flat-width sizes ranging from 9mm (≈3/8") up to 210mm (≈8.3"), in Black or Blue, sold in 1m, 5m, and 20m lengths. Each variant lists both the flat width and the resulting post-shrink inner diameter (Ø) — for example, the 9mm flat-width tube shrinks to Ø5.7mm, while the 210mm flat-width tube shrinks to Ø133.7mm — so you can match your pack geometry before ordering. The tubing is made from PVC with a typical 2:1 shrink ratio and activates with a standard heat gun.
Typical use cases include RC LiPo battery pack rewrapping for 1/10 and 1/8 scale vehicles, NiMH sub-C stick pack rebuilds for vintage RC trucks and boats, and workshop-level battery assembly where a clean, insulated outer sleeve is required. The wide size range also suits e-bike battery module wrapping and DIY power tool battery rebuilds.
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Compatibility: Suitable for RC LiPo, NiMH, NiCd, and Li-Ion battery pack wrapping. Check your pack's circumference ÷ 2 to select the correct flat width. Shrink ratio is typically 2:1.
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Size tip: If your pack circumference falls between two sizes, choose the next size up. The tubing should slide over the pack before heat is applied. Confirm your pack dimensions before ordering — see the FAQ below for the measurement method.
✅ Key Features of These PVC Heat Shrink Tubing Wraps for RC Battery Packs
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📐43 Flat-Width Sizes — From 9mm (≈3/8") to 210mm (≈8.3"), covering small single-cell pouches up to large multi-cell NiMH stick packs and e-bike modules.
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🔵Two Color Options — Black and Blue variants share identical material specs; color coding helps distinguish pack chemistry or voltage in a multi-pack workshop setup.
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🔥Standard 2:1 Shrink Ratio — Activates at typically 90–120°C (195–250°F) with a heat gun; conforms snugly to irregular pack shapes without scorching cell wrappers.
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⚡Electrical Insulation — PVC construction provides a dielectric barrier around exposed cell groups, reducing short-circuit risk during handling and storage of RC LiPo battery packs.
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📦Flexible Quantity Options — Available in 1m, 5m, and 20m rolls; the 20m roll is suited for workshop stock or bulk battery rebuild projects where consistent sizing is needed across many packs.
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📏Ø Listed Per Variant — Every size shows the post-shrink inner diameter alongside the flat width, so you can verify clearance on your specific pack before cutting and applying heat.
📐 Technical Specifications — PVC Heat Shrink Tubing for Battery Packs
| Material |
PVC (Polyvinyl Chloride) |
| Shrink Ratio |
Typically 2:1 |
| Flat Width Range |
9mm (≈3/8") — 210mm (≈8.3") |
| Post-Shrink Inner Diameter Range |
Ø5.7mm — Ø133.7mm (see variant for exact Ø) |
| Activation Temperature |
Typically 90–120°C (195–250°F) |
| Colors Available |
Black, Blue |
| Length Options |
1m, 5m, 20m per order |
| Wall Thickness (pre-shrink) |
See variant options |
| Voltage Rating |
Contact us to confirm |
| Recommended Application Tool |
Heat gun (low setting); avoid open flame |
| Typical Use |
RC LiPo / NiMH / NiCd battery pack rewrapping, e-bike module wrapping, DIY power tool battery rebuilds |
❓ 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 required flat width. For example, a pack with a 60mm circumference needs a 30mm flat-width tube. When in doubt, size up by 5–10mm so the tubing slides on easily before shrinking. All variants list both flat width and the resulting inner diameter (Ø) to help you match your pack.
What is the shrink ratio of this PVC tubing?
PVC heat shrink tubing typically has a 2:1 shrink ratio, meaning it shrinks to roughly half its original flat width when heat is applied. The variant titles show the pre-shrink flat width and the post-shrink inner diameter (Ø) so you can verify fit before ordering.
What temperature is needed to shrink this tubing?
PVC heat shrink generally activates at temperatures around 90–120°C (195–250°F). A heat gun on a low setting works well. Avoid open flames, which can scorch or melt the material unevenly.
Is this tubing safe for LiPo and NiMH battery packs?
Yes. PVC heat shrink is widely used for wrapping RC LiPo, NiMH, and NiCd battery packs. It provides electrical insulation and mechanical protection. Always ensure the pack is fully assembled and balanced before applying heat.
Can I use this tubing outdoors or in wet conditions?
PVC heat shrink offers basic moisture resistance suitable for general RC use. It is not rated for continuous submersion. For waterproofing applications, consider adhesive-lined polyolefin tubing instead.
How much tubing do I need for a typical RC battery rebuild?
A single RC battery pack wrap typically requires 150–300mm (6–12 inches) of tubing depending on pack length. The 1m option covers several packs; the 5m and 20m rolls are cost-effective for workshop stock or bulk rebuilds.
What is the difference between Black and Blue variants?
The Black and Blue options are identical in material and performance — the color difference is purely cosmetic. Many builders use Blue to distinguish cell chemistry or pack voltage at a glance.
🛒 Select your size, color, and length above, then add to cart — ships from our US warehouse.
