PVC Heat Shrink Tubing for Battery Packs — Reliable Wrap for LiPo, Li-ion & NiCd Cells
Rebuilding a battery pack or protecting a DIY energy storage build shouldn't mean hunting down tubing that actually fits. Whether you're an RC hobbyist rewrapping a LiPo flight pack, a power tool technician rebuilding NiCd cells, or a maker assembling a custom Li-ion module, finding wide-format PVC heat shrink tubing in the right diameter is often the hardest part of the job.
This PVC heat shrink tubing is available in 14 flat-width sizes ranging from 95mm to 160mm (≈3.7" to 6.3"), with pre-shrink inner diameters from φ60mm (≈2.4") up to φ102mm (≈4.0"). Each listing is sold by the meter — choose 1m (≈3.3 ft), 2m (≈6.6 ft), or 5m (≈16.4 ft) depending on your project volume. Colors include Black, White, Yellow, Blue, Red, Green, Transparent, Fruit Green, and Silver Gray.
Typical use cases include rewrapping RC car and drone battery packs, insulating custom 18650 Li-ion modules for e-bikes and power walls, and protecting NiCd or NiMH sub-C cell packs used in cordless power tools. The wide flat-width format makes this tubing well-suited for multi-cell parallel or series configurations where standard narrow tubing falls short.
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Compatible with LiPo, Li-ion, NiCd, and NiMH battery pack formats. Verify your pack's outer diameter against the pre-shrink inner diameter (φ value) listed in the variant name before ordering.
✅ Key Features of These PVC Heat Shrink Tubing Wraps
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📐Wide Size Range — 14 flat-width options from 95mm to 160mm cover battery pack diameters from φ60mm to φ102mm, making it easy to find the right fit for single-cell and multi-cell configurations.
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🎨10 Color Options — Black, White, Yellow, Blue, Red, Green, Transparent, Fruit Green, and Silver Gray let you color-code packs by chemistry, voltage, or capacity for fast identification in the field.
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🔥Low-Temperature Activation — PVC heat shrink tubing typically activates at around 70–90°C (158–194°F), allowing safe application with a standard heat gun without risking damage to cell wraps or terminals.
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💧Moisture-Resistant Barrier — Once shrunk, the tubing forms a snug, moisture-resistant sleeve that helps protect battery cell connections and wraps from incidental contact with humidity and light splashing.
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📏Flexible Length Options — Available in 1m (≈3.3 ft), 2m (≈6.6 ft), and 5m (≈16.4 ft) cuts so you can order exactly what you need for a single rebuild or a bulk batch of packs.
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⚡Electrical Insulation — PVC is an established electrical insulator, making this tubing suitable for covering exposed cell connections and protecting against accidental shorts during assembly and storage.
📐 Technical Specifications — PVC Heat Shrink Tubing
| Material |
PVC (Polyvinyl Chloride) |
| Flat Width Range |
95mm – 160mm (≈3.7" – 6.3") |
| Pre-Shrink Inner Diameter Range |
φ60mm – φ102mm (≈2.4" – 4.0") |
| Available Lengths |
1m (≈3.3 ft), 2m (≈6.6 ft), 5m (≈16.4 ft) |
| Shrink Ratio |
Typically 2:1 (shrinks to approx. 50% of original inner diameter) |
| Activation Temperature |
Typically 70–90°C (158–194°F) |
| Available Colors |
Black, White, Yellow, Blue, Red, Green, Transparent, Fruit Green, Silver Gray |
| Recommended Application Tool |
Heat gun (low to medium setting) |
| Typical Applications |
LiPo, Li-ion, NiCd, NiMH battery pack wrapping; RC vehicles; power tool battery rebuilds; DIY energy storage |
| Wall Thickness (pre-shrink) |
See variant options |
| Country of Origin |
Contact us to confirm |
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Size selection tip: The flat width listed (e.g., 95mm) is the tubing measured flat before shrinking. The φ value (e.g., φ60mm) is the approximate inner diameter before heat is applied. Choose a size where the φ value is slightly larger than your battery pack's outer diameter.
❓ Frequently Asked Questions
How do I choose the right size heat shrink tubing for my battery pack?
Measure the outer diameter of your assembled battery pack. Then select a variant where the φ (pre-shrink inner diameter) value is slightly larger than your pack's diameter. For example, if your pack measures 58mm across, the 95mm flat-width variant (φ60mm) would be a close fit. PVC heat shrink typically shrinks to approximately 50% of its original inner diameter, so always confirm the post-shrink diameter will be smaller than your pack. When in doubt, size up — you can always apply more heat to tighten the fit.
What is the shrink ratio, and how tight will the tubing fit after shrinking?
This PVC tubing generally has a 2:1 shrink ratio, meaning it shrinks to approximately 50% of its original inner diameter when heat is applied. The final fit depends on your pack's exact diameter relative to the tubing size chosen. A snug pre-shrink fit will result in a tighter finished wrap. Avoid forcing tubing that is significantly undersized onto a pack before shrinking.
What temperature do I need to shrink this tubing, and can I use a heat gun?
PVC heat shrink tubing typically activates at around 70–90°C (158–194°F). A standard heat gun on a low or medium setting works well. Move the heat gun steadily along the tubing to avoid hot spots. Avoid open flames such as lighters or torches, which can cause uneven shrinking, scorching, or damage to the underlying cells.
Can this tubing be used outdoors or in humid environments?
PVC heat shrink tubing generally provides a moisture-resistant barrier suitable for indoor use and light outdoor exposure. It is not rated for sustained immersion or prolonged outdoor weathering. For applications in consistently wet or high-UV environments, consider additional protective measures such as a secondary enclosure or conformal coating on the terminals.
Is this tubing compatible with LiPo, Li-ion, NiCd, and NiMH battery packs?
Yes. This wide-format PVC heat shrink tubing is commonly used to wrap LiPo packs for RC aircraft and cars, Li-ion 18650 modules for e-bikes and DIY power walls, and NiCd or NiMH sub-C cell packs used in cordless power tools. Always confirm your pack's outer diameter matches the selected variant's φ value before ordering.
How much tubing do I need for one battery pack?
Measure the length of your battery pack and add approximately 10–20mm (≈0.4–0.8") of overlap on each end to allow for a clean, sealed edge after shrinking. A 1m (≈3.3 ft) length is typically sufficient for most single or small multi-cell packs. The 2m (≈6.6 ft) and 5m (≈16.4 ft) options are ideal for bulk rebuilds or workshops handling multiple packs at once.
Does the color of the tubing affect its electrical or thermal performance?
No. Color is purely cosmetic and does not affect the tubing's electrical insulation properties or shrink performance. Many builders use color-coding to distinguish battery packs by chemistry (e.g., black for LiPo, blue for Li-ion), voltage, or capacity — making it easier to identify packs quickly during field use or storage.
🛒 Select your size, length, and color above, then add to cart — ships from our US warehouse.
