285mm PVC Heat Shrink Tubing — Reliable Battery Pack Wrap & Sleeve Insulation
If you've ever finished building a battery pack only to have it look unfinished, unprotected, or prone to short circuits from exposed cells, you know how critical the right wrap is. Whether you're a hobbyist assembling RC car packs, a maker building custom power banks, or a technician refurbishing cordless tool batteries, a clean, snug sleeve makes all the difference in both safety and presentation.
This listing includes PVC heat shrink tubing with a 285mm flat width — corresponding to a pre-shrink diameter of approximately 181mm (≈7.1"). Available in Black and Blue, with length options of 1 Meter (≈39.4"), 2 Meter (≈78.7"), 3 Meter (≈118.1"), 4 Meter (≈157.5"), and 5 Meter (≈196.9"). The tubing is made from PVC (polyvinyl chloride), offering good dielectric strength and flexibility at a practical price point for both prototyping and production runs.
Typical use cases include wrapping large-format lithium-ion and NiMH battery packs for RC vehicles and drones, insulating custom power tool battery rebuilds, and bundling or color-coding cable harnesses in automotive and marine electrical projects — all applications where a secure, form-fitting battery pack wrap sleeve is essential.
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Compatibility Note: This tubing is sized for large-diameter battery packs and cylindrical assemblies. Before ordering, measure the circumference of your pack and confirm the flat width (285mm) is slightly larger than half that measurement. If you need a different flat width, contact us to confirm the right fit.
✅ Key Features of These 285mm PVC Heat Shrink Tube Sleeves
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🔋Large-Format Battery Pack Coverage — 285mm flat width accommodates large cylindrical and prismatic battery assemblies, making it a go-to choice for RC packs, power tool rebuilds, and custom lithium battery wrapping.
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⚡Electrical Insulation — PVC material provides solid dielectric protection, helping prevent accidental short circuits between exposed cell contacts and conductive surfaces during handling and use.
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🎨Two Color Options for Easy Identification — Choose Black for a clean, professional finish or Blue for color-coding battery packs in multi-pack systems — both colors shrink identically with no performance difference.
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📏Flexible Length Selection — Available in 1m through 5m cuts, so you can order exactly what your project needs without waste — ideal for both one-off DIY builds and small production runs of battery pack wrap sleeves.
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🔥Low-Temperature Activation — Shrinks reliably with a standard heat gun at generally 70°C–120°C (158°F–248°F), conforming tightly to irregular shapes without scorching or distorting the underlying cells.
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✂️Easy to Cut and Handle — Cuts cleanly with scissors or a utility knife before shrinking, allowing precise length control for battery sleeve insulation on packs of varying heights.
📐 Technical Specifications — PVC Heat Shrink Tubing
| Material |
PVC (Polyvinyl Chloride) |
| Flat Width |
285mm (≈11.2") |
| Pre-Shrink Diameter (approx.) |
~181mm (≈7.1") |
| Shrink Ratio |
Typically 2:1 |
| Activation Temperature |
Generally 70°C–120°C (158°F–248°F) |
| Available Colors |
Black, Blue |
| Available Lengths |
1m (≈39.4"), 2m (≈78.7"), 3m (≈118.1"), 4m (≈157.5"), 5m (≈196.9") |
| Wall Thickness (pre-shrink) |
See variant options |
| Voltage Rating |
Contact us to confirm |
| Recommended Application Tool |
Heat gun (low to medium setting) |
| Typical Use |
Battery pack wrapping, cable bundling, sleeve insulation |
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Sizing Tip: Flat width ≠ diameter. To confirm fit, measure the circumference of your battery pack and divide by 2 — the result should be slightly less than 285mm. When in doubt, contact us before ordering.
❓ Frequently Asked Questions
What does 285mm flat width mean, and how do I choose the right size?
Flat width is the measurement of the tubing when pressed flat. 285mm flat width generally corresponds to a pre-shrink diameter of approximately 181mm (≈7.1"). To choose the right size, measure the circumference of your battery pack or object and select tubing whose flat width is slightly larger than half that circumference. When in doubt, size up — the tubing will conform tightly once heat is applied.
How much does this heat shrink tubing shrink?
PVC heat shrink tubing of this type typically has a shrink ratio of approximately 2:1, meaning it will shrink to roughly half its original diameter when heated. Always verify the final fit on a sample piece before wrapping your full battery pack.
What temperature is needed to shrink this tubing?
PVC heat shrink tubing generally activates at temperatures between 70°C–120°C (158°F–248°F). A heat gun set to a low or medium setting works best. Avoid open flames, as they can scorch or melt the material unevenly.
Can this tubing be used outdoors or in wet environments?
PVC heat shrink tubing provides good moisture resistance for general indoor use and light outdoor applications. However, it is not rated for continuous submersion or prolonged UV exposure. For harsh outdoor or marine environments, consider adhesive-lined polyolefin tubing instead.
Is this tubing compatible with lithium-ion and NiMH battery packs?
Yes. This PVC heat shrink sleeve is commonly used to wrap lithium-ion (Li-ion), lithium polymer (LiPo), NiMH, and NiCd battery packs. It provides electrical insulation and a clean finished appearance. Always ensure the battery pack is fully assembled and cool before applying heat.
How do I cut the tubing to the right length?
Use sharp scissors or a utility knife to cut the tubing to your desired length before shrinking. Cut slightly longer than needed — typically add 10–20mm (≈0.4"–0.8") on each end — to allow for any shrinkage along the length and to ensure full coverage of the battery pack.
Which color should I choose — black or blue?
Both colors offer identical electrical insulation and shrink performance. Black is the most common choice for a clean, professional look and is widely used in RC cars, power tools, and DIY electronics. Blue is popular for color-coding battery packs or adding a distinctive appearance to custom builds.
🛒 Select your color and length above, then add to cart — ships from our US warehouse.
