18650 Battery PVC Heat Shrink Tubing Wrap — 50mm to 75mm, Multiple Colors

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Sale price$3.60 USD
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In stock (500 units), ready to be shipped

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Description

 

18650 Battery Heat Shrink Tubing — Clean, Insulated Sleeve Covers for Single Cells and Packs

Anyone who has rebuilt a battery pack or repurposed 18650 cells knows the frustration of bare, unprotected cells rattling around with worn or missing wraps. Damaged sleeves expose the cell casing, create short-circuit risks, and make it nearly impossible to identify polarity at a glance. Whether you are a hobbyist building e-bike packs, a technician refurbishing power tool batteries, or a maker working on DIY flashlight builds, having the right 18650 battery heat shrink tubing on hand is a basic safety essential.

This PVC heat shrink tubing is available in flat widths from 50mm (≈1.97") to 75mm (≈2.95"), sold in lengths of 1 meter (≈3.3 ft), 5 meters (≈16.4 ft), and 10 meters (≈32.8 ft). The tubing is made from PVC (polyvinyl chloride) with a generally 2:1 shrink ratio, and comes in 13 color options including Black, White, Red, Blue, Yellow, Green, Oliver Green, Grey, Purple, Orange, Orange-Red, Light Yellow, and Transparency. Cut to length, slide over your cell or pack, and apply heat to achieve a firm, form-fitting sleeve.

Common use cases include rewrapping individual 18650 cells for lithium-ion battery pack rebuilds, color-coding cells by capacity or charge state in multi-cell flashlight and vaping mod builds, and insulating grouped cells in DIY electric vehicle or RC battery packs. The wide width range makes this tubing suitable for single-cell sleeves as well as small parallel cell groups.

🔋 Compatibility: Designed for 18650 lithium-ion cells (≈18mm diameter, ≈65mm length). Width options 50–75mm flat cover single cells and small multi-cell configurations. Verify your pack dimensions before ordering.

✅ Key Features of These 18650 Battery PVC Heat Shrink Tubing Wraps

  • 📐Six Width Options — Flat widths of 50mm, 55mm, 60mm, 66mm, 70mm, and 75mm let you match the tubing to single 18650 cells or small grouped packs without guesswork.
  • 🎨13 Color Choices — From classic Black and White to Transparency, Oliver Green, Purple, and Orange-Red, color-coding your cells by capacity, chemistry, or charge cycle is straightforward.
  • 🔥PVC Material with ~2:1 Shrink Ratio — Applies cleanly with a heat gun at typically 70–90°C (158–194°F), conforming tightly to the cell surface without adhesive residue.
  • ✂️Cut-to-Length Flexibility — Sold in 1m, 5m, and 10m rolls so you can cut exactly what you need for single-cell rewraps or bulk battery pack production runs.
  • Electrical Insulation Layer — The PVC sleeve adds a protective insulating barrier over the cell casing, reducing accidental contact shorts during handling and assembly.
  • 🏷️Transparent Option Available — The Transparency variant lets the original cell label remain visible through the sleeve, useful when you need to retain manufacturer markings for traceability.

📐 Technical Specifications — PVC Heat Shrink Battery Sleeve Tubing

Product Type PVC Heat Shrink Tubing
Primary Application 18650 lithium-ion battery cell sleeve / wrap
Material PVC (Polyvinyl Chloride)
Flat Width Options 50mm (≈1.97"), 55mm (≈2.17"), 60mm (≈2.36"), 66mm (≈2.60"), 70mm (≈2.76"), 75mm (≈2.95")
Available Lengths 1 Meter (≈3.3 ft), 5 Meter (≈16.4 ft), 10 Meter (≈32.8 ft)
Color Options Black, White, Yellow, Blue, Red, Transparency, Oliver Green, Grey, Purple, Green, Orange-Red, Orange, Light Yellow
Shrink Ratio Typically 2:1
Activation Temperature Typically 70–90°C (158–194°F)
Wall Thickness (pre-shrink) See variant options / Contact us to confirm
Suitable Cell Diameter Typically up to ≈18mm for 50mm width; larger widths for grouped packs
Application Tool Heat gun (recommended); avoid open flame
Adhesive Lining None (non-adhesive lined)
⚠️ Sizing Note: Flat width is measured before shrinking. After heat is applied, the tubing shrinks to approximately half the flat width in diameter. Always verify your cell or pack outer diameter against the selected flat width before cutting a full roll.

❓ Frequently Asked Questions

How do I choose the right width for my 18650 battery?

Measure the outer diameter of your battery or cell pack. For a standard single 18650 cell (≈18mm diameter), a 50mm flat-width tube typically provides a snug fit after shrinking. For larger packs or grouped cells, choose a wider option such as 60mm, 66mm, or 75mm. When in doubt, size up — you can always shrink tighter, but you cannot stretch the tubing.

What shrink ratio does this PVC tubing have?

PVC heat shrink tubing generally has a 2:1 shrink ratio, meaning it shrinks to approximately half its original flat width when heat is applied. The exact ratio may vary slightly by batch; contact us to confirm if your application requires tight tolerances.

What temperature is needed to shrink this tubing?

PVC heat shrink tubing typically activates at around 70–90°C (158–194°F). A heat gun set to low-to-medium heat works well. Avoid open flames, which can scorch or melt the material unevenly.

Is this tubing safe for outdoor or high-humidity use?

PVC offers moderate moisture resistance and is generally suitable for indoor battery storage and light-duty applications. For prolonged outdoor exposure or high-humidity environments, consider additional sealing. This tubing is not rated for submersion.

Can I use this for battery packs with multiple 18650 cells?

Yes. For multi-cell packs, measure the total outer circumference of the grouped cells and select a flat width that is at least 10–15% larger than half that circumference. The 60mm, 66mm, 70mm, and 75mm options are commonly used for 2S or 3S parallel packs.

How much tubing do I need per battery?

A standard 18650 cell is approximately 65mm (≈2.6") long. Allow an extra 5–10mm on each end for overlap. For a single cell, roughly 75–85mm of tubing per sleeve is typical. The 1-meter length covers approximately 12–13 single cells; the 5-meter roll covers around 60–65 cells.

Does the color affect the electrical insulation properties?

No. Color is purely cosmetic and does not affect the insulation or shrink performance of the tubing. All color variants share the same PVC material and shrink characteristics. The Transparency option allows you to see the battery label through the sleeve.

🛒 Select your width, color, and length above, then add to cart — ships from our US warehouse.

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