PVC Heat Shrink Tubing for RC Battery & 18650 Cells — 7mm to 120mm, Multicolor

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PVC Heat Shrink Tubing for RC Battery & 18650 Cells — 7mm to 120mm, Multicolor

HomeDIYer

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Width Flat (Diameter): 7mm（Φ 4mm）

Sheath Colour: Black

Length(M): 1 Meter

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$2.73 USD

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Verfügbar (500 Stück), versandbereit

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PVC Heat Shrink Tubing for RC Battery & 18650 Cells — Reliable Insulation in 30+ Colors

If you've ever had a battery wrap peel, a wire bundle unravel, or a bare connector cause a short, you know how critical a clean, tight sleeve can be. This PVC heat shrink tubing is designed for hobbyists, makers, and technicians who need a fast, color-coded insulation solution for 18650 lithium cells, RC battery packs, wire harnesses, and DIY electronics projects.

Each order is sold by the meter and available in flat widths from 7mm (Φ 4mm) up to 120mm (Φ 76mm) — covering everything from thin signal wires to large multi-cell battery packs. The tubing is made from flexible PVC with a 2:1 shrink ratio, and comes in over 30 sheath colors including Black, White, Transparent, Red, Blue, Green, Yellow, Purple, Silver Grey, and specialty finishes like Transparent Gold and Tudor Gold. Sizes are clearly labeled with both flat width and inner diameter (e.g., 29.5mm / Φ 18.5mm) so you can match to your component without guesswork.

Typical use cases include rewrapping worn 18650 battery cells, sleeving RC LiPo pack connections, color-coding wire bundles in automotive or marine wiring, and protecting solder joints on DIY electronics. The wide size range and color selection make it a go-to for battery rebuild shops, RC enthusiasts, and workshop tool organization.

🔋 Compatibility Note: The 29.5mm flat width (Φ 18.5mm) variant fits standard 18650 cells. For multi-cell RC packs, select a larger flat width. Each variant listing shows both flat width and inner diameter — match the Φ value to your component's outer diameter.

✅ Key Features of These PVC Heat Shrink Tubes

📐Wide Size Range — Flat widths from 7mm (Φ 4mm) to 120mm (Φ 76mm) cover thin signal wires, 18650 cells, and large RC battery packs in a single product line.
🎨30+ Sheath Colors — Color-code your battery cells, wire bundles, or connectors for fast visual identification; includes Black, White, Transparent, Red, Blue, Green, Yellow, Purple, Silver Grey, and more.
🔥2:1 Shrink Ratio — PVC construction typically shrinks to approximately half its flat diameter when heated to 70–90°C (158–194°F), forming a snug, uniform sleeve around cylindrical cells and cables.
✂️Cut-to-Length Flexibility — Sold by the meter, this heat shrink tubing can be trimmed to any length with scissors before or after application, reducing waste on short wrapping jobs.
⚡Electrical Insulation — PVC material provides dielectric insulation suitable for low-voltage battery wrapping, wire sleeving, and connector protection in DIY electronics and RC applications.
🏷️Clear Size Labeling — Each variant shows both flat width and inner diameter (e.g., 29.5mm / Φ 18.5mm), so you can confidently match tubing to your 18650 cell, LiPo pack, or wire bundle without measuring twice.

📐 Technical Specifications — PVC Heat Shrink Tubing

Material	PVC (Polyvinyl Chloride)
Shrink Ratio	Typically 2:1
Activation Temperature	Typically 70–90°C (158–194°F)
Flat Width Range	7mm – 120mm
Inner Diameter Range	Φ 4mm – Φ 76mm (see variant options)
Available Colors	30+ colors (see variant options)
Length per Unit	1 Meter (cut-to-length)
Voltage Rating	Contact us to confirm
Wall Thickness (pre-shrink)	See variant options
Suitable Applications	18650 battery rewrap, RC battery packs, wire sleeving, connector insulation

⚠️ Sizing Tip: To find your flat width, measure your battery or cable's outer diameter and multiply by π (≈3.14), then divide by 2. Or simply match the Φ value in the variant name to your component's diameter. When between sizes, size up.

❓ Frequently Asked Questions

How do I choose the right flat width for my battery or wire?

Measure the circumference of your battery or bundle, then divide by 2 to get the required flat width. For example, a standard 18650 cell (≈18.5mm diameter) has a circumference of about 58mm, so a flat width of 29.5mm (Φ 18.5mm) is typically the right fit. When in doubt, size up slightly — PVC shrink tubing generally shrinks 40–50% in diameter when heat is applied.

Quick reference: 7mm flat = Φ 4mm inner | 29.5mm flat = Φ 18.5mm (18650 cell) | 50mm flat = Φ 32mm | 120mm flat = Φ 76mm.

What shrink ratio does this PVC tubing have?

PVC heat shrink tubing generally has a 2:1 shrink ratio, meaning it typically shrinks to approximately half its original flat diameter when heated. This makes it well-suited for snug wrapping of cylindrical cells, wire bundles, and connectors.

Can I use this tubing outdoors or in wet environments?

PVC heat shrink tubing provides basic moisture resistance and is generally suitable for indoor and light outdoor use. For prolonged outdoor exposure, UV-heavy environments, or submersion, a dual-wall adhesive-lined heat shrink would typically offer better protection. Contact us to confirm suitability for your specific application.

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 best. Avoid open flames, which can cause uneven shrinkage or scorching. A hair dryer may work for smaller diameters but is generally less effective on larger sizes.

Is this tubing compatible with 18650 lithium cells and RC battery packs?

Yes. The 29.5mm flat width (Φ 18.5mm) variant is specifically sized for standard 18650 cells. Larger flat widths (e.g., 50mm–120mm) are well-suited for multi-cell RC battery packs, LiPo packs, and grouped wire harnesses. Always verify the diameter of your specific pack before ordering.

How do I convert flat width to the diameter it fits?

Each variant listing shows both the flat width and the inner diameter it fits — for example, '29.5mm (Φ 18.5mm)' means the tubing lies flat at 29.5mm and fits over objects up to approximately 18.5mm in diameter. Use the Φ value to match against your battery or cable diameter.

Can I cut this tubing to a custom length?

Yes. Each piece is sold by the meter and can be cut to any length with scissors or a utility knife before or after shrinking. Cut cleanly at a right angle for the neatest finish.

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

PVC Heat Shrink Tubing for RC Battery & 18650 Cells — 7mm to 120mm, Multicolor

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PVC Heat Shrink Tubing for RC Battery & 18650 Cells — Reliable Insulation in 30+ Colors

✅ Key Features of These PVC Heat Shrink Tubes

📐 Technical Specifications — PVC Heat Shrink Tubing

❓ Frequently Asked Questions

PVC Heat Shrink Tubing for RC Battery & 18650 Cells — 7mm to 120mm, Multicolor

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