PVC Heat Shrink Tubing 91mm–170mm — Reliable Battery Pack Wrapping for DIY Builders
If you've ever wrestled with loose cells, exposed terminals, or a battery pack that just doesn't look finished, you know how frustrating it is to find tubing that actually fits. Whether you're a hobbyist rebuilding an e-bike battery, a maker assembling a custom power wall, or a technician refurbishing tool packs, having the right PVC heat shrink tubing on hand makes the difference between a professional result and a risky one.
Each roll contains 1 meter (≈39.4") of PVC heat shrink tubing at 0.1mm wall thickness, available in diameters from 91mm (≈3.6") to 170mm (≈6.7") before shrinking. The wide size range covers everything from compact 18650 multi-cell packs to large prismatic battery assemblies. Choose from 10+ colors including Black, White, Transparent, Blue, Red, Green, Silver Gray, Yellow, Fruit Green, Blue Thickened, and Transparent Thickening.
This PVC heat shrink tubing is a go-to solution for lithium-ion battery pack wrapping, wire harness insulation for RC vehicles and drones, and cable bundling in home electrical projects. The large-diameter format fills a gap that standard small-bore tubing simply can't address, making it a staple for anyone doing serious battery work.
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Compatible with: 18650 / 21700 / 26650 cell packs, prismatic LiFePO4 packs, NiMH sub-C packs, custom power bank assemblies, and large wire harness bundles. Sizes 91mm–170mm (pre-shrink diameter). Confirm your pack circumference before ordering.
✅ Key Features of These PVC Heat Shrink Tubing Rolls
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Wide Diameter Range — Covers 91mm to 170mm (pre-shrink), making this heat shrink tubing for large battery packs one of the most versatile options available for DIY builders.
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10+ Color Options — From classic Black and White to Transparent, Fruit Green, and Silver Gray, so you can color-code packs by voltage, capacity, or cell chemistry for easy identification.
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Electrical Insulation — PVC material provides a reliable insulating layer over battery terminals and cell connections, reducing the risk of short circuits during handling and storage.
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Low Activation Temperature — Shrinks at generally 70–90°C (158–194°F), so a standard heat gun on low setting is all you need — no specialized equipment required for battery pack heat shrink wrapping.
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Easy to Cut and Position — Soft, flexible PVC slides over assembled packs without snagging on connectors or wires, and cuts cleanly with scissors for a neat, wrinkle-free finish.
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1 Meter Per Roll — Each roll gives you 1 meter (≈39.4") of usable tubing — typically enough for one full battery pack wrap, with material left over for trimming and adjustments.
📐 Technical Specifications — PVC Heat Shrink Tubing
| Material |
PVC (Polyvinyl Chloride) |
| Wall Thickness |
0.1mm |
| Pre-Shrink Diameter Range |
91mm (≈3.6") – 170mm (≈6.7") |
| Length Per Roll |
1 Meter (≈39.4") |
| Shrink Ratio |
Typically 2:1 (confirm for specific size) |
| Activation Temperature |
Generally 70–90°C (158–194°F) |
| Available Colors |
Black, White, Blue, Red, Transparent, Green, Silver Gray, Yellow, Fruit Green, Blue Thickened, Transparent Thickening |
| Available Sizes |
91 / 95 / 103 / 110 / 115 / 120 / 123 / 125 / 130 / 135 / 140 / 145 / 150 / 155 / 160 / 162 / 165 / 170 mm |
| Recommended Application |
Battery pack wrapping, wire insulation, cable bundling |
| Voltage Rating |
See variant options / Contact us to confirm |
| Operating Temperature Range |
Contact us to confirm |
| Flammability |
Contact us to confirm |
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Size Note: Diameter listed is the pre-shrink (flat lay) measurement. Always measure your battery pack's circumference and divide by π (3.14) to estimate the required tubing diameter. When in doubt, size up — you can always trim excess length.
❓ Frequently Asked Questions
How do I choose the right diameter for my battery pack?
Measure the circumference of your assembled battery pack, then divide by π (≈3.14) to get the approximate diameter. Choose a tubing size that is typically 5–15% larger than that number so it slides on easily before shrinking. For example, a pack with an 88mm diameter would generally work well with the 91mm or 95mm option. If you're between sizes, size up — the tubing will still shrink snugly.
What is the shrink ratio, and how much will it shrink down?
PVC heat shrink tubing typically has a 2:1 shrink ratio, meaning it can shrink to approximately half its original diameter when heat is applied evenly. For example, the 170mm (≈6.7") size would generally shrink down to around 85mm (≈3.3"). Exact ratios may vary slightly by size — contact us to confirm for your specific variant.
Can I use this tubing outdoors or in damp environments?
PVC heat shrink tubing generally provides good resistance to incidental moisture and humidity, making it suitable for most indoor and sheltered outdoor applications. For prolonged outdoor exposure, rain, or submersion, a dual-wall adhesive-lined heat shrink is typically recommended for a fully sealed result. Contact us if you need guidance for a specific environment.
What tool do I need to shrink this tubing?
A standard heat gun set to low or medium (generally 70–90°C / 158–194°F) is the most reliable tool. Move the heat gun slowly and evenly around the tubing to avoid hot spots or bubbling. Avoid open flames such as lighters or torches, as they can scorch or melt the PVC unevenly and may damage the cells underneath.
Is this compatible with lithium-ion and LiFePO4 battery packs?
Yes. This PVC heat shrink tubing is widely used for wrapping lithium-ion (18650, 21700, 26650) and LiFePO4 prismatic battery packs. The 91mm–170mm diameter range covers most multi-cell configurations used in e-bikes, power walls, and tool battery rebuilds. Always verify your pack's diameter against the pre-shrink size before ordering.
How much tubing do I need for one battery pack?
Each roll contains 1 meter (≈39.4") of tubing. For most standard battery pack wrapping jobs — such as a 10S2P or 13S4P configuration — 1 meter is generally sufficient to cover the pack with a small overlap at each end. For longer packs or if you want extra material for trimming, consider ordering 2 rolls. Bulk pricing is available — contact us for details.
Does the color affect electrical performance or insulation?
No. Color is purely cosmetic and does not affect the electrical insulation properties or shrink performance of the tubing. All colors share the same 0.1mm PVC construction. Transparent and Transparent Thickening options are popular when you want the cell labels or spot welds to remain visible after wrapping. The "Thickened" variants (Blue Thickened, Transparent Thickening) offer a slightly heavier wall for added durability.
🛒 Select your size and color above, then add to cart — ships from our US warehouse.
