{"product_id":"70mm-pvc-heat-shrink-tubing-battery-sleeve","title":"70mm PVC Heat Shrink Tubing for Battery Packs — 8 Colors, 1–30M","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003e70mm PVC Heat Shrink Tubing for Battery Packs — Protect, Insulate \u0026amp; Color-Code\u003c\/h2\u003e\n\u003cp\u003eBare battery cells and exposed pack assemblies are a liability — they scratch, short, and are impossible to tell apart once you have more than a few on the bench. Whether you're rebuilding e-bike battery packs, assembling 18650 cell groups, or refurbishing power tool batteries, a clean, snug sleeve makes the difference between a professional result and a fire hazard waiting to happen.\u003c\/p\u003e\n\u003cp\u003eThis 70mm flat-width PVC heat shrink tubing is sold by the meter in lengths from 1 meter (≈3.3 ft) up to 30 meters (≈98.4 ft), so you only buy what your project actually needs. The 70mm flat width recovers to fit battery packs with a circumference of approximately 40–44mm diameter — covering large single cells (26650, 32650) and small assembled multi-cell packs. Available in 8 colors: Black, White, Green, Yellow, Blue, Red, Transparent, and Fruit Green.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include DIY 18650 battery pack wrapping, e-bike and RC battery sleeve replacement, power tool battery refurbishment, and color-coded cell group identification in multi-pack builds. The transparent variant is especially popular for battery packs where label visibility matters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003eℹ️\u003c\/span\u003e \u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for battery packs and large single cells with a pre-shrink diameter of approximately 40–44mm. Fits common formats including 26650, 32650, and small assembled 18650 packs. Verify your pack's outer circumference before ordering.\u003c\/div\u003e\n\u003ch2\u003e✅ Key Features of This 70mm PVC Heat Shrink Battery Sleeve Tubing\u003c\/h2\u003e\n\u003cul class=\"hdiy-features\"\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔋\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003ePurpose-Built for Battery Packs\u003c\/strong\u003e — 70mm flat width is sized specifically for large-format cells and assembled battery packs, providing a snug, wrinkle-free sleeve after shrinking.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🎨\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003e8 Color Options for Easy Identification\u003c\/strong\u003e — Color-code your battery packs by voltage, capacity, or chemistry. Transparent variant lets you keep labels and markings visible through the sleeve.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚡\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eElectrical Insulation Layer\u003c\/strong\u003e — PVC material provides a non-conductive outer barrier, reducing the risk of accidental shorts on exposed cell terminals during handling and storage.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔥\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eLow Activation Temperature\u003c\/strong\u003e — Shrinks reliably with a standard heat gun at 90–120°C (194–248°F). No specialized equipment needed — works with tools most DIYers already own.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📏\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eFlexible Length Options\u003c\/strong\u003e — Choose from 1 m, 3 m, 5 m, 10 m, 20 m, or 30 m rolls. Single-project builders can start with 1 m; production builders and repair shops save more per meter with the 30 m roll.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e✂️\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eEasy to Cut and Position\u003c\/strong\u003e — Cuts cleanly with standard scissors before shrinking. Slides freely over the pack before heat is applied, allowing precise positioning with no adhesive mess.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e📐 Technical Specifications — 70mm PVC Heat Shrink Battery Sleeve Tubing\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003ePVC (Polyvinyl Chloride)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFlat Width\u003c\/th\u003e\n\u003ctd\u003e70mm (≈2.76\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecovered Diameter (approx.)\u003c\/th\u003e\n\u003ctd\u003eTypically 40–44mm (≈1.57–1.73\") — verify with your pack dimensions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShrink Ratio\u003c\/th\u003e\n\u003ctd\u003eTypically 2:1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eActivation Temperature\u003c\/th\u003e\n\u003ctd\u003eTypically 90–120°C (194–248°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Colors\u003c\/th\u003e\n\u003ctd\u003eBlack, White, Green, Yellow, Blue, Red, Transparent, Fruit Green\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Lengths\u003c\/th\u003e\n\u003ctd\u003e1 m (≈3.3 ft), 3 m (≈9.8 ft), 5 m (≈16.4 ft), 10 m (≈32.8 ft), 20 m (≈65.6 ft), 30 m (≈98.4 ft)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWall Thickness (pre-shrink)\u003c\/th\u003e\n\u003ctd\u003eSee variant options \/ Contact us to confirm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVoltage Rating\u003c\/th\u003e\n\u003ctd\u003eContact us to confirm — not rated for high-voltage applications\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTypical Application\u003c\/th\u003e\n\u003ctd\u003eBattery pack wrapping, cell sleeve replacement, insulation, color-coding\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of Origin\u003c\/th\u003e\n\u003ctd\u003eSee product listing \/ Contact us to confirm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-note\"\u003e\n\u003cspan class=\"hdiy-note-icon\"\u003e⚠️\u003c\/span\u003e \u003cstrong\u003eSizing Note:\u003c\/strong\u003e Flat width and recovered diameter are approximate. Always measure your battery pack's outer circumference and divide by π (3.14) to estimate the required flat width before cutting. When in doubt, size up.\u003c\/div\u003e\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-faq\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat diameter battery packs does 70mm heat shrink tubing fit?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003eA 70mm flat-width PVC heat shrink tube typically fits battery packs with a diameter of approximately 40–44mm before shrinking. This generally covers large single-cell formats and multi-cell packs such as 26650, 32650, or small assembled 18650 packs. To confirm fit, measure your pack's outer circumference and divide by π (3.14) — the result should be close to 70mm or less. Always measure before cutting.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow much does this tubing shrink, and what is the shrink ratio?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003ePVC heat shrink tubing of this type generally has a 2:1 shrink ratio, meaning it shrinks to approximately half its original flat width when heat is applied. At 70mm flat width, the recovered diameter is typically around 20–22mm, though actual results depend on the heat source, distance, and application time. Apply heat evenly and work from one end to avoid trapping air bubbles.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat temperature is needed to shrink this tubing, and what tool should I use?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003ePVC heat shrink tubing typically activates at temperatures between 90°C and 120°C (194°F–248°F). A heat gun set to low or medium is the recommended tool — most standard 300W–500W heat guns work well. Avoid open flames such as lighters or torches, as uneven heat can cause bubbling, discoloration, or uneven shrinkage that leaves gaps at the ends.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan this tubing be used outdoors or in damp environments?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003ePVC offers basic moisture resistance and is suitable for indoor battery storage and light-duty outdoor use where the pack is not directly exposed to rain or standing water. For prolonged outdoor exposure, high-humidity environments, or waterproofing requirements, consider a dual-wall adhesive-lined heat shrink tubing that creates a fully sealed barrier. This product is not rated for submersion.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I choose the right length for my project?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003eMeasure the length of your battery pack or cell group and add at least 10–15mm (about ½\") on each end for overlap and a clean finish. For example, a standard 18650 cell is 65mm (≈2.6\") long — a 1-meter roll provides enough material for approximately 12–14 individual cell sleeves with overlap. For larger battery pack builds, e-bike packs, or production runs, the 10–30 meter options offer better value per meter.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this tubing electrically insulating, and is it safe to use on live battery cells?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003eYes. PVC is an electrical insulator and is widely used for battery sleeve protection because it provides a non-conductive outer layer that reduces the risk of accidental shorts during handling and storage. However, this tubing is not rated for high-voltage applications. For voltages above 600V or safety-critical installations, consult a rated insulation product and follow applicable electrical codes.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use this for color-coding battery packs or cell groups?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003eAbsolutely — this is one of the most practical uses for this product. With 8 available colors (Black, White, Green, Yellow, Blue, Red, Transparent, and Fruit Green), you can color-code battery packs by voltage, capacity, state of charge, or cell chemistry in multi-pack systems. The transparent variant is especially useful when you need to keep printed labels or cell markings visible through the sleeve.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I cut the tubing cleanly, and can I reuse it once shrunk?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003eBefore shrinking, the tubing cuts cleanly with standard household scissors or a utility knife — no special tools required. Slide it over your battery pack, position it carefully, then apply heat. Once shrunk, PVC heat shrink tubing cannot be re-expanded or reused. If you need to remove it, carefully slit it lengthwise with a seam ripper or hobby knife, taking care not to damage the cell beneath.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your color and length above, then add to cart — ships from our US warehouse.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"Black \/ 1 Meter","offer_id":52310704259346,"sku":"GLFBFHHGLBZSJ001102x1","price":2.49,"currency_code":"USD","in_stock":true},{"title":"White \/ 1 Meter","offer_id":52310704292114,"sku":"GLFBFHHGLBZSJ001103x1","price":2.49,"currency_code":"USD","in_stock":true},{"title":"Green \/ 1 Meter","offer_id":52310704324882,"sku":"GLFBFHHGLBZSJ001104x1","price":2.49,"currency_code":"USD","in_stock":true},{"title":"Yellow \/ 1 Meter","offer_id":52310704357650,"sku":"GLFBFHHGLBZSJ001105x1","price":2.49,"currency_code":"USD","in_stock":true},{"title":"Blue \/ 1 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