PVC Heat Shrink Tubing 170mm Flat Width — Battery Wrap Sleeve Insulation, 5 Colors

Measure the total length of cells or wiring you need to cover, then add 10–15% extra for overlap and trimming. For a standard 10-cell 18650 battery pack (typically around 650–700mm / ≈26–28" long), a 1-meter length is generally sufficient. For larger packs or full wraps on multiple rows, choose 2m or 3m. When in doubt, size up — unused tubing stores easily.

A 170mm flat width corresponds to a recovered diameter of approximately 108mm (≈4.25") when fully shrunk. Before shrinking, the expanded diameter is typically around 108mm, making it suitable for large battery packs, multi-cell 18650 assemblies, LiPo packs, and cylindrical objects up to roughly 100mm in diameter. Always verify your pack's circumference before ordering.

PVC heat shrink tubing generally provides good mechanical protection against abrasion, minor impacts, and vibration. It is not a structural component, but it holds cells together snugly and resists tearing under normal handling. For high-vibration applications such as RC vehicles or power tools, it is typically used alongside additional securing methods like strapping or enclosures.

PVC heat shrink tubing offers basic moisture resistance and is generally suitable for indoor and light outdoor use. It is not waterproof or rated for continuous submersion. For applications exposed to heavy rain, condensation, or marine environments, consider pairing it with a waterproof enclosure or using adhesive-lined heat shrink tubing instead.

A heat gun is the recommended tool for even, controlled shrinking. Most PVC heat shrink tubing begins to shrink at around 70–90°C (158–194°F) and fully recovers by approximately 120°C (248°F). Keep the heat gun moving to avoid scorching. A lighter or candle flame can work in a pinch but risks uneven shrinkage or burning — a heat gun is strongly preferred for battery wraps.

Color choice is primarily aesthetic. Black and Silver Grey are the most common for a clean, professional look on DIY battery packs. Transparent allows you to see cell labels and markings underneath — useful for identification and inspection. Blue, Fruit Green, and other colors are popular for custom builds, RC packs, and maker projects where visual distinction matters.

Yes. While this 170mm flat-width tubing is sized for large battery packs, it can also be used to bundle large cable harnesses, protect wiring looms in automotive or industrial settings, or sleeve large conduit runs. For smaller wire bundles, a narrower flat-width tubing would typically be a better fit.