Measure the total length of the battery pack or object you need to wrap, then add at least 10–15% extra to account for shrinkage along the length axis. For example, a 900mm (≈35.4") battery pack would typically need a 1 Meter cut. Choose 2 Meter or longer for larger packs or when you need multiple wraps from a single piece.

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. This 350mm flat-width tube is typically suited for battery packs or cylindrical objects with a circumference of up to roughly 700mm (≈27.6") before shrinking.

PVC heat shrink tubing generally provides a moisture-resistant barrier suitable for indoor and light-duty outdoor use. For prolonged outdoor exposure or submersion, a dual-wall adhesive-lined heat shrink is typically recommended for a more robust seal.

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 of the sleeve.

Yes, this PVC heat shrink sleeve is commonly used to wrap lithium-ion, LiPo, NiMH, and lead-acid battery packs for insulation and protection. Always confirm the pack's outer circumference fits within the 350mm flat width before ordering.

Black is the most common choice for battery packs and provides the best UV resistance. Blue is often used for color-coding or aesthetic builds. Transparent allows you to see cell labels, barcodes, or branding underneath the wrap — ideal for custom or display builds.

Yes. The tubing is sold in continuous lengths (1–5 Meter options) and can be cut with standard scissors or a utility knife before or after shrinking. Cut cleanly at a 90° angle for the neatest finish.