195mm Flat Width PVC Heat Shrink Tubing Battery Sleeve — Green & Blue, 0.12mm / 0.2mm Wall

A 195mm flat width corresponds to an expanded inner diameter of approximately 124mm (≈4.9"). This generally fits large cylindrical battery packs, grouped 18650/21700 cell assemblies, and similar objects up to about 120mm in diameter. Always measure your object before ordering to ensure a proper fit — the tubing should slide over the object with a small amount of clearance before heat is applied.

The 0.12mm wall is thinner and more flexible, making it easier to shrink over irregular shapes and suitable for lighter-duty insulation tasks. The 0.2mm wall provides greater mechanical protection and puncture resistance, and is generally preferred for battery packs that may experience physical stress, vibration, or abrasion during use. If you're unsure, the 0.2mm option is typically the safer choice for battery pack applications.

PVC heat shrink tubing typically has a 2:1 shrink ratio, meaning it shrinks to approximately half its expanded diameter when heat is applied. For this 195mm flat-width tubing, the recovered inner diameter is typically around 60–65mm. Exact recovered dimensions can vary based on heat application technique and ambient conditions. Contact us to confirm if your application requires tight tolerances.

PVC heat shrink tubing generally provides good moisture resistance for indoor and semi-protected environments. However, for prolonged outdoor UV exposure, direct weathering, or submersion, an adhesive-lined polyolefin tubing is typically a better choice. This product is best suited for indoor battery assemblies, electronics enclosures, and workshop use where it won't be exposed to extended sunlight or standing water.

A heat gun is the recommended tool. Apply even heat at typically 90–120°C (194–248°F) while moving the gun slowly and consistently along the length of the tubing. Start from the center and work outward to avoid trapping air bubbles. A lighter or hair dryer may work in a pinch but can produce uneven results. Avoid direct flame contact, which can scorch or melt PVC and compromise insulation integrity.

Measure the total length of the battery pack or object you need to cover, then add at least 10–15% extra to account for overlap at the ends and any trimming. For example, a 500mm (≈19.7") battery pack would typically need at least 550–575mm of tubing. Longer rolls (5m, 8m, 10m) are cost-effective if you're building multiple assemblies or want material on hand for future repairs.

This PVC heat shrink tubing is intended for general electrical insulation use and is in common use for DIY lithium-ion battery pack sleeves. For specific RoHS compliance documentation, UL/CE certification, or regulated applications, please contact us to confirm before use. Always follow safe battery assembly practices and local electrical codes.