{"product_id":"battery-pack-heat-shrink-wrap-70mm-blue","title":"Battery Pack PVC Heat Shrink Wrap - 70mm Flat Width - 44mm Diameter - Blue","description":"\u003cp\u003eBlue PVC heat shrink tubing for wrapping finished lithium battery packs. Supplied as continuous lay-flat tubing so you can cut it to whatever length your pack needs.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFlat width: 70mm\u003c\/li\u003e\n\u003cli\u003eDiameter before shrinking: approx. 44mm\u003c\/li\u003e\n\u003cli\u003eColour: blue\u003c\/li\u003e\n\u003cli\u003eMaterial: PVC heat shrink film\u003c\/li\u003e\n\u003cli\u003eSold by the metre as continuous tubing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat it fits\u003c\/h3\u003e\u003cp\u003eSuited to 21700 packs and larger 18650 assemblies, including two-cell-wide series blocks. Measure the widest cross-section of your assembled pack and choose a flat width that gives a little slack before shrinking.\u003c\/p\u003e\u003ch3\u003eHow to use\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003eFinish the pack, including the BMS, balance leads, and any insulation over the welds.\u003c\/li\u003e\n\u003cli\u003eCut a length of tubing slightly longer than the pack so the film overhangs both ends.\u003c\/li\u003e\n\u003cli\u003eSlide the pack inside and centre it.\u003c\/li\u003e\n\u003cli\u003eApply heat evenly with a heat gun, working from the middle outward so air can escape.\u003c\/li\u003e\n\u003c\/ol\u003e\u003cp\u003eCut openings for connectors and leads before shrinking, not after.\u003c\/p\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\u003cp\u003eHeat shrink is the outer insulation layer of a pack, not a structural component. Cells should already be held by holders or adhesive, and welds should be insulated with fish paper or Kapton before wrapping.\u003c\/p\u003e","brand":"RenewSpark","offers":[{"title":"1 Meter","offer_id":49505587953891,"sku":"SW108","price":8.99,"currency_code":"USD","in_stock":true},{"title":"3 Meters","offer_id":49505588478179,"sku":"SW109","price":9.99,"currency_code":"USD","in_stock":true},{"title":"5 Meters","offer_id":49505588510947,"sku":"SW110","price":10.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/7594\/8771\/files\/IMG-8588.png?v=1789488858","url":"https:\/\/renewspark.com\/products\/battery-pack-heat-shrink-wrap-70mm-blue","provider":"RenewSpark","version":"1.0","type":"link"}