Battery pack components
Everything to build and rebuild battery packs
PVC shrink wrap, polyolefin heat-shrink tubing and wire, sold by size so you get the exact fit for your pack.
- 1Measure the packWidth of the wrap when laid flat.
- 2Pick the wire gaugeMatch the gauge to the load.
- 3Wrap and shrinkPVC for packs, polyolefin for wires and joints.
Shop components

Polyolefin Shrink Tubing
Tough, flexible tubing for wires, joints and cells.
Shop Polyolefin Shrink TubingFind your size
Type
Wrap a string around the pack, then measure it. We show the sizes that fit.
Gauge
Color
Spool
Building packs in volume?
Bulk rolls and spools quoted on request.
Component questions
How do I measure PVC shrink wrap?
PVC wrap is sold by its flat width. Measure around your pack, divide by two and add a little room so the wrap slides on before shrinking.
PVC or polyolefin: which should I use?
PVC wrap is the usual outer cover for battery packs. Polyolefin tubing is tougher and more flexible, so it suits wires, joints and single cells.

