Battery Shrink Wrap for 18650 (sold per pair)

Each piece is a heat-shrink sleeve that you use to rewrap lithium-ion batteries when their original insulation gets damaged, scratched, or peeled off. The wraps provide both safety (preventing short circuits) and a chance for customization with different colors.

How it works:

1. Remove the old damaged wrap.
2. Slide the new sleeve over the battery (don’t forget the insulating ring on the positive side).
3. Use a heat gun or hair dryer to shrink it tightly around the cell.