18650 Battery Insulation Paper Hollow Pack 4S Hole 1pcs

From the shop's description

18650 Battery Insulation Paper Hollow Pack 4S Hole 1pcs This 4s Electrical Insulating Adhesive Mat for Battery Cell terminal Insulation is a cardboard paper for combine two 18650 battery insulator. Better protection to avoid short circuit on batteries. Easy peel and stick application. The Outer Ring Diameter is 17mm whereas Inner Ring Diameter is 10mm Thickness: 0.25mm 1 Pcs Battery Insulators Adhesive Paper Rings. How to use? Take off each insulation paper from base paper. Put and stick upper hollow adhesive insulation paper on the top of battery positive. Put and stick lower solid adhesive insulation paper on the negative. Then, you can weld Ni tape or Ni-plated steel plate with positive, negative to make the battery pack. Note: Colors in the image may vary from the Actual Product. Features : Better protection to avoid short circuit on batteries. Perfect Build for DIY battery packs! Package Includes : 1 x 4s Hole Electrical Insulating Adhesive Mat for Battery Cell terminal Insulation Compatibility 18650/18500 lithium battery Type 4 Cell No. of Mat in Package 1 Outer Ring Diameter(mm) 17 Inner Ring Diameter(mm) 10 Thickness (mm) 0.25 Color Dark Green Shipment Weight 0.002 kg Shipment Dimensions 12 × 8 × 3 cm