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Insulator Rings | Lithium Battery Paper with Adhesive Backing



Keep your lithium battery safe with our Insulator Rings. These adhesive-backed paper rings act as insulators, preventing damage and extending your battery's life. Stay powered and protected with ease.


  • 18650  x 1000 Per Set ($15) 
  • 21700 x 500 Per Set ($10) 
  • 26650 x 250 Per Set ($5)


  • PRODUCT TYPE:  18650 | 21700 | 26650 lithium battery insulator ring, highland barley paper with adhesive backing
  • 18650 PRODUCT SIZE: Outer ring diameter: Φ17.8mm(0.7"). Inner ring diameter: Φ10.5mm(0.41"). Thickness: 0.2mm.
  • 21700 Size: Outer ring diameter: Φ21mm(0.82"). Inner ring diameter: Φ12mm(0.47"). Thickness: 0.2mm.
  • 26650 Ring Size: Outer ring diameter: Φ26mm(1"). Inner ring diameter: Φ14mm(0.55"). Thickness: 0.2mm.
  • ADVANTAGES: Our insulator rings enhance the safety of your 18650 | 21700 | 26650 lithium batteries. They are waterproof and heat-resistant, have an adhesive backing, and are easy to peel and paste.
  • ADVANTAGES: Battery insulator rings offer good insulation, wear, corrosion, and tear resistance. They are designed explicitly for 18650 | 21700 | 26650 batteries and prevent short circuits.



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