18650 BATTERY GASKET (50 PCS 1S)

18650 Battery Insulation Gasket

The 18650 battery gasket is a heat-resistant insulation ring placed on the positive terminal of 18650 lithium-ion batteries. It provides protection against short circuits during assembly and spot welding.

Key Features:

• Material: Insulating fiber paper / polyimide (heat-resistant)

• Outer Diameter: 18mm

• Inner Diameter: 10mm

• Thickness: ~0.3mm

• Protects battery terminals from short circuits

• Essential for battery pack assembly and spot welding

Applications:

• 18650 battery pack building

• Spot welding protection

• Battery DIY and repairs

• Electric bikes, power banks, and tools