INSULATION PAPER RING 21700 IMPORTED (4810)

The Insulation Paper Ring 21700 Imported (4810) is a premium-grade electrical insulation component designed specifically for 21700 lithium battery cells. It provides excellent insulation protection between battery terminals and external metal parts, helping to prevent short circuits and improve overall battery safety. Made from high-quality imported insulation material, it offers strong heat resistance, durability, and long service life. This insulation ring is widely used in EV battery packs, energy storage systems, power banks, and DIY lithium battery assemblies to ensure safe and reliable cell protection.