INSULATION RING – 18650 (–) 3P RING

is a precision-made insulating gasket designed for 18650 lithium-ion battery cells arranged in a 3P (three cells in parallel) configuration. It is installed on the negative (–) terminal to provide reliable electrical insulation and improved safety during battery pack assembly.

This insulation ring helps prevent short circuits by isolating the negative terminal from nickel strips, bus bars, and nearby conductive components. Manufactured from high-quality, heat-resistant insulating material, it performs reliably during spot welding and under high-current operating conditions.

Engineered for a perfect fit on 18650 cells, the ring is lightweight, easy to install, and stays securely in place—making it an essential safety component for professional and DIY lithium-ion battery pack builders.

Key Features

Cell Compatibility: 18650 lithium-ion battery

Configuration: 3P (parallel)

Terminal Protection: Negative (–) insulation

Material: Heat-resistant, durable insulating material

Fit: Precise and secure on 18650 terminals

Function: Prevents electrical short circuits

Benefits

Enhances battery pack safety

Minimizes risk of negative terminal shorting

Protects cells during welding and operation

Easy to install and lightweight

Reliable insulation for long-term performance