FNIRSI HRM-10 Battery Internal Resistance Tester Clamp – Kelvin Clip for 18650 / 26650 Cells 18650 This Flux for Copper-to-Copper Welding

This Flux for Copper-to-Copper Welding is specifically engineered for lithium battery builders who want to spot weld copper with confidence

Rebuilding compatible battery packs

Bluetooth connectivity

1 × Protective storage pouch

and essential safety features

FNIRSI HRM-10 Battery Internal Resistance Tester Clamp – Kelvin Clip for 18650 / 26650 Cells 18650 This Flux for Copper-to-Copper WeldingThe FNIRSI HRM 10 Tester Clamp is a professional grade Kelvin clip designed to measure internal resistance on cylindrical lithium ion cells like 18650 and 26650. With its round clamp design and 4 wire configuration, it provides stable and precise contact, reducing lead resistance for more accurate readings. Key Features: Authentic FNIRSI accessory for IR testing Kelvin four wire clamp ideal for use with internal resistance meters Compatible with round