High Precision Lithium Battery Internal Resistance Meter 18650 Voltage Resistance Detection Tool Digital Tester Analyzer for Li-ion NiMH NiC

This high-precision battery internal resistance meter accurately measures voltage and internal resistance of 18650 and other lithium-ion, NiMH, and NiCd cells. Designed for hobbyists, technicians, and engineers, it provides quick health assessment of rechargeable batteries. The compact handheld device features a clear digital display, 4-wire Kelvin measurement for accuracy, and supports multiple battery chemistries. Ideal for sorting cells, building battery packs, and preventive maintenance. Includes test leads and user manual.