The IR Testing Machine (Big)

is a high-precision internal resistance (IR) and voltage testing system designed for large-scale lithium battery testing and quality control. It is widely used in battery manufacturing units, EV battery assembly lines, ESS production, and R&D laboratories to accurately measure internal resistance and voltage, which are critical parameters for battery safety, performance, and life expectancy.

This machine helps identify weak cells, poor welds, aging issues, and cell mismatch at an early stage. With its fast measurement speed, high accuracy, and stable performance, it is ideal for high-volume testing of lithium-ion and LiFePO₄ cells and battery packs.

Built with industrial-grade components and advanced safety protection, the big IR testing machine ensures reliable operation, long service life, and consistent test results.

Key Features

Function: Internal Resistance (IR) & Voltage testing

Compatible Batteries: Li-ion & LiFePO₄ cells and packs

Testing Speed: Fast, suitable for mass production

Accuracy: High-precision measurement

Display: Clear digital display with easy operation

Protection: Over-voltage, over-current & short-circuit protection

Design: Heavy-duty, industrial-grade (Big model)

Key Benefits

Ensures battery safety and consistency

Early detection of faulty or aging cells

Improves battery pack performance & lifespan

Suitable for high-volume, industrial use

Essential tool for professional battery manufacturing