Product Overview

The Cell & Battery Pack ACIR Testing Laboratory is a complete educational and industrial validation platform designed for measuring the AC Internal Resistance (ACIR) of lithium-ion cells, modules, and battery packs.

The laboratory combines the Hioki BT3562A Battery HiTester, professional Kelvin fixtures, battery test accessories, structured laboratory experiments, and instructor-led manuals to deliver hands-on training in battery characterization, production quality control, battery pack diagnostics, and EV battery validation.

Using a precise 1 kHz AC measurement with a four-terminal Kelvin technique, the system minimizes contact resistance and provides highly repeatable measurements for battery research and quality assurance.



The setup enables students, researchers, and engineers to practically study:

  • AC Internal Resistance (ACIR) measurement principles for lithium-ion cells and battery packs
  • Four-Probe Kelvin measurement technique for high-accuracy low-resistance testing
  • Internal resistance characteristics of cylindrical, prismatic, and pouch cells
  • Battery pack resistance measurement and validation
  • Resistance contribution of busbars, weld joints, connectors, and pack interconnections
  • Cell sorting and grading based on ACIR values
  • Battery manufacturing quality inspection and acceptance testing
  • Detection of defective cells and abnormal resistance variations
  • Battery pack assembly quality validation
  • Battery ageing and health assessment using ACIR measurements
  • Impact of internal resistance on battery performance, efficiency, and heat generation
  • Industry-standard battery testing methodologies for EV and energy storage applications


Learning outcomes using this platform, learners can:

  • Understand the significance of AC Internal Resistance in battery performance and safety
  • Perform accurate ACIR measurements using the Four-Probe Kelvin method
  • Compare the internal resistance characteristics of different lithium-ion cell formats
  • Perform cell sorting and grading for battery pack assembly
  • Evaluate battery pack quality through ACIR measurements
  • Identify high-resistance weld joints, connectors, and interconnections
  • Detect faulty cells and manufacturing defects using resistance analysis
  • Understand battery quality control procedures followed in battery manufacturing industries
  • Interpret ACIR measurement results for battery diagnostics and performance evaluation
  • Develop hands-on skills required for EV battery testing, manufacturing, and research laboratories


The platform integrates:

  • Hioki Battery HiTester BT3562A for high-precision AC Internal Resistance measurement
  • Four-Probe Kelvin measurement system for accurate low-resistance testing
  • Dedicated fixtures for cylindrical, prismatic, and pouch lithium-ion cells
  • Components to assemble a pack from cylindrical cells
  • Cell sorting and grading methodologies based on ACIR values
  • Industry-oriented laboratory experiments with comprehensive manuals
  • Safe battery testing practices and laboratory operating procedures
  • Practical learning environment for EV battery manufacturing, research, and quality assurance applications