As the global shift toward decarbonization and electrification accelerates, battery safety and performance have become key benchmarks of industry competitiveness. Driven by increasingly stringent regulations and the rapid growth of new energy vehicles and energy storage industries, third-party testing demand for battery cells, modules, and battery packs is experiencing explosive growth.

In 2025, global energy storage battery shipments are expected to continue rising at a rate exceeding 80%, with a new generation of emerging enterprises showing particularly strong momentum. Under the dual drivers of regulatory enforcement and industrial expansion, the energy storage battery sector is entering an unprecedented phase of market growth and escalating testing requirements.

Against this backdrop, how to conduct efficient and accurate battery data acquisition under national standards has become a core challenge for testing institutions. This article takes you inside Laboratory A, a leading domestic third-party quality service organization, to see how NGI’s data acquisition system has become the “all-round guardian” of its national battery standard testing.

Customer Profile: The Rigorous Standards of an Industry Gatekeeper

Laboratory A is a national-level testing and certification body serving multiple sectors including energy storage, automotive, and home appliances. It enjoys broad international recognition and is one of the CB laboratories in Asia with the most accredited standards coverage. Its services span standards development, product certification, system certification, and metrology calibration, delivering end-to-end quality assurance solutions.

With the implementation of new national standards such as GB/T 36276-2023 — Lithium-Ion Batteries for Electrical Energy Storage, the laboratory’s testing challenges have become increasingly complex. Testing is no longer limited to single-parameter measurements but now requires high-precision, highly synchronized, 24/7 acquisition of thousands of voltage, current, and temperature signals across electrical, mechanical, and environmental test dimensions. This demands test systems with exceptional synchronization, stability, and scalability—much like a “symphony conductor” that cannot afford a single misstep.

NGI

A Fully Integrated Hardware-Software Test Architecture

After multiple rounds of technical evaluation and on-site validation, Laboratory A selected NGI’s NXI data acquisition and measurement system. Built around NXI modular instrumentation, the solution forms a highly flexible and scalable test platform that fully meets the stringent national standard requirements for multi-channel, high-synchronization, and wide-range measurements.

Key System Advantages:

High Accuracy and Wide Measurement Range

• Voltage accuracy ≤ 0.05% F.S.

• Current accuracy ≤ 0.2% F.S.

• Temperature accuracy ≤ 0.5 °C

With external voltage dividers and sensor expansion, the system supports kV- and kA-level measurements, covering all test levels from single cells to full battery packs and battery clusters.

Multi-Channel Synchronous Acquisition

• Standard configuration supports 24+ channels synchronized channels (8 channels for voltage/current + 16 channels for temperature)

• Expandable to 400+ channels as required

• Enables synchronized monitoring of all cell voltages and critical temperature points

High-Speed Continuous Data Logging

• Sampling rate up to 100 kS/s per channel

• Supports synchronized high-speed logging of voltage, current, and temperature

• Data can be directly saved in CSV and other standard formats for third-party review and analysis

High-Voltage Isolation for Safety and Reliability

• Features 1500V high-isolation design, ideal for high-voltage battery pack testing

• Ensures the safety of both personnel and equipment in demanding test environments

Further reading: Want to learn more about the successful application of NGI in BMS testing?

Customer Case | Global Pass BMS Testing Solution, Empowering Global TOP Institutions' Efficient Certification

Appendix: Main Product Configuration