The ITECH IT2700 series regenerative battery simulator, especially the IT2705 multi-channel battery simulator, introduces an innovative design concept that provides an efficient, flexible, and safe solution for R&D and validation in all battery-related applications.

1. IT2705 Product Overview: More Than a Power Supply — A Battery Beyond Expectation

The ITECH IT2705 is a highly integrated, modular DC power analysis platform designed for dynamic power consumption measurement, battery behavior simulation, and power characteristic research in R&D testing.

It integrates multiple functions — DC power supply, electronic load, arbitrary waveform generator, oscilloscope sampling, and data recording — all within a single platform. With a graphical user interface, users can easily perform complex test processes without secondary development.

Key Features:

1.    Modular design: Supports up to 20 module types (including DC source, regenerative load, bidirectional source, SMU modules). Up to 8 modules can be installed, with each channel independently controlled and isolated.

2.    High-precision simulation: Provides precise voltage and current output/measurement, allowing accurate setting of battery internal resistance models.

3.    Comprehensive test functionality: Integrates LIST programming, sequence output, battery testing/simulation, arbitrary waveform definition, sine, and sweep functions — enabling full power analysis without additional instruments.

4.    Graphical operation interface: 7-inch color display supports real-time voltage, current, and power waveform display and analysis. Menu-guided settings simplify operation. Built-in web control allows full remote operation through a standard browser.

5.    High-speed sampling and data logging: Voltage and current sampling rate up to 200 kSa/s (oscilloscope mode). Supports multi-channel synchronized recording over seconds, minutes, hours, or even days. Built-in datalogger enables long-term recording with sampling intervals as short as 20 μs.

6.    Built-in EIS functionality: Integrated electrochemical impedance spectroscopy (EIS) capability automatically generates Nyquist and Bode plots when paired with the IT27814 SMU module.

2. Core Application Scenarios in Battery Testing

The IT2705 plays an important role across the entire battery industry chain. Below are several representative applications:

(1) BMS Testing and Verification

The Battery Management System (BMS) is the "brain" of the battery pack, directly determining system safety and performance. The IT2705 is an ideal tool for comprehensive BMS validation.

·             Charge/discharge management strategy testing: Simulate single or multiple cells to verify the BMS protection logic under overcharge, over-discharge, overcurrent, and short-circuit conditions.

·             SOC calibration: Simulate precise voltage curves under different states of charge (SOC) to verify the BMS’s SOC estimation algorithm.

·             Balancing function testing: The IT2705’s multi-channel design enables simulation of cell inconsistencies (e.g., voltage differences) to test active or passive balancing performance.

·             Communication testing: Combined with upper computer software, IT2705 can simulate battery voltage and current while communicating with the BMS via CAN bus for closed-loop validation.

(2) Battery Formation and Capacity Grading

At the final stage of battery production, charge/discharge cycles are required to activate performance (formation) and to classify cells (capacity grading). Traditional resistor-based discharge methods waste large amounts of energy.
The IT2705’s regenerative load function can feed discharge energy back to the grid, significantly reducing electricity costs and enabling greener production.

(3) Testing for Portable and Battery-Powered Devices

For products such as smartphones, laptops, and power tools, the IT2705 can replace real batteries to conduct:

·             Dynamic power consumption testing: Simulate different battery states (standby, full load, sleep) to analyze power consumption behavior.

·             Extreme condition testing: Safely simulate sudden voltage drops or internal resistance variations at high/low temperatures without the explosion risk of real batteries.

·             Lifetime testing: Use sequence functions to simulate thousands of charge/discharge cycles for accelerated aging tests.

(4) New Energy Vehicle Applications

·             12V/24V Lead-acid/Lithium Battery Replacement & Testing: Replace real 12V batteries to test low-voltage systems or the low-voltage supply side of high-voltage BMS.

·             DC-DC Converter Testing: Use the bidirectional source as a programmable load (sink mode) at the converter’s low-voltage output to simulate dynamic load conditions, testing voltage stability, ripple, efficiency, and transient response.

3. Summary of Advantages

Compared with traditional testing solutions, using the ITECH IT2705 for battery testing offers clear advantages:

·             Safety and reliability: Eliminates leakage, fire, or explosion risks associated with real batteries — ideal for destructive and extreme condition testing.

·             Flexibility and efficiency: Simulates any type of battery or SOC condition instantly, greatly shortening R&D cycles.

·             Energy saving and environmental protection: Regenerative design minimizes test cost and reduces lab cooling load.

·             Precision and repeatability: Avoids measurement errors caused by real battery degradation, ensuring consistent and comparable results.

·             Simplified system design: Multi-channel architecture simplifies complex multi-cell test setups.

Conclusion

The ITECH IT2705 regenerative battery simulator, with its outstanding bidirectional performance, high-precision simulation, and multi-channel design, has become an indispensable tool for modern battery technology R&D, production, and validation.

It is more than just an instrument — it is a powerful testing platform that helps engineers overcome testing bottlenecks, accelerate product development, and drive the battery industry toward safer and more efficient innovation.