FLYZ-8101 Battery Impedance Spectrum Analyzer
High-precision, wide-frequency, compact, and ultra-cost-effective AC impedance spectroscopy (EIS) measurement and analysis solution. Suitable for quality control and R&D analysis of all battery types — from coin cells to large energy storage batteries.
Core Features
Precision Hardware
- True wide-band precision measurement: frequency range 7.8 kHz ~ 0.014 Hz, covering the full spectrum from ohmic impedance to Warburg diffusion impedance.
- High precision & anti-interference: Kelvin 4-wire method with special inductance-canceling cable design eliminates reactance errors, ensuring accurate measurement of internal resistance ≥ 0.6 mΩ.
- Broad compatibility: 1.45 V ~ 4.5 V voltage range, standard long cables and multiple accessories, supporting coin, cylindrical, pouch, prismatic, blade cells and modules.
Easy Operation
- Battery reverse/incorrect connection protection.
- Three-color indicator LEDs (acquisition / error / power) for clear status display.
- RS-232 and CAN dual interfaces, compatible with various industrial control environments.
Powerful Software & Analysis
- Integrated AnalyZis software: combines KK verification, DRT (Distribution of Relaxation Times), ECM (Equivalent Circuit Model) fitting and other professional features.
- Full-process automated analysis: one-click from data reliability verification to generating professional analysis reports, dramatically improving efficiency.
- 数据可保存至云端,便于团队协作与建立电池"全生命周期健康档案"。
Technical Specifications
| Parameter | Specification |
|---|---|
| Operating Temperature & Humidity | 0°C ~ 40°C, relative humidity ≤80% (no condensation) |
| Power Supply | 24V DC |
| Communication Interface | RS-232, CAN |
| Measurement Functions | Voltage, ACR, EIS |
| Battery Voltage Under Test | 1.45V ~ 4.5V |
| Maximum Voltage at Measurement Terminal | 6.0V |
| Test Cable | Standard long cables and various accessories |
| Safety Design | Battery reverse and incorrect connection protection |
| Parameter | Specification |
|---|---|
| Measurement Range | 1.45V - 4.5V |
| Measurement Channel | [Sample+] and [Sample-] terminals |
| Resolution | 0.1mV |
| Error | ±4mV (0˚C ~ 40˚C) |
| Measurement Speed | 1.0s |
| Over-range Display | Voltage abnormality alert, impedance measurement disabled |
| Parameter | FLYZ-8101C | FLYZ-8101E |
|---|---|---|
| Measurement Range | 0.6mΩ ~ 350mΩ | 12mΩ ~ 27Ω |
| Error | ±0.05mΩ(0˚C ~ 40˚C) | ±0.5mΩ(0˚C ~ 40˚C) |
| Resolution | 1μΩ | 1μΩ |
| Measurement Speed | 10s | 10s |
| Measurement Frequency | 1kHz | 1kHz |
| Measurement Channel | [Sample+] and [Sample-] terminals, [Excitation+] and [Excitation-] terminals | [Sample+] and [Sample-] terminals, [Excitation+] and [Excitation-] terminals |
| Parameter | FLYZ-8101C | FLYZ-8101E |
|---|---|---|
| Frequency Range | 7.8kHz ~ 0.014Hz | 7.8kHz ~ 0.014Hz |
| Frequency Accuracy | ±1% | ±1% |
| Measurement Range | 0.6mΩ ~ 350mΩ | 12mΩ ~ 27Ω |
| Gear | 4mΩ, 8mΩ, 20mΩ, 100mΩ | 100mΩ, 400mΩ, 2000mΩ, 6000mΩ |
| Error | ±0.05mΩ(0˚C ~ 40˚C) | ±0.5mΩ(0˚C ~ 40˚C) |
| Resolution | 1μΩ | 1μΩ |
| Measurement Items | Impedance real part (Z’), imaginary part (Z’’) | Impedance real part (Z’), imaginary part (Z’’) |
Applications & Workflow
University Teaching
For electrochemistry principle teaching and battery experiment courses
Research Labs
For battery material research, performance evaluation and life prediction
Production QC
Rapid testing of battery consistency and factory quality
Energy Storage
Monitoring battery health status and performance in storage systems
Electric Vehicles
Evaluating EV battery system health status and lifespan
Service Centers
Diagnosing battery faults and evaluating post-repair performance
Measurement Workflow

FLYZ-8101 Overall Connection Diagram
Connect Instrument & Power
Ensure proper power supply to device
Connect Test Cable to Battery
Select appropriate test cable for battery type
Run Software Measurement
Select Voltage / ACR / EIS measurement mode
Get Analysis Report
Automatically generate professional analysis report
Resources & Support
RS232 Data Cable Driver
Driver for device-to-computer connection
Download Driver也可通过FTDIChip官方网站 https://ftdichip.com/drivers/vcp-drivers/ Download latest driver version
Safety & Warning Information
- Do not measure disposable (primary) batteries — this may damage the device.
- Battery Voltage Management: Monitor battery voltage during use to prevent over-discharge, fire, or damage.
- Check Cables: Ensure test cables are intact before use to avoid short circuits.
- Ensure Ventilation: Keep the device well-ventilated during operation to avoid overheating.
- Proper Power Supply: Use the specified 24V DC power supply only — avoid over/under-voltage.
- Professional Operation: The device should be operated by qualified technical personnel to prevent hazardous misuse.



