HVBode high-voltage EIS analyzer for HV battery pack and powernet impedance measurement

High Voltage Impedance Analysis

Electrochemical Impedance Spectroscopy (EIS) Impedance measurement of the entire HV-Battery or HV-Powernet up to 1000V

Electrochemical Impedance Spectroscopy (EIS), a frequency-based stimulus-response technique, delivers deep insights into the internal behavior of high-energy systems, making it essential for early fault detection, degradation analysis, and state-of-health monitoring in batteries and fuel cells.

Unlike conventional equipment, HV BODE’s High Voltage EIS Test Systems are designed to meet the demands of modern e-mobility. They enable precise impedance and phase measurements on entire battery packs and BEV systems up to 1000 V, currently unmatched in the market.

HV-Battery Impedance & Phase

HV battery impedance and phase measurement diagram

Vehicular HV-Powernet

Vehicular high-voltage powernet schematic

Why high-voltage EIS matters

Modern battery packs and high-voltage (HV) systems operate far beyond the range of typical low-voltage lab tools. That makes it difficult to test them safely or accurately with conventional analyzers. HVBode is designed specifically for these real-world conditions—handling high voltages, wide frequency ranges, and isolated grounding so teams can work safely in labs, climate chambers, or on production lines.

By looking at impedance spectra, engineers can uncover what’s happening inside a battery long before issues show up in basic voltage or current checks. This makes it possible to spot early signs of aging, detect anomalies, and better understand electrochemical behavior. Teams rely on this insight to compare new cell designs, validate wiring and harnesses, monitor end-of-line performance, and even assess battery health in the field.

Whether you're testing a new system design, tightening up production quality checks, or troubleshooting returned units, having consistent, repeatable measurements at full pack voltage reduces guesswork and speeds up root-cause analysis. HVBode is built as a portable, standalone tool with built-in visualization and export features. It also supports API integration, so you can plug it directly into your existing MES or QMS workflows when needed.

In practice, teams use it across the entire lifecycle: aligning R&D with industry and OEM standards, screening for defects during production, and supporting after-market use cases like state-of-health estimation, second-life evaluation, and high-voltage diagnostics. If you need more technical details—like specifications, safety standards, or extended bandwidth options—you can reach out with your requirements.

If you're exploring different solutions, it’s worth requesting a datasheet or a live demo. The team can also walk you through trial or rental options, pricing, and how the system would fit into your current setup.

In automotive and aerospace projects, engineers use impedance data to compare different designs under controlled conditions, while quality teams connect production data with real-world reliability. The same approach also helps service teams justify battery health assessments, make warranty decisions, and safely repurpose modules in circular economy applications.

Finally, the software makes it easier to share insights across teams. With clear visualizations—like magnitude, phase, and complex-plane plots—both specialists and system-level engineers can understand the results. And when automation matters, API integration helps reduce manual work while keeping everything traceable within your internal processes.

Testing in Climatic Chamber (-28°C to 65°C)

HVBODE Unit

Features

Portable HV measurement for electrochemical impedance spectroscopy (EIS), Nyquist and Bode-style plots, API integration, and EV battery pack testing up to 1000 V—built for labs, production lines, and field diagnostics.

High Voltage Testing

Industry-leading testing capabilities up to DC 1000V

EV Compatible

Specifically designed for BEV & PHEV applications

Portable Design

Lightweight & mobile for flexible testing scenarios

Advanced Visualization

Comprehensive plotting including Magnitude, Phase, Polar, and Nyquist diagrams

Flexible Integration

Use as standalone measurement device or integrate via API

Standalone & Simple to use

Standalone measurement device with simple to use interface

Uses & Implementations

In R&D

  • Testing Norms & Standards
    • ISO21498
    • VW80300
    • MBN11123
  • Validation of HV-Powernet Architecture
  • Analysis of Resonances
  • Investigation of aging effects
  • Benchmarking analysis
In R&D

In Production EoL-Tests

  • Catch HV-Powernet abnormalities and drift
    • Errors in the assembly process
    • Faults in individual components
  • Identify Location of fault
  • Start of Lifecycle tracking
  • QMS Integration
In Production EoL-Tests

In After Market

  • Battery analysis (SoH)
  • Battery 2nd Life and Recycling
  • Rating for Used car Market
  • HV-Component aging measurements
  • HV-Diagnostics
  • EMV validation
In After Market

Technical Data

Summary specifications for the HVBode high-voltage EIS system. Extended bandwidth, accessories, and calibration options are available on request.

Max. Voltage1000 V
Bandwidth10Hz – 800kHz *a
Impedanz1mOhm – 1kohm
Size / Weight62 x 48 x 36 cm / 25 kg
HV GroundingIsolated grounds (IG)
Safety Standards DIN EN 61010-1
EN ISO 13849-1
*a: for extended Bandwidth or special modifications, please contact us

Applications

Aeronautics

High voltage testing for aerospace applications

After Market Battery and HV-Powernet

State of health measurement, Battery testing and validation solutions

Automotive

EV and automotive electrical system testing

Research & Development

Advanced R&D testing capabilities

Get In Touch

We'd love to hear from you! Request a demo or get in touch with any questions you may have about our high voltage impedance analysis solutions.
  • Request Datasheet
  • Rent / Test a system
  • Buy / Quotation for system,
  • Request a meeting

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