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MegaEIS™
ME-42SL400x80
Bi-Directional Workstation
for Fuel Cells, Electrolyzers & Batteries
The MegaEIS™ ME-42SL400x80 is a bi-directional workstation engineered for advanced testing of fuel cells, electrolyzers, and high-current battery modules. Featuring a combined source/load architecture, it handles up to 400 A and 80 V.
With 42 fully synchronized measuring channels, the system delivers true parallel EIS data across the entire assembly. This enables seamless, continuous charge and discharge cycling without switching external hardware, precisely capturing real-time impedance shifts even under aggressive dynamic loads.
Kolibrik MegaEIS System Introduciton
See Unboxing, introduction to features, and practical live measurement demonstration of MegaEIS System.
Key Features
- Designed for advanced fuel cell stack, electrolyzer, and battery module R&D
- Bi-directional source/load architecture for continuous charge/discharge cycling
- Stack current up to ±400 A
- Stack voltage up to 80 V
- Maximum power capacity up to 32 kW
- EIS measurement one cell gradually or all cells simultaneously
- High-precision current sensing of both DC and AC components
Deployment Scenarios
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High-Current Battery Module Cycling: Execute dynamic charge and discharge profiles on low-voltage, high-current battery modules. True parallel EIS captures state-of-health (SoH) variations across all 42 cells simultaneously during active operation, eliminating multiplexing delays and the need for manual probe reconnection.
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Reversible Fuel Cell (rSOC) Validation: Evaluate cell stability and degradation by seamlessly alternating between power generation and electrolysis modes. The bi-directional hardware allows you to run continuous cyclic profiles and accurately measure impedance shifts without breaking the circuit or reconnecting cables.
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High-Current Transient Diagnostics: Monitor the stack's response to severe power surges up to 400 A. The integrated low-impedance current sensor and fully synchronized architecture ensure highly accurate measurement of both AC and DC current components, free from the parasitic effects typical of external boosters.
Technical Parameters
| Power supply | 110 … 240 V AC / 50 … 60 Hz |
| Dimensions | Modular deign for 19“ rack cabinet |
| Protection rating | IP20 |
| Input voltage | 0 … 80 V |
| Total input current Total input current (internal + external load) |
Up to 400 A |
| Internal load current
|
0 … 400 A |
| Max. internal power dissipation | 32 kW |
| Cooling | Water |
| Sampling | 24-bit ADCs, low-noise 50/60 Hz filtered sampling
Up to 1.25 Msps for EIS measurements |
| Measurement resolution | 0.001% of selected range |
| Accuracy | Voltage: ≤ 0.1% of range + 0.1% of reading
Current: ≤ 0.1% of range + 0.5% of reading |
| Acquitions methods | Constant V, I, Open circuit, Manual control, Chronoamperometry, Chronopotentiometry, Linear sweeps, Polarization curves, Current interruption, Load cycling/profiling, EIS – electrochemical impedance spectroscopy, Programmable sequences of all available methods |
| EIS frequency | 1 mHz ... 100 kHz |
| EIS amplitude | Up to 20% of maximum internal current for < 1 kHz |
| 2× voltage probe with EIS | Up to ± 200 V |
| EIS channel voltage range | ± 5 V (max. voltage span over one EVM8 module: 24 V / each 8 channels) |
| Number of EIS channels | Up to 40+2 (limited by max. voltage) 8 channels per one module |
| Connection | USB 2.0, Ethernet |
| Software | Control software for MS Windows
Features: measurement setup and control, data acquisition, processing and visualization, pascal or python scripting, remote control by TCP/IP server for integration with top-level control system, examples for remote control using Python or LabVIEW. |
If these variants do not suit you, please contact us, we offer customized solutions!
Documentation
Software
To run your experiments, you’ll use the application CVM Manager – our measurement and control app that manages everything from workstation setup to real-time data acquisition and visualization. Just connect the MegaEIS System, choose your method, and let the science begin.
High-Power Fuel Cell & Electrolyzer Testing
Want to learn more about the solution, use cases, and references related to fuel-cell or electrolyzer testing? In our portfolio we have a solution for all scenarios including SOFC, etc.
High-Power Battery & Packs Testing
Want to learn more about the solution, use cases, and references related to battery-oriented testing? In our portfolio we have a solution for any type of batteries including redox-flow, etc.