Ultra-precision battery cycler

New BCS-900 Battery Cycler series (recommended).

Powerful, modular, ultra-precise battery cyclers with fully native EIS capability

BCS-900 series is a modular battery cycling system designed to meet the needs at every level of the battery value chain, from R&D to pilot production, from production testing to quality control. Made up of three modular options (BCS-905, 910 and 915), these advanced battery cyclers offer 8 independent channels with a maximum current of ±150 mA, ±1.5 A and ±15 A, respectively per channel.

The BCS battery cycler series: High-end cyclers for demanding needs.

Building on BioLogic’s established reputation for reliable instrumentation, the BCS-900 Battery Cycler represents a revolutionary leap forward. This system merges unmatched performance with a user-centric design owing to the groundbreaking BT-Lab® Suite software, the latest innovation in battery testing technology. This series of ultra-precise cyclers features five current ranges, 18-bit current and voltage resolution, high-precision coulometry, fast bandwidths (rise and fall times), smart sampling, interfacing with external equipment and temperature probes, amongst many other high-end functions.

The result is a powerful, modular system suitable for any organization specializing in battery testing and research, from industry to academia, quality control to certification.

Streamlining Versatility: Excel at every level of the battery value chain.

The BCS-900 series offers a modular approach to battery cycling, providing researchers and industrial users with the perfect tool for their needs. Built upon a robust, high-end platform, each module delivers targeted current ranges for specific applications:

  • BCS-905: The Micro Manager – Ideal for coin cells and other miniature batteries, the BCS-905 boasts a maximum current of ±150 mA per channel.
  • BCS-910: Powering R&D and Pilot Lines – Perfectly suited for research labs and pilot production, the BCS-910 offers a mid-range current capacity of ±1.5 A per channel.
  • BCS-915: The High-Performance Workhorse – Designed for demanding high-power testing, the BCS-915 delivers a maximum current of ±15 A per channel. It also features parallel channel connectivity, enabling users to achieve even greater outputs of ±30 A, ±60 A, or even ±120 A.

This modular design gives you the flexibility to choose the ideal tool for your specific needs, while the shared high-end platform ensures consistent performance across the entire BCS-900 series.


Precision, accuracy & modularity: three reasons to choose the BCS-900 battery cycler series.

With an 18-bit current and voltage resolution, the BCS-900 battery cycler series has been developed to generate high-precision high-accuracy measurements. Five current ranges yield excellent resolution down to 0.2/2/20 nA. Moreover, a large voltage range of 0 – 9*/10 V (915*) with a 40 µV resolution offers a wide potential window for demanding applications with an outstanding resolution.

An optional built-in FRA (Frequency Response Analyzer) is available for every BCS-900 module enabling native and fully integrated Electrochemical Impedance Spectroscopy (EIS) experiments over the frequency range of 10 kHz to 10 mHz on each channel in either galvano or potentio mode. EIS measurements are as fast and precise as those obtained with our research-grade equipment – no compromise on quality has been made. With EIS, the evolution of your batteries’ parameters can be precisely determined (SOC, SOH, internal resistance Ri). Want to know more about Electrochemical Impedance Spectroscopy and why it is use in for battery testing? Click here.

The instrument offers a fast data acquisition with a 1 ms sampling rate and time base. Learn more about data of interest to work more efficiently.

The BCS-900 system is designed to allow you to simply and autonomously add modules to your system. Thanks to their modularity and compatibility, different BCS-900 modules can be combined in a single cabinet, in one of 4 sizes (6U, 12U, 24U and 38U), allowing users to build a custom-made battery cycling system that meets their exact requirements and can be easily upgraded for the future, if necessary.


Built-in redundant data storage

Battery cycling tests are long term and high stakes and the BCS-900 series is the only battery cycler on the market with an on-board SSD drive, ensuring data is never lost. A dedicated and embedded operating system and local storage redundancy guarantees demanding data processing needs are met. Automatic or manual actions can be defined with safety limits and built-in security features to ensure the integrity of tests is never compromised.

BT-Lab® Suite: Comprehensive from reliable tests to efficient analysis

The BCS-900 series Battery Cyclers feature BT-Lab® software Suite, the latest advancement in battery testing technology. This groundbreaking software integrates state-of-the-art features to enhance control, monitoring, and analysis capabilities for rigorous battery testing applications.
Ensuring the utmost reliability in cycling procedures, continuous monitoring throughout testing is provided by our embedded BT-Test™, guaranteeing consistent and accurate results. Efficiency in data analysis is further optimized through the advanced BT-Analysis™ software, enabling rapid and insightful interpretation of complex datasets. Specifically engineered for battery testing, essential features such as native EIS provide researchers and engineers comprehensive tools to delve deeper into battery performance and behavior.

BT-Test™: Superior performance in battery testing software.

BT-Test™ integrates cutting-edge features that empower researchers with unparalleled control and flexibility in designing, running and monitoring cycling experiments. Researchers can effortlessly control variables to tailor experiments to their exact specifications, ensuring the acquisition of highly accurate and insightful data.

BT-Analysis™: Maximum efficiency with automated batch data processing.

For demanding battery data processing, in-depth and automated analysis is completed with BT-Analysis™. Analyses adapt to specific needs with unmatched flexibility. Access to critical data anytime, anywhere – online or offline – ensures key data is never missed. BT-Analysis™ empowers detailed analysis by displaying data in various formats, including vs. cycles, loops, and steps. It even displays application-oriented graphs, tables, and statistical tools in order to gain a deeper understanding of battery behavior.

Work anywhere

The BT-Lab® Software Suite offers an unprecedented amount of flexibility, giving researchers more freedom to access their data. Using BT-Test™, Test Run monitoring can be as simple as opening a web browser. With BT-Analysis™, live data management and processing can be accessed remotely.



FSR: Full Scale Range


BCS-905 battery cycler BCS-910 battery cycler BCS-915 battery cycler
Channels per module 8
Range 0 V to 10 V 0 V to 9 V
Control resolution 150 µV
Measurement resolution 40 µV (18 bit)
Accuracy <±0.01% of value ±0.3 mV
Slew rate 150 kV/s 3 kV/s
Max (continuous) per channel ±150 mA ±1.5 A ±15 A;

±30 A, ±60 A or ±120 A, with channels in parallel

Ranges 5: 100 mA down to 10 µA 5: 1 A down to 0.1 mA 5: 10 A down to 1 mA
Control resolution Down to 0.8 nA Down to 8 nA Down to 80 nA
Measurement resolution Down to 0.2 nA (18 bit) Down to 2 nA (18 bit) Down to 20 nA (18 bit)
Accuracy < 0.05% of value ±0.015% of FSR < 0.05% of value ±0.015% of FSR

< 0.1% of value ±0.015% of FSR (1 A range)

< 0.05% of value ±0.015% of FSR

< 0.1% of value ±0.015% of FSR (1 A range)

< 0.3% of value ±0.04% of FSR (10 A range)

Built-in Optional on each module (multiplexed across 8 channels)
Range 10 kHz – 10 mHz
Acquisition time 1 ms
Time base 1 ms
Additional measurement
Thermocouple N/A K Type on each channel -25 °C +200 °C with accuracy of ±2 °C
Cell connection
4 terminal leads + Guard 4 terminal leads
Height 1U 2U 4U
Weight 6.5 kg 11 kg 24.5 kg
Power consumption 60 W 220 W 1700 W


What should I do if I have an issue?

If you have any questions or if any problem occurs that is not mentioned in this website, please contact your local retailer.  Your provider’s highly-qualified staff will be glad to help you.

Should you need to contact us to communicate an error, we will need to have specific information concerning your hardware and software configuration.

Please keep information on the following at hand:

  • Description of the error (the error message, mpr file, picture of setting or any other useful information) and of the context in which the error occurred. Try to remember all the steps you had performed immediately before the error occurred. The more information on the actual situation you can provide, the easier it is to track the problem.
  • The serial number of the device located on the rear panel device.
  • The software and hardware version you are currently using. On the Help menu, click About. The displayed dialog box shows the version numbers.
  • The operating system on the connected computer.

Where can I download the software to control my instruments?

To download BT-Lab® Software Suite, please consult the software support page:

BT-Lab® Software Suite


You may want to complete your set-up with.

The following equipment may help you with your research. A full range of battery sample holders are available from BioLogic. They are compatible with all our battery cyclers. See a selection below and go and visit the BioLogic accessory pages to find out more.

Greater Scope. Increased flexibility.

Does your experiment require faster acquisition time, negative voltage or an extended EIS frequency range? Try looking at our MPG battery cycler series for research-grade battery testing in a rack of up to 80 channels.

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