THE PROBLEM
Some battery risks are hard to see until it is too late
Conventional monitoring does not always reveal internal battery changes early enough. In UPS and BESS environments, that can create reliability issues, maintenance blind spots, and elevated safety risk. A UPS or ESS string can only perform as well as its weakest battery. Capacity fade can remain hidden until runtime drops or the system fails.
THE CADEX SOLUTION
Earlier insight from deeper battery diagnostics
Cadex uses EIS-based battery modeling to estimate capacity, state-of-charge, and internal resistance without putting the battery through a long discharge test. This supports earlier action and stronger operational awareness.
HOW IT WORKS
Battery insight that can support monitoring and system design
For stationary power applications, the positioning is not just battery testing. It is earlier fault awareness, deeper visibility, and a better foundation for maintenance planning and system safety.
Scan the battery with EIS.
Compare the response to a battery matrix.
Use the result to pass, fail, monitor, or reassign the battery.
WHY IT MATTERS
What teams can do with the data
Use test results to plan replacement, reserve top batteries for critical systems, move weaker batteries to lower-demand applications, and document battery condition over time.
BENEFITS
Why this matters
Improve maintenance visibility.
Support earlier fault detection.
Reduce the chance of hidden battery problems.
Strengthen reliability planning.
Support safer operation in critical power systems.
Ideal for
UPS service providers, BESS integrators, battery system designers, utilities, infrastructure operators, and BMS development teams.
Speak With Cadex
Bring deeper battery insight to stationary power
Start the conversation with Cadex about improving battery visibility, maintenance awareness, and fault detection in stationary power systems.
Validating performance by EIS Test
Battery Check in Seconds
The battery is the weakest link in a chain that causes half of all system failures. Battery diagnostics has been lagging, but technology is available that observes capacity fade to fully use each battery with call to replace before failure.
The Spectro CM-24 tests battery health by modeling a battery against a matrix to secure Minimum Operational Reserve Energy (MORE) based on capacity, the leading health indicator.
Threshold Setting
Capacity pass/fail levels for deep-cycle batteries are commonly set to 60%. A PASS assures full day service; FAIL calls for replacement or lower tasks.
The Spectro CM-24 comes with a matrix of choice and ability to download other matrices from the Matrix Library. The matrices are kept in the CadexCloud, a web app that also stores test results and shares data with fleet supervisors.
How does Spectro™ work?
A frequency scan produces a Nyquist plot that models a battery against a matrix to extract capacity, state-of-charge (SoC) and other characteristics. The test is non-invasive and accuracy rests on the Matrix Integrity Level (MIL) that can be improved by scanning additional batteries of same-model but with diverse performances to capture all anomalies.
The EIS Direct-Drive tests batteries in 30 seconds with capacities of up to 300Ah. The battery is not agitated during testing and the compact test unit stays cool. Scientists predict that battery diagnostics will advance to Multi-Model EIS methods, a patented technology Spectro™ devices use.
Checking Battery Match
Battery runtime is governed by the weakest link in a chain. Matching can be assured by measuring leftover charge of each pack after service with the Spectro CM-24. State-of-charge of a well-matched string should be within 10%. Replace low performers with a pack of similar capacity.
Operation
Settings are entered through the host with tests results shown in numbers and by graphics. The system works in local mode by storing test data in the host with optional connection to CadexCloud to share test results with fleet supervisors.
Saved data includes battery status, charge levels, internal battery resistance and temperature, as well as VIN records and work orders. Compatible printers produce print reports and labels.
Historic Test Data
Testing is simplified by marking each battery with QR code. A scan connects the host to CadexCloud to download custom matrices, view previous results and store new readings.
With matrices available from the Matrix library, Spectro devices form an open test platform to service all major batteries.
Capacity Thresholds
Pass/fail settings can be changed by selecting matrices with different MORE thresholds. This enables reserving top performers for critical uses while keeping regular packs for everyday uses.
Specifications
- Uses multi-model electrochemical impedance spectroscopy (EIS) to read capacity, CCA and SoC.
- Test time is 30s with a scanning frequency of 2,000Hz to 4Hz. Frequencies to 0.1Hz are available.
- Includes matrix of choice; additional matrices can be downloaded from CadexCloud.
- Capacity pass/fail set to 60%. Other settings are on request. Measures internal battery resistance.
- Test ranges: 3–12V; 24V; 35–300Ahand 300µΩ. Extended range to 48V nominal is on request.
- Internal battery performs 250 tests between charges.
- Unit connects to a host by Bluetooth and Cloud Analytics by Wi-Fi.
- 1 meter (40”) test cable connects to DB15; USB-C charges internal battery with AC adapter.
- D: 182mm (7.16“); W: 96mm (3.78“); H: 47mm (1.85“).430g net (0.94 lb.). Comes in transit case:
- Complies with CSA/UL/CE. RoHS. REACH, RED, WEEE, ISTA 3A, IP52 and FCC Type A.