THE PROBLEM
Cart runtime depends on the weakest battery
Golf cart fleets depend on reliable deep-cycle battery packs. When one battery in a string fades, the whole cart can lose runtime, creating guest complaints, service interruptions, and avoidable fleet rotation problems.
THE CADEX SOLUTION
Verify pack readiness before busy use
Spectro CM-24 checks battery capacity in a fast, non-invasive test. For deep-cycle batteries, pass/fail levels are commonly set around 60% so top-performing packs can be assigned to demanding use while weaker packs are repaired, replaced, or assigned to lighter service.
HOW IT WORKS
Use leftover charge to check battery matching
After service, technicians can measure remaining charge across packs to see whether the string is balanced. A well-matched string should remain within a close state-of-charge range, while a low performer points to the weak link limiting runtime.
WHY IT MATTERS
MORE turns runtime into a service threshold
Minimum Operational Reserve Energy sets a practical battery threshold. For golf cart fleets, that translates into a simple service question: will this cart complete the work expected of it today?
BENEFITS
What users gain
Reduce cart downtime during peak use.
Identify weak batteries before the customer.
Improve pack matching and troubleshooting.
Use stronger batteries for higher-demand routes.
Track battery history across the fleet.
Ideal for
Golf courses, resorts, retirement communities, campus fleets, cart dealers, rental fleets, and maintenance teams managing electric carts.
Speak With Cadex
Protect golf cart runtime across your fleet
See how Cadex can help your team find weak batteries, confirm usable runtime, and keep more carts ready for service.
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.