IBEX-Series Portable Battery Resistance Testers


Eagle Eye's IBEX-Series are the premier battery resistance testers in Eagle Eye's portable battery tester line. The IBEX-Series is the fastest internal battery resistance tester/portable battery tester in the industry today, providing measurement results in just three seconds. The IBEX battery tester is available in three different models: IBEX-Ultra, IBEX-Pro, and IBEX-EX. Each model has different accessories and capabilities - see the table below for differences between them. Every IBEX model accurately and quickly tests a battery's state-of-health while the system is online. Test Internal ohmic Resistance (mΩ) or Conductance (Siemens), Connection Resistance, Jar Voltage (V), Temperature, DC Current and Ripple Current.

The IBEX portable battery tester is the smallest, fastest, most precise and easiest to operate internal resistance tester on the market and it comes with the most comprehensive battery management software available for trending batteries, creating reports, exporting to Excel and more. The handheld design is also the smallest in size and weight in the industry, with the fastest measurement speed. Easy-to-use menu options and a backlit LCD screen offer complete user-friendly functionality.

  • Specifications
  • FAQs
  • Benefits
  • More Info

Technical Specs

Battery Types: VLA, VLRA, Ni-Cad, & Others
Parameters Measured: Internal Ohmic Resistance, Inter-Cell Resistance, Voltage,
Temperature, DC Current (Ultra), DC Ripple Current (Ultra)
Measurement Range: Battery Capacity: 5 – 6000 Ah
Voltage: 0 – 60 VDC
Internal Resistance Range: 0.001 – 300mΩ
Accuracy: DC Voltage: ±0.5%
Internal Resistance: ±1.0%
Temperature: ±2.0%
Resolution: DC Voltage: 10 mV
Internal Resistance: 0.001 mΩ
Temperature: 0.5 °C (0.5 °F)
Test Speed: 3 – 4 seconds per cell/unit
Test Load: Less than 2 A per cell/unit
Alarms: Voltage Over & Under, Resistance Warning & Fail, Temperature Over
Calibration Method: Auto Calibration
Data Transfer: USB Cable to PC
Display: Backlit LCD
Internal Storage: 4800 Results
Alarms: 80 Alarms
Operating Environment: -20 – 80 °C (-4 – 176 °F)
Power Requirements: Li-ion Battery Pack (2200 mAh, 11.1V) 3 – 4 Hours of testing
Dimensions / Weight: 175 x 95 x 42 mm (6.8 x 3.7 x 1.6 in) / 0.65 kg (1.4 lbs)


What are some common applications areas for this product?
Common applications include but are not limited to:

  • Utilities
  • UPS
  • Service Groups
  • Oil, Gas, Fuel
  • Green Energy
  • Nuclear Power
  • Municipalities
  • CATV/Broadband
  • Mining
  • Hospitals
  • Alarm/Emergency Lighting
  • Motive Power
  • Telecommunication
  • Transportation
  • Mission Critical Facilities
  • Electronics
  • Industrial Manufacturing
  • Battery Manufacturers and Suppliers

What is the importance of resistance testing?
Resistance testing is an integral part of a full battery maintenance program. Resistance testing allows you to diagnose a battery’s health and use data to trend performance over the battery’s lifetime.

What type of cells can the IBEX measure?
The IBEX will measure 1.2, 2, 6, and 12V cells up to 6,000AH

Can I test my battery system while its online?
Yes, the IBEX has a ripple removing algorithm built in to automatically insure precise measuring even on float charge.

How long does the IBEX take to display testing measurements?
The IBEX takes less than 3 seconds per measurement

How often should I calibrate?
We recommend annual calibrations

Can I field calibrate?
If necessary, the IBEX can be field calibrated for improved performance

Does the IBEX work with Ni-Cad batteries?
The IBEX is compatible with VLA, VRLA, Ni-Cad, & other battery types

How large is the measurement test load used by the IBEX?
The IBEX injects less than 2A per cell

How many hours will the battery last for?
The IBEX has 2x supplied Li-Ion batteries that will power the IBEX for 3-4 hours each

What if I want only want Excel data?
No problem! Excel filing can be achieved easily through Serial Com or Exmons

What are the advantages to using the software?
There are many advantages to transferring data to the software. Some, but not limited to, are extended data analysis, report generation, historical data trending, data loss protection (in event of IBEX loss or damage), & no limitation on data results

What is Serial Com?
Serial Com is a data transfer interface, provided with all IBEX models, that receives IBEX data in Excel format

What is Exmons Ultra Plus?
Exmons is a software program developed for use with the IBEX-Series Pro & Ultra models. Its main use is to enable the user to transfer data into a central database where the user can generate reports, view the data in chart & graph forms, & compare trends of present & historical data

If I get a new PC will I lose my data?
If your PC is damaged and you do not have a backup file, the data will be lost. If you are upgrading your PC however, you can easily export the entire database to the new PC. We recommend periodically saving a backup database to a flash drive

How many PCs can my database be installed on?
There is no limitation to how many PC’s the database can be installed on. You will however have to update each database independently, either by IBEX transfer or database exporting each time new measurement data is recorded. We recommend providing dedicated PC to your battery maintenance team

If my IBEX is damaged, is my old data compatible with my new IBEX?
Yes, Exmons is designed to work with any IBEX Pro or Ultra (EX model not compatible). This is so that large battery maintenance teams can use multiple IBEXs for one shared database

Do you have additional literature for the Exmons software?
Beyond the dedicated Exmons user manual we have a full tutorial series covering the features of the Exmons software, found on our website under "support"

What are the PC requirements for Exmons Ultra Plus?
The recommended minimum PC performance benchmarks are a dual core 1.8Ghz processor, 2GB memory with disk space of 100GB, & display resolution of 1280x1024

Can I incorporate specific gravity data into Exmons?
Yes, Exmons is designed to work with our SG-Ultra & Max with a special IrDA adapter

Does my new IBEX work with the 1st generation thermal printer?
Unfortunately, new IBEX units only work with 2nd generation thermal printers. To verify if your IBEX works with the old or new printer go to the IBEX menu and verify the firmware version in the lower right corner. Version P64e is compatible with the 1st gen printers (grey) and version P641e is compatible with the 2nd generation printers (black).


  • IEEE Recommended: Meets IEEE Std 1188-1996 and 2005 "Recommended Practice for Maintenance, Testing, and Replacement for Stationary Applications
  • Precise & Repeatable: Utilizing the world's first ripple removing algorithm, the IBEX identifies problematic or failing cells
  • Durable: With unique design and limited current required, the IBEX will outlast all other testers
  • Online Tester: Test batteries while they are in service
  • Fast: Automatically measures and stores data in just 3-4 seconds
  • Comprehensive Battery Diagnostic Software: The included software provides an easy to use interface for data management, trending analysis, exporting to excel, viewing graphs and creating reports
  • Battery Bank Management: Manage all of your battery banks with the IBEX-Ultra. All necessary battery banks can be managed at your PC with the included software
  • Multiple Settings: Built-in and automatic measuring algorithm settings

More Info

What's Included?

The top tier model, the IBEX-Ultra, includes Exmons Ultra comprehensive diagnostic software. Exmons Ultra software allows for data management, trending analysis, viewing graphs, creating reports and exporting to Microsoft Excel. Exmons allows the user to easily identify problematic cells and ensures the integrity of backup battery systems. Exmons Ultra is easy-to-use and offers customization to meet any company's report generating needs.

IBEX Kits Include:
Standard Kit (All Models):IBEX Body, Soft-Poly-Vinyl Bag, 4-Pin Test Leads, Li-Ion Battery, USB Cable, Serial Comm Software, Standard Charger (100 to 240 VAC), Hard Plastic Carrying Case, User Manual
IBEX-Ultra:Exmons Ultra Software, Temperature Probe, 0.5mΩ Shunt, Spare 4-Pin Test Lead Tips, DC Clamp Meter
IBEX-Pro:Exmons Ultra, 0.5mΩ Shunt, Spare 4-Pin Test Lead Tips
IBEX-Ex:Standard Kit
Optional:Modular Extender Rods with LED light (91 cm, 3 ft) for testing UPS Extender Rods cabinets; Thermal Printer, Paper Rolls for IR Printer

Protect Your Batteries

Resistance and voltage testing is critical to determining the state-of-health of your batteries. Use the IBEX portable battery testers for your resistance and voltage testing. Ohmic resistance represents the condition or state-of-health of the battery. It exposes weaknesses in cell and intercell connections without stressing the battery. Voltage testing determines state-of-charge in volts. Irregular voltages can indicate problems within the battery. Lack of maintenance is the single largest contributor of premature battery failure. The IBEX-Series battery testing kits are extremely effective in preventing battery failure and an essential component of any battery preventative maintenance program.

Compliance for NERC and IEEE Standards

Ensure you are testing per IEEE and NERC standards. The IBEX-Series meets IEEE Standards for "Recommended Practice for Maintenance, Testing and Replacement for Stationary Applications." Eagle Eye Power Solutions also offers complete IEEE/NERC Battery Testing Kits that include an IBEX-Ultra portable battery tester, our SG-Ultra Max Digital Hydrometer and Exmons Ultra All-in-One Software.

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    ULTRA Intelligent Battery Examiner Kit
    with Exmons Ultra Software

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Eagle Eye Power Solutions NERC Compliance

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Reviews & Recommendations
"For years we have used other testing equipment for doing PM's on batteries. As our PM base grew so did the amount of time it took to complete these. We needed to find a better way, something that was just as accurate but quicker and more durable. The IBEX-Ultra has cut the PM time in UPS cabinets by at least half. The tech support is also top-notch."

– Dan (Enersys)
"The IBEX is easy to set-up, all the test results are intuitive and easy to access. The reporting functions in the software give us all the information we need to put us on solid ground when discussing results with clients or battery manufacturers. The support we've received from Eagle Eye has been exceptional in every way. They really do back their product and we have chosen to invest in their testing equipment because we feel that we've formed a really valuable partner to our business."

– Jason (Hakai Energy Solutions)
Companies We Serve
  • Xcel EnergyAmerican Electric Power
  • Century LinkAmerican Electric Supply
  • SMUDCopper Valley Telecom
  • EnersysTelalaska