Picture of CBA IV 4 Computerized Battery Analyzer
CBA IV 4 Computerized Battery Analyzer
  • $162.77
  • In stock
  • SKU: CBA4

CBA IV 4 Computerized Battery Analyzer

Scientifically Analyze Battery Performance. Test any type of battery. Test quickly at real world load conditions, 40 amps max. Results are graphically displayed with easy to use software. USB interface. Built-in safety features for battery protection. Read Full Description
Availability: In stock

* Improvement/Enhancement on CBA IV


Scientifically Analyze Battery Performance

  • True constant current battery capacity test with results graphically displayed, constant power testing supported with Extended software upgrade
  • Discharge current is software and electronically regulated using a solid state switch and fan cooled electronic load
  • Test any type of battery; coin cell to automotive or larger. Presets for NiCad, NiMH, Lead Acid, Li Ion, Li Poly, Alkaline, Carbon Zinc, Mercury etc.
  • Solar cell profiling capability *
  • Lower current testing capabilities - down to 10 mA *

Perform Fast, High Power Testing

  • Tests quickly at real world load conditions, up to 150 watts or 40 amps maximum, whichever is higher
  • High voltage testing at up to 55 volts; the equivalent of 1 to 38 NiCad or NiMh cells
  • Optional 500 watt and 1000 watt amplifiers

Accuracy and Precision for Demanding Applications

  • On-board computer performs accurate measurement with 12 bit effective resolution. Auto ranging for 2 current ranges and three voltages
  • Each CBA is individually calibrated with a computerized calibration system
  • Calibration certification data provided with CBA IV Pro

Built-in Safety Features Provide Superior Battery Protection

  • Fail safe: automatic protection of temperature, current and power *
  • Discharge test current user selectable from 0 to 40 Amps
  • Automatic voltage shut off at end of test using a software recommended or user selected safe discharge voltage
  • Automatic over-temperature shut off at end of test at using a software recommended or user selected maximum temperature with optional external magnetic temperature sensor.

Easy-to-Use Software for Data Analysis

  • User selected battery cell chemistry, number of cells and test current
  • Software recommends safe tests based on user supplied battery information
  • Automatic graph setup and scaling
  • Measures and displays voltage, current, amp-hrs, watts and temperature (Requires optional temperature probe)
  • Easy overlay comparisons of multiple graphs may be displayed saved and recalled
  • Save, display and print battery test graphs and battery labels
  • Plug and Play high speed USB interface, with easy to use and intuitive Windows® software supplied on CD ROM

Extended Software Upgrade License Unlocks Features for Serious Battery Testing

  • Power profile to characterize batteries, power supplies and solar cells
  • Programmable automatic duty cycle test with up to 999 second on/off cycle periods
  • Regulated constant power discharge (current goes up as battery voltage drops)
  • Temperature graphing with a recovery time option
  • Ragone power density charting using battery weight (used for performance comparison of energy sources charting energy density (Watt-Hours/kg) vs power density (W/kg))
  • Test-lead resistance voltage calibration utility to give higher accuracy voltage readings right at the battery terminals
  • Enables placement of user notes on graphs
  • Multiple unit testing (each requires Extended License to access)


  • One model for all testing ranges *
  • Maximum continuous discharge rate: 100 watts
  • Maximum limited term discharge rate with < 3500 ma-hour battery: 125 watts
  • Maximum limited term discharge rate with < 1000 ma-hour battery: 150 watts
  • 0-3 amp accuracy: typically better than + - 10 ma
  • 3-40 amp accuracy: typically better than + - 45 ma
  • 0-5 volt accuracy: typically better than + - .005 volts
  • 5-15 volt accuracy: typically better than + - .01 volts
  • 10-60 volt accuracy: typically better than + - .05 volts
  • Maximum operating voltage: 55 Volts (48 Volt Lead Acid Telecom supported)
  • Maximum discharge rate: 40 amps (Battery dependent, 100 watt continuous)
  • Minimum discharge voltage to maintain 30 amps .9Volts (Battery dependent)
  • Minimum Voltage for a 40 amp discharge: 2 volts at completion of test (Battery dependant)
  • Minimum discharge rate: 0.1 Amps *
  • Residual current drain, battery connected while not in use: < .003 amps @ 12 volts
  • High performance micro controller with built in USB interface and 10 bit A/D conversion.
  • USB powered; the CBA does not use the battery being tested to run the CBA or the fan.
  • System ready and Test in progress LED indicators, viewable from across a room.
  • CBA internal over temperature sensing and protection.
  • Graph printing on any standard color or B&W printer.
  • Battery test label printing on standard 05160 stick-on labels.
  • Dimensions: 3.5" H x 2.8" W x 3.6" D.
  • Weight: 16 oz.
Customer Reviews
Great tester By
I have used a CAB ll for at least 8 years starting on an old win 98 machine up to a Windows 7 machine. It has run hundreds of tests on lead acid,ni-cad, ni-metal hydride LI-ion from 1amp hour up to well over 100amp hour batteries.
It is a great device for RV owners and anybody who needs to know what their batteries can supply.
Was this review helpful? Yes No (2/0)
Great Battery Tester By
There was only one other review for this product.  They listed the downside as the software not being compatible with a newer version of windows.  I have used mine on windows 8 and 10 without any issue.  They also provide an API for writing your own application if you desire.  Before you use this tester you will need to be familiar with the battery chemistry that you are testing.  Most of this is pretty easy to find online.  The software suggests the possible cells in series and cut off voltage based on the voltage reading from the battery.  I have seen that this is not quite correct, and the test cut off voltage is a little low for my taste, but you can change this when setting up the test.  The software will create a graph and summary of the test, and also allows for exporting the data into a csv file if you would like to analyze it further or use your own graphing package.  Other battery testers with this capability can get quite expensive.  I chose the CBA IV because it will allow me to test any battery chemestry.
Was this review helpful? Yes No (16/0)
Great Product - If you don't mind planned obsolescence! By
I have the CBA II, and really enjoyed using it.  But as soon as a later version of Windows was released, it no longer worked with my upgraded PC.  When I contacted West Mountain, they said they didn't support Windows upgrades and I'd have to buy an entire new unit!  I wouldn't mind paying for software upgrades, but this is ridiculous!
Was this review helpful? Yes No (34/3)
Write a review of this product and share your opinion with others.
Not Good Needs That Special Something Average, Ordinary That's Good Stuff Perfect. It doesn't get any better
The most useful comments contain specific examples about:
  • How you use the product
  • Things that are great about it
  • Things that aren't so great about it