CBA IV Computerized Battery Analyzer www.westmountainradio.com 1020 Spring City Drive Waukesha, WI 53186 262-522-6503 sales@westmountainradio.com ©2015 West Mountain Radio, All rights reserved. All trademarks are the property of their respective owners.
Introduction Thank you for choosing the West Mountain Radio CBA. It takes the guesswork out of using batteries and it will help you learn about batteries. The CBA is much more than a simple battery voltage tester or a battery load tester. The CBA will test virtually any type or size of battery, any chemistry or number of cells, up to 55 volts. Now anyone can do scientific tests of their batteries for a reasonable price.
The software supplied with the CBA, is easy to use and intuitive. It provides automatic sensing of the battery cell count, a safety check of the test rate, and recommends a minimum safe discharge voltage. It is designed to protect both the CBA and the batteries being tested. There are user editable and recallable battery test profiles. Capacity discharge tests may be viewed in Amp Hours, Watt Hours or minutes. The charge monitor test charts and records the voltage rise during a charge.
Computerized Battery Analyzer Software Safety Precautions The West Mountain Radio CBA is inherently safe but the batteries it tests are not. Anything that stores energy is potentially dangerous! Some types of batteries are safer than others but they are all capable of causing explosions or fires. For technical information on a battery, refer to the Battery Manufacturers website to get detailed information on the rating of the battery.
• For any indirect, special or consequential loss of any kind; • For any business losses, loss of revenue, income, profits or anticipated savings, loss of contracts or business relationships, loss of reputation or goodwill, or loss or corruption of information or data. By using this product, you agree to the limitations of liability set forth in this disclaimer are reasonable.
Sealed lead acid batteries such as gelled or AGM (absorbed glass mat) types are much safer. Automotive and marine types are not as safe and should be used in protective ventilated housings. Never make the last connection to a lead acid battery causing a spark on the terminal. Always connect the load or charger last, and at a safe distance away from the battery. NiCad, NiMh, and Alkaline Safety Warnings: These batteries can be dangerous also.
These batteries must be used in a manner that precludes ancillary fire. The following is recommended: 1. Store, and charge (discharge), in a fireproof container; never in your model. 2. Charge (discharge), in a protected area devoid of combustibles. Always stand watch over the charging (discharging), process. Never leave the charging process unattended. 3. In the event of damage from crashes, etc, carefully remove to a safe place for at least a half hour to observe.
Again Primary Safety Considerations: • Never discharge a battery at a higher discharge rate than it is designed for. • Never use a battery that has poorly insulated or frayed wiring or exposed metal parts. • Never connect a battery with reverse polarity. • Never test a battery near flammable materials. • Never allow a battery reach a temperature that causes it to get so hot that it may be too hot to touch.
Getting Started We strongly suggest that reading this entire manual and help file for a full understanding of the CBA and software operation! 1. From the CD ROM opening screen, click on “Software and Hardware Installation”. Follow the instructions on the screen to complete both the hardware and software installations. 2. Connect the CBA to your computer’s USB port using the supplied cable before connecting a battery. NOTE: If Windows says: “Found new Hardware”, you did not complete the previous step. 3.
NOTE: To convert mAh (milliampere hours) to Ah (Ampere hours) divide by 1000. If the capacity rating is not printed on the battery contact the manufacturer or visit their web page. 5. Connect the battery with very short, solid, low resistance connections using the proper connectors and polarity. WARNING: BE CERTAIN THAT YOU HAVE THE POLARITY CORRECT! FOR STANDARD CONVENTION: RED TO RED, BLACK TO BLACK AND PLUS TO PLUS, MINUS TO MINUS! 6.
10. The test will continue until the test “Cutoff V” is reached. At that point the test will automatically stop and the program will beep and display “Test Complete”. Everything will return to the stopped condition ready for another test or for you to save the file. Disconnect the battery at this time. WARNING: Do not ever leave a battery connected after a test completes! Leaving a battery in a discharged state for prolonged period of time could over discharge and damage the battery.
After running a discharge test on a battery, the battery should be recharged. Most batteries are rated for many recharge cycles depending on the battery type and on the discharge rates, sometimes 1000’s of cycles. Most batteries should not be left at their fully discharged cutoff voltages but should be stored in a partially charged state for maximum battery life. This completes the getting started section. Read this entire manual and help files for a full understanding of battery testing with a CBA.
Program Features The installation and basic operation is covered in the “Getting Started” section of this manual / help. This section gives a detailed explanation of using the program and its features. File Menu New: Starts a new test document. This will initialize a new blank graph. Overlay: Will allow you to open a saved test document and allow you to overlay the tests in that file over the test graph or graphs already on the screen as long as they are the same type.
NOTE: If you have test graphs on the screen that you wish to remove you may right click on the graph trace and select "Delete test" to remove that graph trace. You may also select properties and change the graph style but only if the test was done and saved on Version 2 or later of the software. Open: Allows you to open any saved file. Old test files from the previous version 1 of CBA software may be opened by changing “Files of type” from .bt2 to .bt1. When you open and display an old style .
Save As: Allows you to save a test under a new file name as a copy or to save the same file in a different folder location. Export: Converts the test file to .CSV (Comma Separated Values) comma separated file format and allows you to save it for data manipulation with a spreadsheet program such as Excel®, or with a text viewer. Print, Print Preview and Print Labels: For a discussion of printing functions refer to the help section on printing.
Chart Properties: Allows you to change the graph scaling or put a title on the graph Tip: You do not normally want to change the graph scaling as the automatic scaling works very well. Tools menu: Preferences: Lets you customize certain settings for the program such as “Temperature Units” allowing you to pick either degrees C or F. “Save window size and position” causes the program to come back with the same window the next time you open it.
These are advanced options and should only be used by technically competent users having access to laboratory calibration standards. Temperature Calibrate: The optional temperature probe may be calibrated at room temperature by comparing it to a room temp thermometer. For highest accuracy place a lab grade thermometer and the CBA temperature probe placed in water heated to the temperature of interest for testing.
Current Calibrate: An advanced option that only functions below 3 Amps. If you have a need for the most precise measurements and you have access to a lab quality ammeter that has known NBS traceable calibration you may wish to use this option. This option allows a calibration offset to center the CBA's calibration within a 12 bit window. In other words, you may adjust the discharge current in 1 mA increments but only within a 10 mA measurement window.
Test Configuration To begin testing your battery click "File-->New" or the button. You will notice that the “New Test” window defaults to the “Profile” “ and is in the auto check mode. With this profile you only need to provide the basic information to run a test, and the software will do the rest. All you need to supply is the “Test Name”, the “Battery Type” (chemistry) and provide the batteries rated “Capacity”.
The user can manually override any parameter and run a test or save those custom settings as a "Profile". To add and save a new profile use your mouse to highlight "". Then type in an appropriate name for a new custom profile. The program will ask you if you want to save it as a new profile or update the information for the existing "" information. After saving a profile or profiles you may recall them by typing in part of the profile name or selecting it from the drop down menu.
Voltage This is the rated average pack or cell voltage (average of a discharge cycle) of a battery, not the fully charged voltage which is actually measured by the CBA when a battery is first connected. In the “” mode this is automatically calculated from the user provided battery type information and from the CBA’s reading of the fully charged battery voltage. Double check that this voltage is correct before starting a test! NOTE: Manually changing this will also change the battery cell count.
Test Name This is a required field and a test can not be started without a test name. You should choose a name which identifies the battery and the current test so that you may identify the test perhaps years or months later. It is suggested that, depending on your testing application, a naming convention be adopted. Note that the software automatically records the battery chemistry, Ah rating and the discharge rate with every battery test. A saved file may contain multiple tests.
Test Type Normally you would leave this set to discharge. A Discharge Test provides a regulated constant current discharge. The other test option featured in the standard version is Charge Monitor which uses the CBA as a recording voltmeter to chart voltage vs. time for evaluation of a charger. A CBAIV enables another standard test for power supply characterization: Power Profile.
Tests Discharge Test This is a classic test for measuring and analyzing battery capacity. Using a constant current discharge the battery voltage lowers until the cutoff voltage is reached and the test stops. Optionally, using a temperature probe, the battery temperature can be monitored and kept within safe levels.
Tests Amps: In this field specify your desired discharge rate. Using the battery specifications enter a safe discharge rate that will not exceed the limitations of the battery you are testing. If you would like to have the CBA software make a suggestion on a typical discharge rate you may click the 'Suggest' button. Graph: For a Discharge test you may view your graphical results in Amp Hours, Watt Hours, minutes or, with an Extended License, Ragone.
Charge Monitor The Charge Monitor test will show the voltage of a battery over time as it is charged. This option provides a recording multi-meter that gives precise measurements and visually displays that information. Information about the Battery section, Amplifier section and Cutoff Voltage can be found in the Test Configuration section of the Help. Max Time: This field should be greater than the typical charge time for your selected battery.
Power Profile (CBAIV Only) This test is extremely useful for characterizing different power supplies, solar cells and batteries. The voltage current relationship is extremely useful and the data gathered will allow your power supply to operate at optimum power output and efficiency. This test continuously increases the load by the Current Increment while the voltage is graphed vs. current or vs. power. Using a voltage vs.
Current Increment: The test begins with a load of zero amps and increases the load on the battery or power supply every eight seconds until the Cutoff Voltage or the Cutoff Current is reached or the CBA becomes Current Limited (because the 150 Watt max power rating has been reached). If the CBA is Current Limited in a Power Profile test the test will end. Cutoff Current: Using the battery specifications enter a Cutoff Current that will not exceed the limitations of the battery you are testing.
Duty Cycle (Extended Software) The duty cycle test is particularly valuable when attempting to evaluate the performance of a battery in an application which typically involves a cyclic or variable duty cycle. This new test is much more exact and repeatable than pausing a test or starting and stopping multiple tests.. Information about the Battery section, Amplifier section and Cutoff Voltage can be found in the Test Configuration section of the Help.
Period On: This is the number of seconds the battery will be discharged at the given rate. Period Off: The load will drop to zero amps during an off period and will last for the number of seconds specified here. The duty cycle will be Pon / (Pon + Poff). Graph: For a Duty Cycle test you may view your graphical results in Amp Hours, Watt Hours or minutes. This can be changed at any time during the test or after it is completed and also when opening a saved file.
Multiple Discharge (Extended Software) Battery applications that experience different current loads, such as a variable number of motors running, can be tested using this test. Allowing for up to five different current loads for varying durations, this test allows realistic testing and real time analysis of performance under a highly variable load. When entering the load use the battery specifications to enter a safe discharge rate that will not exceed the limitations of the battery you are testing.
Constant Power (Extended Software) You may also run a test with constant power instead of constant current. With this test the current will be constantly increased as the battery voltage decreases over time. Useful for batteries that are used in systems that require consistent power. Information about the Battery section, Amplifier section and Cutoff Voltage can be found in the Test Configuration section of the Help. Watts: In this field specify your desired Power in Watts.
Graph: For a Constant Power test you may view your graphical results in Amp Hours, Watt Hours or minutes. This can be changed at any time during the test or after it is completed and also when opening a saved file. To do this right click on the graph area and choose 'Chart Properties'. Or select "Test --> Chart Properties". Constant Resistance (Extended Software) This test simulates a constant load on a battery. As the voltage decreases the current also decreases.
Resistance: In this field specify your desired Resistance in Ohms. Using the battery specifications enter a safe value that will not exceed the limitations of the battery you are testing. Graph: For a Constant Resistance test you may view your graphical results in Amp Hours, Watt Hours or minutes. This can be changed at any time during the test or after it is completed and also when opening a saved file. To do this right click on the graph area and choose 'Chart Properties'.
The test alternates between charge and discharge cycles. Discharging is accomplished with a WMR CBA III or CBA IV. Charging is accomplished by having a the WMR CBA Charger Interface board control an off-the-shelf charging unit that the customer will provide. When using Charge/Discharge test the software will disable the "Test Name" field. Instead the software will create test names 'Charge n' and 'Discharge n' automatically (where n is the cycle number, and increments automatically).
Maximum V: During a charge cycle, if the read voltage goes above this the CBA software will stop the charge cycle. Graph: For a Charge Discharge test you may view your graphical results in Amp Hours, Watt Hours or minutes. This can be changed at any time during the test or after it is completed and also when opening a saved file. To do this right click on the graph area and choose 'Chart Properties'. Or select "Test --> Chart Properties"..
Test Example Testing a battery The following example will lead you through testing a 3 cell (3S, 11.1 volt) lithium polymer battery. button or to go "File-After starting the program click the >New." Notice that the Profile is set to the default “” selection. Leave it like this as we will use the “” to help test this battery. We are testing a lithium polymer battery so let’s select “Li-Poly” in “Battery Type”. At this time you may plug in this battery.
Type in or scroll to the rated capacity for the battery; in this case 2.2 Ah. The sticker reads 2200 mAh Capacity. This is converted to Ah by dividing by 1000. Again the program can automatically recommend the discharge rate by clicking the "Suggest" button. The program will suggest settings for a one hour discharge for most battery types. Enter the Weight of the battery (if you are interested in a Ragone graph which adds weight as a variable in the graph).
It is near the start of a test and the “Voltage” is at 3.80 V at 22 amps. Note that the “Current” is not exactly at 22 amps, but 22.04: this is normal. The current will fluctuate perhaps 1% as the CBA is constantly adjusting. The “AmpHr” will steadily increase as the discharge continues and the power in “Watts” will decrease as the battery voltage drops. If you have a temperature probe connected and on the battery, that reading be shown here also.
The graph of our completed test is shown below: Test Data: During the test all variables are displayed. Voltage: Initial voltage (was 12.6 volts, end voltage was 8.4volts) Amp Hr: the rated capacity of this battery is 2.2 Ah and the test measured 2.347 Ah. This is a 1 hour (1C discharge). Most lithium batteries are rated at 2 hour (.5C discharge). Even at this higher rate the capacity of this battery is better than its ratings.
After completing this test we have several options for starting another test. • We could save this file by selecting "File --> Save" or "Save As" and name and save the file in the default My Documents/ CBA directory, or the directory of our choice. • We could also select "Test --> New" and the program will ask you if you want to append a new test on the previous test or start a new test document.
Saving and Printing Saving: After a test completes go to “File --> Save” or click . The name in the “Test Name” box will be suggested as the default name, or you may edit and pick a different file name. It is important that you choose a name that identifies what test, or tests are contained in the saved file. Note: Changing the file name will not change the test name of the graphs on the screen. The first time you save a file you will get a window requesting confirmation of the file name and directory.
If you attempt to start another test with a test on the screen the program will give you the following choices: Selecting “New Test” will prompt for a test to be appended or to start a new graph. NOTE: If you wish to save multiple tests in the same file they MUST be of the same "Test Type" (Discharge, Constant Power). If you attempt to overlay a new test the test type will be grayed out. NOTE: If you open a previously saved file, with previous test/tests on it, you may add more tests to it.
Printing Test Graphs: Since the CBA is able to save a file with multiple overlaid graphs we have provided the option to print in either color or black and white. For B&W printing we provide unique tick marks on each graph to identify each graph trace with a corresponding legend key. For color printing each graph has its own color. You must select B&W if you wish to print on a black and white printer.
Go to “File --> Print”. You may select the number of copies you would like and you will be given another opportunity to select the printer. If you wish you may go to “File --> Print Preview” window to see how it will look before printing. If it is OK, press “Print” at the top of the preview window. If it is not OK, close that window and go back to correct your printer setup.
Printing Battery Labels: A convenient way to save test information is right on the battery, so we have given you a label printing utility that prints labels to place directly on the battery that was tested. In order to print labels for the batteries you have tested, select print labels from the file menu and have Avery 5160 standard address labels loaded in your printer.
Licensing To purchase an Extended license follow the instructions on West Mountain Radio. Your License information will be sent by email. NOTE: This information is case sensitive. After receiving the information start the program and connect the CBA that matches your License information. Click on the connected icon at the bottom right or go to “Tools --> CBA Devices”. Select the connected CBA that your license is valid for and click “License.
Enter your registration information exactly as shown in the email “Licensee:”, “CBA serial #:” and the “License Key:”. You may optionally enter a “CBA Name:” It is suggested if you plan to use multiple CBAs in the future. Clicking "Identify" will flash the selected CBA's green LED for a few seconds. The default name contains the serial number preceded by "CBA #".
Extended Software Features This section covers the advanced features available only with an Extended License. These features will be grayed out unless you have purchased a License and registered your license by entering your name, CBA serial number and license key in the "Tools --> CBA Devices" window. We recommend that you are familiar with the standard operation before learning about and using the Extended features. The “New Test” window will have several additional features.
1. Start a test at the intended current for the battery you are planning to test with the wiring you are planning to use for your test set up. 2. Record the voltage that the software reads “V_CBA:” 3. Record the voltage that your voltmeter reads “V_Battery:” at the calibration point 4. Record the average “Current” “I:” shown by the software while the voltages are being measured. 5. Stop the test and go to “Tools --> Lab Calibrate --> Voltage Calibrate”.
Graph Notes Adding notes is a feature that may be used for additional notes and observations and many other purposes. The test below is a graph of a duty cycle test using Voltage vs. Time. The test was set for 30 seconds on and 30 seconds off at a 4 amp load. Move the cursor to the graph until you see the test name displayed Step 2, right click and select “Add Note”.
The final note is shown on the graph. NOTE: If you have a number of graphs overlaid, notes are helpful in identifying different tests and graph features.
Temperature Graphing The test will be stopped when the temperature is above the specified threshold or a "Recovery Time" can be specified. When the battery reaches the threshold temperature the test will stop for the given recovery time and then resume. To see the results over time for battery temperature cool down and voltage recovery you need to use a Voltage vs. minutes graph, not Amphrs or Watthrs.
NOTE: This graph can only be displayed if a test was started and save with the correct weight of the tested battery in the new test window. If you are not familiar with Ragone plotting see http://en.wikipedia. org/wiki/Ragone_plot.
CBA Charger Interface Charge / Discharge Test The WMR Charger Interface board has the following inputs and outputs: • IN-A and IN-B- These should connect to a signal on the charging unit that indicates charging is complete. An LED will suffice. These inputs can handle up to 12V. • OUT-A and OUT-B. These outputs are shorted (relays closed) when the software is starting a charge cycle.
While performing a charging cycle, the CBA software will look for a high on either IN-A or IN-B to signify a charge complete. If this is not compatible with your charging unit or need more flexible options, contact WMR and we can add support for your charging unit. Typical Setup The CBA and battery are both connected in parallel to the indicated Powerpole® connector. When the test is in Discharge the relay on the Charger Interface board is open and creates an open circuit.
Multiple CBAIV setups DO NOT require any additional licenses Computer system requirements • CBAIII and CBAIV only (CBA and CBAII not supported) • Desktop computer (laptop computers not supported) • At least a 400 watt PC power supply • Available PCI slots for additional USB connections (1 PCI slot per 4 CBA’s).
USB card or computer USB ports, but it is recommended that the CBA’s are all either plugged directly into the computer, or into the cards; not a combination of both. Before installing a Multi CBA system you should have already installed and run a stand-alone system with one CBA. You should also have studied the rest of the help files and become familiar with the operation using one CBA. Go to “Help --> About CBA” and check that you have our CBA software version 2.1.0.14 or later.
Testing Multiple Batteries: It is necessary that you are already familiar with testing batteries one at a time with a single CBA. If not, go back and read this help manual for using the CBA system for battery analysis. It is very important to correctly keep track of your tests especially with multiple CBA’s. Our software deliberately requires a test name for each test. By default it uses that name for the file name when you save the completed test file.
NOTE: You will notice that the test graph tabs come up in the order that you select the next test. If you would like to re-arrange the order you may click on the tab with your left mouse button, holding it down, and drag the tab over to a new location. When a test is completed on a CBA you may start testing another battery while the other CBAs are running. Disconnect the battery and click “Test --> New”. A prompt will appear asking if you wish to append your graph or start with a new one.
Testing From Script This section explains how to configure your CBA software to run tests from a command line or scripting language. Firstly, if using multiple CBA's you should first ensure that you can connect to multiple CBA's while the program is in normal operation. If you have a CBAIV this capability is built in. If you are unsure start the CBA software and select 'Tools' and then 'CBA Devices'.
CBA Software Command-Line Options Items in italics are dynamic, value to be specified by user.
Command Parameters /test *discharge *power *resistance *multiple *duty *profile Comments amps Initiate a hands-free watts test. A hands-free ohms test will open the n,t1,a1,...,tn,an software to perform amps, ton, toff a test, and when increment, the test is complete cutoffcurrent the software will automatically close.
*This parameter should be given before other parameters:* The following command-line options are required to use /test: /cutoff discharge performs a test with constant current draw from the battery. amps specifies the desired current. Example (1.5 Amp Test, cutoff at 10.5V): /test discharge 1.5 /cutoff 10.5 power performs a test with constant power draw from the battery. watts specifies the desired power draw. Example (50 Watt test, cutoff at 10.5V): /test power 50 /cutoff 10.
duty performs a test at specified amps load current, load is applied for ton seconds, and not applied for toff seconds. ton and toff cannot be fractional numbers. Test is automatically stopped when voltage drops below cutoff voltage. profile performs a tests with load beginning at zero and increasing every 8 seconds by the specified increment until the cutoffcurrent value is reached or the battery voltage falls below the /cutoff parameter Example (2A increment with 20 A cutoffcurrent and 8.
Command /battery Parameters capacity, cells, voltage, weight, type Comments when performing a handsfree test with /test and saving results to a file with /open, this command sets the battery information. This is only used for informational purposes and does not affect the test parameters. If this is not specified, random data may be saved to the file.
/cutoff Specify the cutoff voltage. If using a hands-free test, this parameter is required, if not specified the program will not run a test. The test is completed when the battery goes below this voltage. voltage Example: /open /title /test discharge cutoff 10.5 1.5 / Specify which test results file to open. If a hands-free test mode was initiated with /test command-line option, then test results are saved to this file when finished. filename Example: /open test.
/temperature n /graph AmpHrs Watthrs Minutes Ragone Amos Watts /amplifiers n /unit Serial West Mountain Radio if used, temperature will also be graphed during hands-free test (/test) and saved to file (/open). n specifies the temperature to stop the test, to prevent test from running if external temperature is too high. If performaing a hands-free test (/test), this specifies the graphing format to be used. Ragone graphing only works for discharge tests.
Hands Free Testing An external software program, or script, can initiate a hands-free test by executing the software with the /test command-line options. For example: "C:\Program Files\CBA III\WMRCBA2.exe" discharge 2 /cutoff 10.5 /open result.bt2 /test The software will remain open and run the test until the test has completed. For most tests, it is completed when battery voltage has dropped below cutoff voltage.
Temperature Probe Temperature Graphing (Extended Version): If you have purchased an Extended License and the temperature probe accessory , you will have the option of graphing an external temperature and allow for stopping a test if an external temperature hits a user-specified threshold. Simply click the 'Graph Temperature' radio button when setting up a test. If you are doing a standard discharge, you will also have a 'recovery Time' check box and time box.
quite accurate over the range that a battery may be operated at, however the readings will be incorrect if the probe is not in close contact with the battery or there is air moving over it. Unlike an instant response IR thermometer other types of thermometers take a considerable amount of time to display their temperature reading. There is a noticeable thermal lag with our thermistor type probe. The CBA may be set for automatic over temperature cutoff. Place the probe on the battery.
Firmware Updates Some CBA devices have the capability to be updated with new firmware. To perform this update, open the list of CBA devices by selecting 'Tools' and then 'CBA Devices' from the menu. Select the CBA you wish to update, and if this CBA device has the capability to be updated the 'Update' button will be available. Clicking 'Update' will bring you to the 'Update CBA Firmware' window. From this window you can choose which firmware to update using the pull-down labeled 'File'.
WARNING: DO NOT unplug your CBAIV during a firmware update! After this is finished your updated CBA is now ready to use! West Mountain Radio 73 Operating Manual
Troubleshooting If the CBA program indicates “No CBA units available” when opening a new test window and/or the CBA green LED or virtual LEDs are not on when a CBA is connected and the program is running you may not have correctly completed the Windows® CBA USB driver installation. Re-boot your computer. Plug the CBA back in. Repeat our hardware installation instructions and try it again. If it still doesn’t work, open Device Manager.
Some CBA Menu selections are grayed out and do not work These are typically the optional features available only with the Extended License. Visit www.westmountainradio.com to purchase an Extended License. No load drawn from CBA during test, or test runs but battery voltage never decreases The usual cause for this is the safety fuse in the CBA has blown. If you remove the red lid from the bottom of the CBA, you will see the automotive fuse connected to the PCB. Verify this fuse is okay.
Computer System Requirements Basic Requirements: • A PC with a Pentium 233 or better • At least an 800 X 600 graphics card and display monitor • Windows 98SE, ME, NT, 2000, XP, Vista, Windows 7 (32 or 64 bit) • An available USB port Recommended: • AMD or Pentium,1.2 GHz better. • Better than 800 X 600 graphics card and display monitor.
Support If you cannot find the answer to a question about using the CBA here in this manual and help files, you may get help several other ways. Web Support: http://www.westmountainradio.com/supportcba.htm Email: support@westmountainradio.com Phone: 262-522-6503 x32 Fax: 262-522-6504 Mail: West Mountain Radio 1020 Spring City Drive Waukesha, WI 53186 USA If you have a problem with your computer or USB port, contact the computer manufacturer.
C D E F G I L M P S T Index CBA Charger Interface................................................................55 CBA Testing From Script.............................................................61 Charge Discharge.......................................................................34 Charge Monitor Test....................................................................25 Constant Power Test...................................................................31 Constant Resistance..................
Specifications • • • • • • • • • • • • • • • • • • • • • • • 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 + - .
CBA IV Warranty CBA IV is warranted against failure due to defects in workmanship or materials for one year after the date of purchase from West Mountain Radio. Warranty does not cover damage caused by abuse, accident, misuse, improper or abnormal usage, failure to follow instructions, improper installation, alteration, lightning, or other incidence of excessive voltage or current. If failure occurs within this period, return the CBA IV or accessory to West Mountain Radio at your shipping expense.
