Avo/Biddle 246006 C-BITE Compact Battery

Avo/Biddle 246006 C-BITE Compact Battery
Manufacturer: Biddle / AVO
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Avo/Biddle 246006 C-BITE Compact Battery Condition Tester


Avo/Biddle 246006 C-BITE Compact Battery Condition Tester

Rent me for $400 a month

   The C-BITE Compact Battery Condition Tester is ideal for determining the condition of batteries in distributed power (outside plant), wireless, customer premise and other telecommunications installations, Railroad signal and communications, smaller UPS's and emergency lighting, as well as many other types of installations.


  • Instantaneously checks battery condition and compares to a baseline
  • On-line measurements of lead-acid and NiCd batteries
  • Stores, prints, downloads 210 data sets in up to eight tests
  • Direct intercell connection resistance measurements

   The operational life of a battery varies greatly depending on the pattern of use (frequency of power failures, continuous operating time, etc.) and the environmental conditions of the site. With repeated cycling of a storage battery over a long interval, battery performance gradually deteriorates and the internal resistance increases until the battery will no longer take a charge or the battery falls below 80% of its rated capacity. Faults may also be caused by internal short-circuits, negative lug rot, sulphation, etc., making the battery incapable of supporting the load during an event. It is necessary, therefore, to measure the internal resistance, float voltage and intercell connection resistance, and the temperature of the battery or the environment in order to properly assess the condition of the battery. However, experience has shown that many battery failures occur simply due to loose intercell connections caused by the 'cold-flow' phenomenon at the negative battery terminal. The C-BITE finds loose connections by directly measuring intercell connection resistance.

   The C-BITE measures the internal AC resistance, intercell connection resistance, float voltage and temperature (with an optional probe) of secondary batteries. The internal AC resistance is measured by applying a constant alternating current (21 Hz) to the cell being measured. The internal AC resistance is then calculated from the voltage drop that is measured (following Ohm's Law). In order to obtain the voltage drop that is due only to the cell's internal resistance, synchronous detection circuitry is used. By using synchronous detection, a more accurate measurement is possible. A four-wire measurement (Kelvin-type) is utilized to eliminate any errors due to lead wire resistance.

   Another advantage of AC resistance is that it is not affected by the DC voltage of the battery system. Figure 1 shows a typical schematic diagram of measuring procedure. The C-BITE Compact Battery Condition Tester takes measurements of secondary batteries on-line. The user may enter comparator values for the Warning and Fail resistance levels as well as a low voltage level. Then measure each battery and intercell connector sequentially. Each result is then displayed on the LCD. It is possible to review previous cell data at any time during the test. To print test data, simply connect the C-BITE Digital Printer to the C-BITE and press the print button. All test data are printed with statistical analysis and bar graph.