ELECTRONIC BATTERY TESTER
First Claim
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1. An electronic battery tester for testing a storage battery, comprising:
- a first pair of connectors configured to couple to a positive terminal of the battery;
a second pair of connectors configured to couple to a negative terminal of the battery, the first and second pairs of connectors forming a Kelvin connection with the battery;
a memory;
a calibration interface configured to provide a calibrator control output to a calibrator;
a microprocessor configured to test the battery through the Kelvin connection based upon a calibration value stored in the memory, the microprocessor further configured to communicate with the calibrator through the calibration interface to initiate a self calibration, measure a calibrated value of the calibrator through the Kelvin connection and store the measured calibrator value in memory as the calibration value.
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Abstract
An electronic battery tester includes a calibration interface. A microprocessor is configured to calibrate the battery tester by coupling to a calibrator through the calibration interface.
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Citations
40 Claims
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1. An electronic battery tester for testing a storage battery, comprising:
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a first pair of connectors configured to couple to a positive terminal of the battery;
a second pair of connectors configured to couple to a negative terminal of the battery, the first and second pairs of connectors forming a Kelvin connection with the battery;
a memory;
a calibration interface configured to provide a calibrator control output to a calibrator;
a microprocessor configured to test the battery through the Kelvin connection based upon a calibration value stored in the memory, the microprocessor further configured to communicate with the calibrator through the calibration interface to initiate a self calibration, measure a calibrated value of the calibrator through the Kelvin connection and store the measured calibrator value in memory as the calibration value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 17, 18, 28)
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11. The electronic battery tester of claim 11 wherein a programming mode is entered during power-up of the microprocessor.
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19. An electronic battery tester for testing a storage battery, comprising:
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a first pair of connectors configured to couple to a positive terminal of the battery;
a second pair of connectors configured to couple to a negative terminal of the battery, the first and second pairs of connectors forming a Kelvin connection with the battery;
a memory;
a microprocessor configured to test the battery through the Kelvin connection based upon an industry standard battery rating; and
a user input configured to select an industry standard rating system for the battery rating and store the selected rating system in the memory. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27)
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29. An electronic battery tester for testing a storage battery, comprising:
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a first pair of connectors configured to couple to a positive terminal of the battery;
a second pair of connectors configured to couple to a negative terminal of the battery, the first and second pairs of connectors forming a Kelvin connection with the battery;
a memory;
a microprocessor configured to test the battery through the Kelvin connection based upon a battery rating; and
a user input configured to select an increment or decrement value for use in entering the battery rating and store the value in the memory. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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40. A battery tester calibrator, comprising:
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a control input configured to receive a control input from an electronic battery tester;
a Kelvin connection coupling configured to couple to a Kelvin connection of the battery tester;
a voltage reference;
a resistance reference;
at least one switch configured to selectively couple the voltage and resistance references to the Kelvin connection coupling in respective first and second relay positions in response to the control input.
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Specification