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US 2006/0125482 A1Published application
Apparatus and method for predicting battery capacity and fitness for service from a battery dynamic parameter and a recovery voltage differential
AssigneeMidtronics, Inc.
InventorsJames Klang, Krzysztof Jeziorczak
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Abstract
A method and apparatus for testing a storage battery is provided in which a battery is measured to obtain a battery dynamic parameter value such as conductance. The battery is measured to obtain an open circuit voltage, a resistance and a recovery voltage differential. A condition of the battery is determined as a function of the measured battery dynamic parameter, the open circuit voltage and the recovery voltage differential.
Claims24
A method of testing a storage battery, comprising:
- (a) measuring a dynamic parameter of the battery;
- (b) obtaining an open circuit voltage of the battery;
- (c) measuring a recovery voltage differential of the battery;
- and
- (d) determining a condition of the battery as a function of the measured battery dynamic parameter, the open circuit voltage, a discharge factor of the battery, and the recovery voltage differential.
2 more elements
An electronic battery tester comprising:
- a positive connector configured to couple to a positive terminal of the battery;
- a negative connector configured to couple to a negative terminal of the battery;
- a voltage sensor configured to measure an open circuit voltage and a recovery voltage differential of the battery;
- and
- battery test circuitry configured to
- (a) measure a dynamic parameter of the battery using the first and second connectors;
- and
- (b) determine a condition of the battery as a function of the measured battery dynamic parameter, the open circuit voltage, a discharge factor of the battery, and the recovery voltage differential.
5 more elements
Dependencies are inferred from the claim text.