Apparatus and method for predicting the remaining discharge time of a battery

  • US 20040157113A1
  • Filed: 12/30/2003
  • Published: 08/12/2004
  • Est. Priority Date: 12/31/2002
  • Status: Active Grant
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First Claim
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1. A method comprising:

  • (a) measuring a dynamic parameter of the battery;

    (b) obtaining a discharge current of the battery;

    (c) measuring a voltage of the battery;

    (d) obtaining a temperature of the battery; and

    (e) predicting a remaining run time of the battery as a function of the measured battery dynamic parameter, the discharge current, the measured battery voltage, the battery temperature, a full charge battery dynamic parameter and an estimated capacity of the battery.

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