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BATTERY POWER MEASURING METHOD, MEASURING DEVICE AND BATTERY-POWERED EQUIPMENT

  • US 20140163910A1
  • Filed: 11/18/2013
  • Published: 06/12/2014
  • Est. Priority Date: 12/11/2012
  • Status: Active Grant
First Claim
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1. A method of measuring a battery power, the method comprising:

  • a) detecting a voltage and a temperature at an output terminal of a battery;

    b) obtaining a first correction coefficient based on a battery open-circuit voltage at a previous sample time;

    c) obtaining a second correction coefficient based on said battery temperature;

    d) calculating a real-time battery open-circuit voltage by using said voltage at said output terminal of said battery, said first and second correction coefficients, said battery open-circuit voltage at said previous sample time, and a time interval between said previous sample time and a present sample time; and

    e) converting said real-time battery open-circuit voltage into a battery power measurement for display.

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