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Tracking battery conditions

  • US 10,401,436 B2
  • Filed: 05/04/2015
  • Issued: 09/03/2019
  • Est. Priority Date: 05/04/2015
  • Status: Active Grant
First Claim
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1. A method for managing an operating state of a battery energizing a mobile device, the method comprising:

  • inducing a first induced relaxation state in the battery upon an occurrence of a first event, wherein the first event corresponds to an end of discharge of the battery;

    sensing a first voltage level of the battery during the first induced relaxation state when a rate of change of the first voltage level meets a voltage stability threshold during the first induced relaxation state;

    releasing the battery from the first induced relaxation state;

    charging the battery to at least 30 percent of an original capacity of the battery over a continuous time span, reaching a midpoint of a charging state of the battery, the midpoint relative to a full charge state of the battery;

    inducing a second induced relaxation state in response to occurrence of a second event, wherein the second event corresponds to the charging state of the battery reaching the midpoint;

    sensing a second voltage level of the battery during the second induced relaxation state when the rate of change of the second voltage level meets the voltage stability threshold during the second induced relaxation state; and

    calibrating a capacity of the battery based on the first voltage level and the second voltage level, wherein the calibration comprises updating or a correcting the capacity of the battery.

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