BATTERY MANAGEMENT SYSTEM AND METHOD FOR EXTENDING TIME UNTIL A BATTERY REACHES AN OVER-DISCHARGED STATE DURING STORAGE OF AN INFORMATION HANDLING SYSTEM
First Claim
1. A computer implemented method to extend a time until a battery reaches an over-discharged state during storage of an information handing system, the method comprising:
- determining if a first battery parameter is outside an associated first battery parameter specification;
in response to the first battery parameter being outside the associated first battery parameter specification, a power management controller turning off a charge/discharge field effect transistor (FET), wherein turning off the charge/discharge FET reduces power consumption and extends the time until the battery reaches the over-discharged state;
determining if the first battery parameter is outside an associated second battery parameter specification; and
in response to the first battery parameter being outside the associated second battery parameter specification, triggering the controller to enter into a minimum power state, wherein the controller entering into the minimum power state further reduces power consumption and further extends the time until the battery reaches the over-discharged state.
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Abstract
A computer-implemented method extends the time until the battery reaches an over-discharged state of an information handling system during storage. The method comprises determining if a first battery parameter is outside an associated first battery parameter specification. When the first battery parameter is outside the associated first battery parameter specification, a power management controller isolates the battery by turning off a charge/discharge field effect transistor. The method also includes determining if the first battery parameter is outside an associated second battery parameter specification. In response to the first battery parameter being outside the associated second battery parameter specification, the power management controller is triggered to enter a minimum power state to further reduce power consumption from the battery.
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Citations
21 Claims
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1. A computer implemented method to extend a time until a battery reaches an over-discharged state during storage of an information handing system, the method comprising:
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determining if a first battery parameter is outside an associated first battery parameter specification; in response to the first battery parameter being outside the associated first battery parameter specification, a power management controller turning off a charge/discharge field effect transistor (FET), wherein turning off the charge/discharge FET reduces power consumption and extends the time until the battery reaches the over-discharged state; determining if the first battery parameter is outside an associated second battery parameter specification; and in response to the first battery parameter being outside the associated second battery parameter specification, triggering the controller to enter into a minimum power state, wherein the controller entering into the minimum power state further reduces power consumption and further extends the time until the battery reaches the over-discharged state. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A battery management system for extending a time until a battery reaches an over-discharged state during storage, the battery management system comprising:
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a battery; a charge/discharge field effect transistor coupled to the battery; a power management controller coupled to the battery and to the charge/discharge field effect transistor (FET), the controller having firmware executing thereon to enable extending the time until the battery reaches the over-discharged state, wherein the firmware configures the controller to; determine if a first battery parameter is outside an associated first battery parameter specification; in response to the first battery parameter being outside the associated first battery parameter specification, turn off the charge/discharge FET, wherein turning off the charge/discharge FET reduces power consumption and extends the time until the battery reaches the over-discharged state; determine if the first battery parameter is outside an associated second battery parameter specification; and in response to the first battery parameter being outside the associated second battery parameter specification, trigger the controller to enter into a minimum power state, wherein the controller entering into the minimum power state further reduces power consumption and further extends the time until the battery reaches an over-discharged state. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. An information handling system (IHS) comprising:
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a battery operable to supply power to the information handling system; a charge/discharge field effect transistor (FET) coupled to the battery; a power management controller coupled to the battery and to the charge/discharge field effect transistor, the controller having firmware executing thereon to enable extending the time until the battery reaches an over-discharged state during storage, wherein the firmware configures the power management controller to; determine if the first battery parameter is outside an associated first battery parameter specification; in response to the first battery parameter being outside the associated first battery parameter specification, turn off the charge/discharge FET, wherein turning off the charge/discharge FET reduces power consumption and extends the time until the battery reaches an over-discharged state; determine if the first battery parameter is outside an associated second battery parameter specification; and in response to the first battery parameter being outside the associated second battery parameter specification, trigger the power management controller to enter into a minimum power state, wherein the controller entering into the minimum power state further reduces power consumption and further extends the time until the battery reaches an over-discharged state. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification