Detection of the end-of-life for a rechargeable battery
First Claim
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1. A method comprising:
- identifying a rechargeable battery;
determining a designed capacity of said rechargeable battery;
determining a present full charge capacity of said rechargeable battery;
evaluating a status of said rechargeable battery, said evaluating comprising calculating remaining capacity of said rechargeable battery as a percentage of said designed capacity, said percentage calculated as dividing said present full charge capacity by said designed capacity; and
issuing an end-of-life warning for said rechargeable battery if an end-of-life status is detected.
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Abstract
A method for the detection of the end-of-life for a rechargeable battery. The method of one embodiment comprises identifying a rechargeable battery. A designed capacity of the rechargeable batterty is determined. A present full charge capacity of the rechargeable battery is determined. A status of the rechargeable battery is evaluated. An end-of-life warning for the battery is issued if an end-of-life status is detected.
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Citations
25 Claims
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1. A method comprising:
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identifying a rechargeable battery;
determining a designed capacity of said rechargeable battery;
determining a present full charge capacity of said rechargeable battery;
evaluating a status of said rechargeable battery, said evaluating comprising calculating remaining capacity of said rechargeable battery as a percentage of said designed capacity, said percentage calculated as dividing said present full charge capacity by said designed capacity; and
issuing an end-of-life warning for said rechargeable battery if an end-of-life status is detected. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
checking a number of charge cycles that have been conducted on said rechargeable battery, and issuing a cycling warning if said number of charge cycles has exceeded a cycling threshold; and
performing a charge leakage calculation to determine whether said leakage from said rechargeable battery is not acceptable.
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9. A method comprising:
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checking whether said battery is a smart battery;
checking whether a battery is known;
loading a profile for said battery if said battery is known;
requesting battery information if said battery is not known, said requesting comprising sending information requests to said battery if said battery is smart and comprising querying a user for said battery information if said battery is not smart;
polling said battery for a present battery status;
evaluating said present battery status to determine whether said battery has reached an end-of-life condition; and
issuing a warning if said end-of-life condition exists. - View Dependent Claims (10, 11, 12, 13, 14)
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15. An apparatus comprising:
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a rechargeable battery to provide stored charge from power cells;
a monitoring circuit coupled to said rechargeable battery, said monitoring circuit to measure voltages and currents across said rechargeable battery, said monitoring circuit further to determine a present full charge capacity in said rechargeable battery; and
a controller coupled to said monitoring circuit, said controller to detect a battery end-of-life condition in said rechargeable battery, wherein said controller is to calculate a remaining life value for said rechargeable battery as a percentage of a designed capacity for said rechargeable battery, said remaining life value based on what percent of said designed capacity is represented by said present full charge capacity. - View Dependent Claims (16, 17, 18, 19)
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20. A machine readable medium having embodied thereon a computer program, said computer program being executable by a machine to perform a method comprising:
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identifying a rechargeable battery;
determining a designed capacity of said rechargeable battery;
determining a present full charge capacity of said rechargeable battery;
evaluating a status of said rechargeable battery, said evaluating comprising calculating a remaining capacity of said rechargeable battery as a percentage of said designed capacity, said percentage calculated as dividing said present full charge capacity by said designed capacity; and
issuing an end-of-life warning for said battery if an end-of-life status is detected. - View Dependent Claims (21, 22, 23, 24, 25)
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Specification