BATTERY CHARGING METHOD
First Claim
1. A battery charging method, implemented by a control circuit so as to charge a battery according to a charge-off current, comprising:
- reading an actual capacity parameter of the battery, wherein the actual capacity parameter of the battery represents a full charge capacity of the battery or a percentage representative of the full charge capacity of the battery divided by a design capacity of the battery;
reading a default regulation defining a plurality of battery capacity regions including a first battery capacity region and a second battery capacity region;
determining whether the actual capacity parameter of the battery is in the first battery capacity region or the second battery capacity region;
charging the battery according to a first charge-off current when determining the actual capacity parameter of the battery is within the first battery capacity region; and
charging the battery according to a second charge-off current when determining the actual capacity parameter of the battery is within the second battery capacity region;
wherein the first battery capacity region and the second battery capacity region are different, and the first charge-off current is smaller than the second charge-off current.
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Accused Products
Abstract
A battery charging method is provided for extending life of batteries. The method includes providing an appropriate charge-off voltage with respect to variation in both of a remaining capacity and an idle time of the battery. Further, the charge-off voltage may vary according to the remaining capacity and the idle time of the battery, so as to increase charging efficiency of the battery. Additionally, the present invention also provides adjusting a charge-off current to a value according to the variation in an actual capacity of the battery.
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Citations
8 Claims
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1. A battery charging method, implemented by a control circuit so as to charge a battery according to a charge-off current, comprising:
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reading an actual capacity parameter of the battery, wherein the actual capacity parameter of the battery represents a full charge capacity of the battery or a percentage representative of the full charge capacity of the battery divided by a design capacity of the battery; reading a default regulation defining a plurality of battery capacity regions including a first battery capacity region and a second battery capacity region; determining whether the actual capacity parameter of the battery is in the first battery capacity region or the second battery capacity region;
charging the battery according to a first charge-off current when determining the actual capacity parameter of the battery is within the first battery capacity region; andcharging the battery according to a second charge-off current when determining the actual capacity parameter of the battery is within the second battery capacity region; wherein the first battery capacity region and the second battery capacity region are different, and the first charge-off current is smaller than the second charge-off current. - View Dependent Claims (2)
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3. A battery charging method, implemented by a control circuit so as to charge a battery according to a charge-off voltage, comprising:
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recording a actual idle time of the battery; reading a default regulation defining a plurality of battery idle periods including a first battery idle period and a second battery idle period; determining whether the actual idle time is in the first battery idle period or the second battery idle period; charging the battery according to a first charge-off voltage when determining the actual idle time is within the first battery idle period; and charging the battery according to a second charge-off voltage when determining the actual idle time is within the second battery idle period; wherein the first battery idle period and the second battery idle period are different, and the first charge-off voltage is larger than the second charge-off voltage. - View Dependent Claims (4, 5, 6)
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7. A battery charging method, implemented by a control circuit so as to charge a battery according to a charge-off voltage, comprising:
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reading a remaining capacity parameter of the battery, wherein the remaining capacity parameter of the battery represents a remaining capacity of the battery or a percentage representative of the remaining capacity of the battery divided by a full charge capacity of the battery; reading a default regulation defining a plurality of remaining capacity regions of the battery including a first remaining capacity region and a second remaining capacity region; determining whether the remaining capacity parameter of the battery is in the first remaining capacity region or the second remaining capacity region; charging the battery in response to a first charge-off voltage when determining the remaining capacity parameter of the battery is within the first remaining capacity region; and charging the battery according to a second charge-off voltage when determining the remaining capacity parameter of the battery is within the second remaining capacity region; wherein the first remaining capacity region and the second remaining capacity region are different, and the first charge-off voltage is different to the second charge-off voltage. - View Dependent Claims (8)
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Specification