METHOD AND SYSTEM OF CHARGING MULTI-CELL LITHIUM-BASED BATTERIES
First Claim
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1. A battery charger operable to charge a first battery and a second battery, the battery charger comprising:
- a controller; and
a charging circuit operable to charge the first battery and the second battery, the first battery having a first plurality of battery cells, each cell in the first plurality having a Lithium-based chemistry, the first battery having a first nominal voltage in a nominal voltage range, and the second battery having a second plurality of battery cells, the total number of cells in the first plurality being different than the total number of cells in the second plurality, each cell in the second plurality having a Lithium-based chemistry, the second battery having a second nominal voltage, the second nominal voltage being different than the first nominal voltage and being outside of the nominal voltage range.
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Abstract
A method and system for battery charging. In some aspects, a battery charger includes a controller and a charging circuit that is operable to charge Lithium-based batteries of varying nominal voltages and/or number of battery cells.
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Citations
19 Claims
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1. A battery charger operable to charge a first battery and a second battery, the battery charger comprising:
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a controller; and
a charging circuit operable to charge the first battery and the second battery, the first battery having a first plurality of battery cells, each cell in the first plurality having a Lithium-based chemistry, the first battery having a first nominal voltage in a nominal voltage range, and the second battery having a second plurality of battery cells, the total number of cells in the first plurality being different than the total number of cells in the second plurality, each cell in the second plurality having a Lithium-based chemistry, the second battery having a second nominal voltage, the second nominal voltage being different than the first nominal voltage and being outside of the nominal voltage range. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A battery charger operable to charge a first battery and a second battery, the battery charger comprising:
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a controller; and
a charging circuit operable to charge the first battery and the second battery, the first battery having a first plurality of battery cells, each cell in the first plurality having a Lithium-based chemistry, the first battery having a first nominal voltage in a nominal voltage range, and the second battery having a second plurality of battery cells, each cell in the second plurality having a Lithium-based chemistry, the second battery having a second nominal voltage, the second nominal voltage being different than the first nominal voltage and being outside of the nominal voltage range. - View Dependent Claims (10)
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11. A battery charger operable to charge a first battery and a second battery, the battery charger comprising:
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a controller; and
a charging circuit operable to charge the first battery and the second battery via pulse charging, the first battery having a first plurality of battery cells, each cell in the first plurality having a Lithium-based chemistry, and the second battery having a second plurality of battery cells, each cell in the second plurality having one of a Nickel-Cadmium chemistry and a Nickel-Metal-Hydride chemistry. - View Dependent Claims (12, 13, 14)
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15. A battery charger operable to charge a first power tool battery and a second power tool battery, the battery charger comprising:
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a controller; and
a charging circuit operable to provide charging current to the first power tool battery in a pulse mode, the charging circuit further operable to provide charging current to the second power tool battery, the first power tool battery having a Lithium-based chemistry, and the second power tool battery having a chemistry other than a Lithium-based chemistry. - View Dependent Claims (16, 17, 18, 19)
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Specification