Battery pack charging system and method
First Claim
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1. A battery pack charging system, comprising:
- a charger configured to be removably coupled to at least two different battery packs each having a different regulation charge voltage associated therewith;
a charger controller configured to cause the charger to charge the at least two different battery packs to the respective regulation charge voltages based on a signal received from each of the respective battery packs; and
a battery pack from the at least two different battery packs comprising;
one or more battery cells having a positive terminal and a negative terminal;
at least one switch connected at one end to the positive terminal and directly connected at another end to a first terminal of the battery pack for electrical connection to the charger; and
a sensing element directly connected at one end to the positive terminal and directly connected at another end to a second terminal of the battery pack, the sensing element configured to provide the signal to the charger controller via the second terminal.
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Abstract
A battery pack charging system comprises a charger configured to be removably coupled to at least two different battery packs each having a different regulation charge voltage associated therewith, and a charger controller configured to cause the charger to charge the at least two different battery packs to the respective regulation charge voltages based on a signal received from each of the respective battery packs.
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Citations
20 Claims
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1. A battery pack charging system, comprising:
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a charger configured to be removably coupled to at least two different battery packs each having a different regulation charge voltage associated therewith; a charger controller configured to cause the charger to charge the at least two different battery packs to the respective regulation charge voltages based on a signal received from each of the respective battery packs; and a battery pack from the at least two different battery packs comprising; one or more battery cells having a positive terminal and a negative terminal; at least one switch connected at one end to the positive terminal and directly connected at another end to a first terminal of the battery pack for electrical connection to the charger; and a sensing element directly connected at one end to the positive terminal and directly connected at another end to a second terminal of the battery pack, the sensing element configured to provide the signal to the charger controller via the second terminal. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A battery pack charging system, comprising:
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a charger configured to charge a battery pack removably coupled thereto; a voltage divider sensing circuit comprising a plurality of sensing elements, at least a first sensing element of the plurality of sensing elements disposed in the charger and at least a second sensing element of the plurality of sensing elements disposed in the battery pack, wherein when the battery pack is coupled to the charger, the voltage divider sensing circuit indicates a regulation charge voltage for the battery pack; and the battery pack comprising; one or more battery cells having a positive terminal and a negative terminal; at least one switch connected at one end to the positive terminal and directly connected at another end to a first terminal of the battery pack for electrical connection to the charger; and the second sensing element directly connected at one end to the positive terminal and directly connected at another end to a second terminal of the battery pack for electrically connecting to the first sensing element, the second sensing element configured to provide a signal to the second terminal used for determining the regulation charge voltage. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A battery pack charging system, comprising:
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means for removably coupling a charging means to a battery means; and a voltage divider means comprising a plurality of sensing element means, at least a first sensing element of the plurality of sensing element means disposed in the charging means and at least a second sensing element of the plurality of sensing element means disposed in the battery means, wherein when the battery means is coupled to the charging means, the voltage divider means indicates a regulation charge voltage for the battery means; and the battery means comprising; one or more battery cells having a positive terminal and a negative terminal; at least one switch connected at one end to the positive terminal and directly connected at another end to a first terminal of the battery means for electrical connection to the charger; and the second sensing element directly connected at one end to the positive terminal and directly connected at another end to a second terminal of the battery means for electrically connecting to the first sensing element, the second sensing element configured to provide a signal to the second terminal used for determining the regulation charge voltage. - View Dependent Claims (17, 18, 19, 20)
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Specification