Portable battery pack charging system, method for recharging a battery pack, and adapter therefor
First Claim
1. A portable system for recharging a battery pack while the battery pack is attached and electrically connected to a hand-held power tool, comprising:
- a charger configured to supply power for recharging battery cells in the battery pack, wherein the charger comprises or is attached to a self-contained power supply, andmeans for attaching the charger to a user, wherein the attaching means comprises a belt configured to be worn around the user'"'"'s waist and a belt hook receiver supporting at least one charging terminal of the charger configured to communicate charging current via a wired connection.
1 Assignment
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Accused Products
Abstract
A method for recharging a battery pack includes attaching a portable charger to a user, which portable charger includes or is attached to a self-contained power supply and wherein a first charging port of the portable charger is disposed, e.g., on a belt worn by the user, hanging the battery pack on the belt while the battery pack is physically engaged and in electrical communication with a power tool, and initiating a transfer of power from the charger to the battery pack when the first charging port is at least proximal to a second charging port that is in electrical communication with at least one battery cell of the battery pack. A portable charging system capable of performing this method, as well as an adapter for use in performing this method, are also disclosed.
98 Citations
26 Claims
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1. A portable system for recharging a battery pack while the battery pack is attached and electrically connected to a hand-held power tool, comprising:
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a charger configured to supply power for recharging battery cells in the battery pack, wherein the charger comprises or is attached to a self-contained power supply, and means for attaching the charger to a user, wherein the attaching means comprises a belt configured to be worn around the user'"'"'s waist and a belt hook receiver supporting at least one charging terminal of the charger configured to communicate charging current via a wired connection. - View Dependent Claims (2, 3, 4, 5, 6, 26)
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7. A method for recharging a battery pack comprising:
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attaching a portable charger to a user, wherein the portable charger comprises or is attached to a self-contained power supply and wherein a first charging port of the portable charger is disposed on a belt worn by the user, hanging the battery pack on the belt while the battery pack is physically engaged and in electrical communication with a power tool, and initiating a transfer of power from the charger to the battery pack when the first charging port is at least proximal to a second charging port that is in electrical communication with at least one battery cell of the battery pack. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method for recharging a battery pack comprising:
transferring power from a charger to the battery pack while the battery pack is attached to a power tool upon detecting the proximity a first charging port of the charger to a second charging port that is in electrical communication with at least one battery cell of the battery pack. - View Dependent Claims (20, 21)
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22. A system comprising:
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a hand-held power tool comprising an electric motor, a tool chuck operably connected to, and driven by, the electric motor, and a battery pack mount that includes first and second power terminals; a battery pack detachably attached to the battery pack mount, the battery pack comprising (i) a plurality of first rechargeable battery cells and (ii) first and second battery terminals electrically connected to the plurality of first rechargeable battery cells and also to the first and second power terminals, respectively; a belt configured to be worn around a user'"'"'s waist; a charger comprising a plurality of second rechargeable battery cells configured to supply charging current for recharging the first rechargeable battery cells in the battery pack, the charger being mounted on the belt; and first and second charging terminals coupled to the belt and electrically connected to the plurality of second rechargeable battery cells, the first and second charging terminals being configured to communicate the charging current to the first rechargeable battery cells of the battery pack via a wired connection while the power tool is hung on the belt and the battery pack remains attached to the battery mount of the power tool. - View Dependent Claims (23, 24, 25)
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Specification