LITHIUM-BASED BATTERY PACK FOR A HAND HELD POWER TOOL
First Claim
1. A battery pack for powering a high current draw hand held power tool, the battery pack comprising:
- a housing connectable to and supportable by the hand held power tool;
a plurality of battery cells supported by the housing, the battery cells being capable of producing a battery pack discharge current greater than or equal to approximately 20 amps, the battery cells having a lithium-based chemistry; and
at least one terminal through which the battery pack discharge current flows, the at least one terminal connectable to at least one corresponding terminal of the hand held power tool.
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Accused Products
Abstract
A method for conducting an operation including a power tool battery pack. The battery pack can include a housing, a first cell supported by the housing and having a voltage, and a second cell supported by the housing and having a voltage. The battery pack also can be connectable to a power tool and be operable to supply power to operate the power tool. The method can include discharging one of the first cell and the second cell until the voltage of the one of the first cell and the second cell is substantially equal to the voltage of the other of the first cell and the second cell.
71 Citations
12 Claims
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1. A battery pack for powering a high current draw hand held power tool, the battery pack comprising:
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a housing connectable to and supportable by the hand held power tool; a plurality of battery cells supported by the housing, the battery cells being capable of producing a battery pack discharge current greater than or equal to approximately 20 amps, the battery cells having a lithium-based chemistry; and at least one terminal through which the battery pack discharge current flows, the at least one terminal connectable to at least one corresponding terminal of the hand held power tool. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification