Lithium-based battery pack for a hand-held power tool

Details Lithium-based battery pack for a hand-held power tool Lithium-based battery pack for a hand-held power tool

2007-07-20

2009-06-30

Tso, Edward (Department: 2838)

Electricity: battery or capacitor charging or discharging

Cell or battery charger structure

For battery pack

Reexamination Certificate

active

07554290

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.

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