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AssigneeMilwaukee Electric Tool Corporation
InventorsTodd W. Johnson, Dennis J. Grzybowski, Mark A. Kubale, Jay J. Rosenbecker, Karl F. Scheucher, Gary D. Meyer, Jeffrey M. Zeiler, Kevin L. Glasgow
Estimating the term…
A system and method for battery protection. In some aspects, a method of conducting an operation including a battery pack, includes the acts of monitoring a first battery pack condition at a first monitoring rate, determining when a second battery pack condition reaches a threshold, after the second battery pack condition reaches the threshold, monitoring the first battery pack condition at a second monitoring rate, the second monitoring rate being different than the first monitoring rate. In some aspects, a method of conducting an operation including a battery, the battery including a cell having a voltage, power being transferable between the cell and the electrical device, a controller operable to control a function of the battery pack, the controller being operable with a voltage at least one of equal to and greater than an operating voltage threshold, the cell being operable to selectively supply voltage to the controller, includes the act of enabling the controller to operate when the voltage supplied by the cell is below the operating voltage threshold.
A battery pack configured to be interfaced with a power tool, the battery pack comprising:
A method of conducting an operation which includes operating a battery pack, the battery pack including a cell having a voltage, power being transferable between the cell and a power tool, a controller operable to control a function of the battery pack, the controller being operable with a voltage at least one of equal to and greater than an operating voltage threshold, the cell being operable to selectively supply voltage to the controller, and a circuit including a switch, the switch including a FET, said method comprising the act of enabling the controller to operate when the voltage supplied by the cell to the controller is below the operating voltage threshold of the controller, wherein the enabling act includes the act of controlling the FET such that the transfer of power between the cell and the power tool is selectively interrupted while the power tool is being operated by a user.
Dependencies are inferred from the claim text.