Patent ID: 11949263
Assignee: MILWAUKEE ELECTRIC TOOL CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A portable power source comprising:
a housing;
a first power tool battery pack port formed in the housing and configured to supportably receive a first power tool battery pack;
a receptacle formed in the housing and configured to supportably receive an energy storage device, the energy storage device not configured to be received by the first power tool battery pack port;
a power output panel including an alternating current (“AC”) output connecter for providing AC power to a peripheral device;
an inverter electrically connected to the first power tool battery pack port, the energy storage device, and the AC output;
circuitry configured to connect one of the first power tool battery pack port and the energy storage device for supplying power to the inverter; and
a controller including an electronic processor, the controller configured to:
control the circuitry to provide direct current (“DC”) power from the energy storage device to the inverter when a state of charge of the energy storage device is above a first voltage threshold, and
control the circuitry to provide DC power from the first power tool battery pack port to the inverter when the state of charge of the energy storage device is below the first voltage threshold or the energy storage device is disconnected from the receptacle.