Patent ID: 11890739
Assignee: MILWAUKEE ELECTRIC TOOL CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC B  H  Y | IPC B  H

Claim 9:
10. A method of charging a battery pack with a battery pack charger, the battery pack charger including a housing, the housing including a support portion configured to receive a battery pack, the method comprising:
electrically connecting the battery pack to a battery pack charging portion of the battery pack charger;
receiving, by the battery pack charging portion, a power input from a universal serial bus (“USB”) input terminal;
determining, with an electronic controller of the battery pack charger, the power input received by the USB input terminal;
controlling, with the electronic controller and in response to determining that a first power input is received by the USB input terminal, the battery pack charging portion to operate at a first charging rate;
controlling, with the electronic controller and in response to determining that a second power input is received by the USB input terminal, the battery charging portion to operate at a second charging rate, the second charging rate being different than the first charging rate; and
outputting a charging current from the battery pack charging portion to the battery pack at the first charging rate or the second charging rate to charge the battery pack.