公开(公告)号：US20210175479A1

公开(公告)日：2021-06-10

申请号：US17114777

申请日：2020-12-08

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Connor P. Sprague ,  Evan M. Glanzer ,  John E. Koller ,  Patrick D. Gallagher

IPC: H01M2/10 ,  H02J7/00

Abstract: Battery configuration for gas engine replacement device. One embodiment provides a gas engine replacement device (10) including a housing (14) and a first battery pack (50) and a second battery pack (50) connected to the housing (14). The gas engine replacement device (10) also includes a motor (36) within the housing (14) and a power switching network (310) coupled to the motor (36), the first battery pack (50), and the second battery pack (50) and configured to drive the motor (36). The gas engine replacement device (10) further includes an electronic processor (302) coupled to the power switching network (310) and configured to sequentially discharge the first battery pack (50) and the second battery pack (50) to the power switching network (310) to drive the motor (36).