A battery pack comprising: a housing having a first end, a second end, a longitudinal axis extending between the first end and the second end, a first surface, and a second surface; electrical terminals positioned within the housing and configured to engage and electrically couple with electrical terminals of a power tool; and a latch mechanism including a body having a longitudinal axis, characterized by further including an actuator, and a latch member movable through an aperture in the second surface, the actuator and the latch member being positioned on opposite ends of the body and separated by a gap; and wherein the actuator is arranged to move within an aperture in the first surface and the actuator includes: a distal end relative to the longitudinal axis of the body of the latch mechanism and positioned adjacent the first end of the housing, a proximal end relative to the longitudinal axis of the body of the latch mechanism and spaced apart from the distal end, the distal end is positioned above the proximal end, and an actuating surface that extends between the distal end and the proximal end and slopes inwardly and downwardly relative to the housing of the battery pack. a housing having a first end, a second end, a longitudinal axis extending between the first end and the second end, a first surface, and a second surface; electrical terminals positioned within the housing and configured to engage and electrically couple with electrical terminals of a power tool; and a latch mechanism including a body having a longitudinal axis, characterized by further including an actuator, and a latch member movable through an aperture in the second surface, the actuator and the latch member being positioned on opposite ends of the body and separated by a gap; and wherein the actuator is arranged to move within an aperture in the first surface and the actuator includes: a distal end relative to the longitudinal axis of the body of the latch mechanism and positioned adjacent the first end of the housing, a proximal end relative to the longitudinal axis of the body of the latch mechanism and spaced apart from the distal end, the distal end is positioned above the proximal end, and an actuating surface that extends between the distal end and the proximal end and slopes inwardly and downwardly relative to the housing of the battery pack. a body having a longitudinal axis, characterized by further including an actuator, and a latch member movable through an aperture in the second surface, the actuator and the latch member being positioned on opposite ends of the body and separated by a gap; and wherein the actuator is arranged to move within an aperture in the first surface and the actuator includes: a distal end relative to the longitudinal axis of the body of the latch mechanism and positioned adjacent the first end of the housing, a proximal end relative to the longitudinal axis of the body of the latch mechanism and spaced apart from the distal end, the distal end is positioned above the proximal end, and an actuating surface that extends between the distal end and the proximal end and slopes inwardly and downwardly relative to the housing of the battery pack. a distal end relative to the longitudinal axis of the body of the latch mechanism and positioned adjacent the first end of the housing, a proximal end relative to the longitudinal axis of the body of the latch mechanism and spaced apart from the distal end, the distal end is positioned above the proximal end, and an actuating surface that extends between the distal end and the proximal end and slopes inwardly and downwardly relative to the housing of the battery pack.