FIG. 1 is a top, front and left side perspective view of a battery pack showing my new design;
FIG. 2 is a bottom, rear and right side perspective view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a right side view thereof;
FIG. 7 is a top plan view thereof;
FIG. 8 is a bottom plan view thereof; and,
FIG. 9 is an enlarged view of portion 9 in FIG. 1.
The broken lines in the drawings illustrate portions of the battery pack which form no part of the claimed design.