Battery pack

FIG. 1 is a top, front perspective view of a battery pack, showing our new design;

FIG. 2 is a top, left, rear perspective view thereof;

FIG. 3 is a top, right, rear perspective view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a front view thereof;

FIG. 7 is a rear view thereof;

FIG. 8 is a top view thereof; and,

FIG. 9 is a bottom view thereof.

In the drawings, the broken lines illustrate portions of the article which form no part of the claimed design.