FIG. 1 is a top plan view of a battery pack showing my novel design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a left end view thereof;

FIG. 4 is a right end view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a rear elevational view thereof; and,

FIG. 7 is a perspective view of a battery pack of the present invention, as shown being used with an electronic device.

The broken lines shown in FIG. 7 are for illustrative purposes only, and form no part of the claimed design.