The ornamental design for a batterypack, as shown and described.
FIG. 1 is a perspective view of a battery pack showing our new design;
FIG. 2 is a right side elevational view of the battery pack of FIG. 1;
FIG. 3 is a left side elevational view of the battery pack of FIG. 1;
FIG. 4 is a front elevational view of the battery pack of FIG. 1;
FIG. 5 is a rear elevational view of the battery pack of FIG. 1;
FIG. 6 is a top plan view of the battery pack of FIG. 1; and,
FIG. 7 is a bottom plan view of the battery pack of FIG. 1.
In the drawings the evenly spaced broken lines illustrate portions of the battery pack that form no part of the claimed design. The dot-dash broken lines represent a boundary to the claimed design and form no part thereof.