The ornamental design for a batterypack, as shown and described.
FIG. 1 is a front and left perspective view of a battery pack design of an embodiment of the present disclosure;
FIG. 2 is a rear and right perspective view of the embodiment of FIG. 1;
FIG. 3 is a top plan view of the embodiment of FIG. 1;
FIG. 4 is a bottom plan view of the embodiment of FIG. 1;
FIG. 5 is a front elevational view of the embodiment of FIG. 1;
FIG. 6 is a rear elevational view of the embodiment of FIG. 1;
FIG. 7 is a right side elevational view of the embodiment of FIG. 1;
FIG. 8 is a left side elevational view of the embodiment of FIG. 1; and,
FIG. 9 is a front elevational view of the embodiment of FIG. 1 in an illuminated condition.
The claimed design includes shaded elements in FIG. 9 which represent illumination. The claimed design may transition between the views of FIGS. 1 and 1. The period with which one image transitions to another image forms no part of the claimed design. The dashed broken lines shown represent unclaimed subject matter and form no part of the claimed design.