The ornamental design for a battery, as shown and described.
FIG. 1 is a perspective view of a battery showing our new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top view thereof;
FIG. 7 is a bottom view thereof;
FIG. 8 is a reference view illustrating the battery of FIG. 4 in the process of being assembled to a notebook computer;
FIG. 9 is another reference view illustrating the battery of FIG. 4 in the process of being assembled to a notebook computer;
FIG. 10 is another reference view illustrating the battery of FIG. 4 in the process of being assembled to a notebook computer; and,
FIG. 11 is a reference view illustrating the battery in FIG. 1 assembled to a notebook computer.
The portions shown in broken lines in FIGS. 1–7 and the notebook computer shown in FIGS. 8–11 are for illustrative purposes only and do not form part of the claimed design.