US D623133 S1
The ornamental design for a battery charger, as shown and described.
FIG. 1 is a perspective view of a battery charger showing our new design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is a right side view thereof, the left side view thereof being a mirror image; and,
FIG. 7 is a referential perspective view thereof showing a state in use, the code connected thereto, PDA and battery lied thereon are shown in broken lines forming no part of the claimed design.
The broken lines shown in the figures are for illustrative purposes only and form no part of the claimed design.