The ornamental design for a batteryunitcharger, as shown and described.
FIG. 1 is a front perspective view of a battery unit charger, showing my new design;
FIG. 2 is a bottom plan view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a right-side elevation view thereof;
FIG. 5 is a left side elevation view thereof;
FIG. 6 is a front elevation view thereof, in an open position;
FIG. 7 is a rear elevation view of FIG. 6;
FIG. 8 is a perspective view of the battery unit charger of FIG. 1 shown in environmental use; and,
FIG. 9 is a perspective view of the batter unit charger of FIG. 8 in an open position.
Portions of the battery unit charger are shown with symbolic breaks in length. The appearance of any portion of the article between the break lines form no part of the claimed design.
The broken lines shown represent environmental subject matter and form no part of the claimed design.