Device battery charger

FIG. 1 is an isometric view of a top, front, and left side of an embodiment of an ornamental design for a device battery charger;

FIG. 2 is a front elevational view of the device battery charger of FIG. 1 ;

FIG. 3 is a rear elevational view of the device battery charger of FIG. 1 ;

FIG. 4 is a left side elevational view of the device battery charger of FIG. 1 ;

FIG. 5 is a right side elevational view of the device battery charger of FIG. 1 ;

FIG. 6 is a top plan view of the device battery charger of FIG. 1 ;

FIG. 7 is a bottom plan view of the device battery charger of FIG. 1 ;

FIG. 8 is an isometric view of a top, front, and left side of an additional embodiment of an ornamental design for a device battery charger;

FIG. 9 is a front elevational view of the device battery charger of FIG. 8 ;

FIG. 10 is a rear elevational view of the device battery, charger of FIG. 8 ;

FIG. 11 is a left side elevational view of the device battery charger of FIG. 8 ;

FIG. 12 is a right side elevational view of the device battery charger of FIG. 8 ;

FIG. 13 is a top plan view of the device battery charger of FIG. 8 ; and,

FIG. 14 is a bottom plan view of the device battery charger of FIG. 8 .

The broken lines shown in the drawings are included for the purpose of illustrating unclaimed portions of the device battery charger, and form no part of the claimed design.