Backup battery pack

[0001]FIG. 1 is a bottom, front, right-side isometric view of a backup battery pack showing our new design;

[0002]FIG. 2 is a bottom plan view thereof;

[0003]FIG. 3 is a top plan view thereof;

[0004]FIG. 4 is a right-side elevation view thereof;

[0005]FIG. 5 is a left-side elevation view thereof;

[0006]FIG. 6 is a front-side elevation view thereof;

[0007]FIG. 7 is a rear-side elevation view thereof; and,

[0008]FIG. 8 is a top, front, right-side isometric view thereof.

[0009]The broken lines represent unclaimed portions of the design. All of the broken lines form no part of the claimed design.