Battery backpack

Description

1.1 is a front perspective view of a battery backpack showing the new design;

1.2 is a front view thereof;

1.3 is a back view thereof;

1.4 is a left-side view thereof;

1.5 is a right-side view thereof;

1.6 is a top view thereof; and

1.7 is a bottom view thereof.

The dashed broken lines depict portions of the battery backpack that form no part of the claimed design.

Claims

The ornamental design for a battery backpack, as shown and described.