Power case

FIG. 1 is a top perspective view of a power case;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a front elevation view thereof;

FIG. 6 is a left side elevation view thereof;

FIG. 7 is a right side elevation view thereof; and,

FIG. 8 is a bottom perspective view thereof.

The broken lines are for the purpose of illustrating surface features that form no part of the claimed ornamental design, and the symbolic break across the vertical aspect illustrates that embodiments within the scope of the present claimed design may vary in height but the portion of the design between those phantom breaklines forms no part of the claimed design.