You Do Need power plug adapter while traveling from Cape Verde to Liberia.

Here is Why You Need An Adapter

The outlet and plug type used in Liberia are A, B, C and F and in Cape Verde are C and F. This is how they look like.

Cape Verde

In Cape Verde, outlets of type C and F are in use.

Type C

Type F

Liberia

In Liberia, outlets of type A, B, C and F are in use.

Type A

Type B

Type C

Type F