You Do Need power plug adapter while traveling from Armenia to Central African Republic.

Here is Why You Need An Adapter

The outlet and plug type used in Central African Republic are C and E and in Armenia are C and F. This is how they look like.

Armenia

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

Type C

Type F

Central African Republic

In Central African Republic, outlets of type C and E are in use.

Type C

Type E