You Do Need power plug adapter while traveling from Burkina Faso to Senegal.

Here is Why You Need An Adapter

The outlet and plug type used in Senegal are C, D, E and K and in Burkina Faso are C and E. This is how they look like.

Burkina Faso

In Burkina Faso, outlets of type C and E are in use.

Type C

Type E

Senegal

In Senegal, outlets of type C, D, E and K are in use.

Type C

Type D

Type E

Type K