You Do Need power plug adapter while traveling from Chad to Côte d'Ivoire (Ivory Coast).

Here is Why You Need An Adapter

The outlet and plug type used in Côte d'Ivoire (Ivory Coast) are C and E and in Chad are C, D, E and F. This is how they look like.

Chad

In Chad, outlets of type C, D, E and F are in use.

Type C

Type D

Type E

Type F

Côte d'Ivoire (Ivory Coast)

In Côte d'Ivoire (Ivory Coast), outlets of type C and E are in use.

Type C

Type E