You Do Need power plug adapter while traveling from Dominican Republic to Chad.

Here is Why You Need An Adapter

The outlet and plug type used in Chad are C, D, E and F and in Dominican Republic are A, B and C. This is how they look like.

Dominican Republic

In Dominican Republic, outlets of type A, B and C are in use.

Type A

Type B

Type C

Chad

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

Type C

Type D

Type E

Type F