You Do Need power plug adapter while traveling from Nicaragua to Laos.

Here is Why You Need An Adapter

The outlet and plug type used in Laos are A, B, C, E and F and in Nicaragua are A and B. This is how they look like.

Nicaragua

In Nicaragua, outlets of type A and B are in use.

Type A

Type B

Laos

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

Type A

Type B

Type C

Type E

Type F