You Do Need power plug adapter while traveling from United States of America (US) USA to Algeria.

Here is Why You Need An Adapter

The outlet and plug type used in Algeria are C and F and in United States of America (US) USA are A and B. This is how they look like.

United States of America (US) USA

In United States of America (US) USA, outlets of type A and B are in use.

Type A

Type B

Algeria

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

Type C

Type F