Alien Power Cell (Fallout: New Vegas)

The alien power cell is a type of ammunition $$

Gameplay
This alien ammunition type is used with the Alien Blaster. Represented in groups from 11-25 by a small cylindrical battery-like object, alien power cells are light blue and luminescent, easily identifiable from other ammunition types.

Weapons using this ammunition

 * Alien blaster

Location
These are only obtainable if the Wild Wasteland trait is active (if Wild Wasteland is not active, hostile mercenaries with the unique YCS/186 Gauss rifle will be there instead). The alien captain will drop up to around 222 alien power cells along with the Alien Blaster.

The cells obtained from the captain are the only alien power cells in the game. Once they are used up, it is no longer possible to use the alien blaster again.