Alien Power Cell (Fallout 3)

The Alien Power Cell is an energy weapons ammunition found in Fallout 3 of alien origin. It is used with two weapons, the Alien Blaster and the Firelance. In previous games, alien weapons simply used Small Energy Cells.

Fallout 3 Weapons Using Alien Power Cells

 * Alien Blaster
 * Firelance

Locations

 * 120 (10 clips of 12 rounds) can be found in and around the Alien Crash Site.
 * 96 (8 clips of 12 rounds) can be found under an overturned truck in a radioactive crater west of Jury Street Metro Station (halfway to Fort Bannister, and south of VAPL-58 Power Station).
 * 2-22 without the Scrounger perk (17 on average), or 2-122 with the perk (92 on average), can be found in two ammo boxes in Fort Independence, in the Outcast weapons room (Hard locked door) where you find the Miss Launcher. The method by which the outcome is determined (rolling for 1s at a 75% chance, 10 and/or 50 times) pretty much guarantees that the results will be on the high side (i.e., near 75% of 10 or 50). For each box, the number found is:
 * 1 guaranteed
 * Up to 10 more, as a 75% chance of getting one, sampled 10 times. This means you'll almost always get at least 5, and usually 7 or 8, with a max of 10.
 * Up to 50 more, again at 75% chance, if you have the Scrounger perk. You'll usually get around 37 or 38, and extremely rarely more than 43 or less than 32 (but 0 is theoretically possible). For more info, see Talk.
 * 24 can be found falling near you together with the Firelance in a random encounter.
 * At Fort Independence, Protector Casdin has 12 that you can pickpocket (or kill him). Sometimes he is killed by an Enclave attack.



Finding Them

 * Alien Power Cells glow in the dark. This can be useful for finding them, since they are small, but they may be scattered randomly, making them hard to spot. Even small dips in the ground or tufts of grass can hide them.
 * Another way to find them is to order Dogmeat to search for ammo when the cells are nearby.