|For an overview of small energy cell ammunition types in the Fallout series of games, see energy cell.|
|The following is based on Fallout Tactics and is not canon.|
It is a small, self-contained energy storage unit.
Weapons using this ammunition
- 100 rounds appear for sale at Quartermaster Octavius after completion of the Rock Falls mission. The same amount will be added after Kansas City and Coldwater. The last batch of 300 pieces can be purchased after the Canyon City (mission).
- 20 rounds can be found in the Peoria underground bunker.
- 100 rounds in Mardin.
- 40 rounds on Thelma in Jefferson.
- 80 rounds can be found in Kansas City.
- At Coldwater, 160 rounds on deserters; another 40 can be bought from a dealer.
- At Newton, 40 rounds can be found in the safe, Tobias Peste has 40 more.
- Canyon City - 160 round can be found in the trunk
- In Scott City robot computers have 100 rounds; another 40 rounds can be found in a closet in the room with Bartholomew Kerr.
- Cheyenne Mountain - 270 rounds on robots.
- Vault 0 - 160 rounds on the Dagger Squad members.