Mysterious component

The mysterious component, in reality an Ultracite battery cell, is a miscellaneous quest item in the Fallout 76 update Steel Dawn.

Characteristics
This device is a power cell made from Ultracite. Incredibly powerful, compact, and valuable, the Brotherhood First Expeditionary Force wants to reverse-engineer it and use the cell to boost a communications transmitter at the Enclave research facility to full range, so that they can re-establish contact with High Elder Roger Maxson and the rest of the Brotherhood at Lost Hills in California.

Scribe Odessa Valdez would also like to make more battery cells once the device is reverse-engineered, so that its powerful capabilities could be applied to other things, such as Vertibirds.

Locations
The mysterious component is retrieved from the top of the central machine in the ATLAS substructure during the quest Mother of Invention. It appears after the induction coil is retrieved from the same place.