Power Cell

Power Cells are key items found aboard the Von Braun in System Shock 2.

Overview
Power Cells are used as backup energy sources for doors or lighting systems. They are found depleted, almost always near the auxiliary power units they fit into. The Cells must be charged before use. Being power storage devices, they accept many sources of energy: Recharge Stations, Portable Batteries and Electron Cascade Psi Power. They can't be used to recharge other items.