Power Cell (Subnautica)

The Power Cell is a crafted item in the advanced tree of the Fabricator. It is a large power source that depletes over time in Survival mode. It is used in the Seamoth and Cyclops. The Power Cell  is also used in crafting of many items, such as the Constructor, SeaGlide, and Stasis Rifle. Currently, you cannot remove a cell once inserted, you can only replace cells that have reached 0%.