"Inside the insulated cask of the battery, the electromotive apparatus cracks the energy out of blood and converts it to electrical charge."
Biodynamic Cells are highly efficient cells despite their weight when full, holding six times as many charges as Chem Cells. They are generally quite easy to keep full as blood is a plentiful fluid, especially for those wielding axes, short blades, or serrated weapons.
A Biodynamic Cell is one of the various types of Energy Cells available in Caves of Qud.
As an unknown Artifact, it may appear as "small trinket" or "small cube", occasionally containing a few drams of blood.
As a liquid fueled energy cell, it produces power from Blood. Each dram of blood can produce 7500 units of charge, and it can hold a maximum of 8 drams. A fully fueled cell can provide 60,000 units of charge.