[[Image:PyroAcidBattery.jpg|thumb|right|200px|A Pyrod Acid Battery{{Fn|2}}]]'''Pyro-acid Batteries''' are a kind of [[Weapons Battery]] used on [[Tyranid]] [[Bio-ship]]s. {{Fn|1}} Launching toxins and pyro-acids, these gigantic [[Biomorph]]s can cause considerable damage on impact to enemy ships. Moreover after impact they unleash hordes of smaller Tyranid creatures into the ship, and these often prove more deadly then the weapon itself.{{Fn|1}}