heavy weapon vs battery

heavy weapon and battery both are nouns.

Word	Noun	Adjective	Verb	Adverb
heavy weapon	Yes	No	No	No
battery	Yes	No	No	No

heavy weapon (noun)	battery (noun)
large but transportable armament	an assault in which the assailant makes physical contact
	the heavy fire of artillery to saturate an area rather than hit a specific target
	a device that produces electricity; may have several primary or secondary cells arranged in parallel or series
	a series of stamps operated in one mortar for crushing ores
	a collection of related things intended for use together
	group of guns or missile launchers operated together at one place
	a unit composed of the pitcher and catcher