Read the dictionary definition of battery. All definitions for this word.
1. an assault in which the assailant makes physical contact
2. the heavy fire of artillery to saturate an area rather than hit a specific target
1. they laid down a barrage in front of the advancing troops
2. the shelling went on for hours without pausing
3. a device that produces electricity; may have several primary or secondary cells arranged in parallel or series
4. a series of stamps operated in one mortar for crushing ores
5. a collection of related things intended for use together
1. took a battery of achievement tests
6. a unit composed of the pitcher and catcher
7. group of guns or missile launchers operated together at one place